論文

発表年月 タイトル／共同研究者 掲載誌 巻・号・頁 学術機関等
2024/12 Synthesis of Atropisomeric Quinazolin-4-one Derivatives Based on Remote H/D and <sup>12</sup>C/<sup>13</sup>C Discrimination
Yuka Watanabe, Utae Take, Ryunosuke Senda, Azusa Sato, Osamu Kitagawa
 The Journal of Organic Chemistry 90巻 1号 784から 793ページまで American Chemical Society (ACS)
2024/08 Structural Chemistry of C？N Axially Chiral Compounds
Osamu Kitagawa
 The Journal of Organic Chemistry 89巻 16号 11089から 11099ページまで American Chemical Society (ACS)
2024/07 Rotational Behavior about the N3？Pyridyl Bond in 3-(Pyridin-2-yl)quinazolin-4-one and 4-Thione Derivatives
Yuxiang Wang, Yue Yang, Daiki Homma, Elsa Caytan, Christian Roussel, Azusa Sato, Hikaru Yanai, Osamu Kitagawa
 The Journal of Organic Chemistry 89巻 15号 11072から 11077ページまで American Chemical Society (ACS)
2024/04 Regio- and Stereoselective α-Allylation with Enolates Prepared from N？C Axially Chiral Thiolactam and Lactam
Tatsunori Sakagami, Ryosuke Matsui, Shohei Aoyama, Erina Niijima, Gary J. Richards, Akiko Hori, Osamu Kitagawa
 The Journal of Organic Chemistry 89巻 10号 7312から 7319ページまで American Chemical Society (ACS)
2023/10 Chirality Transfer Intramolecular Pauson？Khand Reaction with N？C Axially Chiral Sulfonamides Bearing an Ene？Yne Structure
Ryohei Kasahara, Tatsuya Toyoda, Sota Fukasawa, Aoi Takeuchi, Azusa Sato, Akiko Hori, Osamu Kitagawa
 Organic Letters 25巻 40号 7390から 7394ページまで American Chemical Society (ACS)
2023/10 炭素-窒素不斉軸を有するアトロプ異性キナゾリノンの化学
Azusa Sato, Yuuki Fujimoto, Osamu Kitagawa
 Journal of Synthetic Organic Chemistry, Japan 81巻 10号 978から 987ページまで The Society of Synthetic Organic Chemistry, Japan
2023/06 Synthesis of Isotopic Atropisomers Based on <sup>12</sup>C/<sup>13</sup>C Discrimination
Ryunosuke Senda, Yuka Watanabe, Shota Miwa, Azusa Sato, Osamu Kitagawa
 The Journal of Organic Chemistry 88巻 13号 9579から 9583ページまで American Chemical Society (ACS)
2022/11 Catalytic Enantioselective Synthesis of N-C Axially Chiral N-(2,6-Disubstituted-phenyl)sulfonamides through Chiral Pd-Catalyzed N-Allylation
Sota Fukasawa, Tatsuya Toyoda, Ryohei Kasahara, Chisato Nakamura, Yuuki Kikuchi, Akiko Hori, Gary J. Richards, Osamu Kitagawa
 Molecules 27巻 22号 7819から 7819ページまで MDPI AG
2022/11 Asymmetric Synthesis of Isotopic Atropisomers based on ortho-CH3/CD3 Discrimination and Their Structural Properties
Shota Miwa, Ryunosuke Senda, Kazuya Saito, Azusa Sato, Yuko Nakamura, Osamu Kitagawa
 The Journal of Organic Chemistry 87巻 21号 13501から 13507ページまで American Chemical Society (ACS)
2022/06 Rotational Behavior of N-(5-Substituted-pyrimidin-2-yl)anilines: Relayed Electronic Effect in Two N？Ar Bond Rotations
Daiki Homma, Shuhei Taketani, Takeshi Shirai, Elsa Caytan, Christian Roussel, Jose Elguero, Ibon Alkorta, Osamu Kitagawa
 The Journal of Organic Chemistry 87巻 12号 8118から 8125ページまで American Chemical Society (ACS)
2022/04 Intermolecular Halogen Bond Detected in Racemic and Optically Pure N-C Axially Chiral 3-(2-Halophenyl)quinazoline-4-thione Derivatives
Ryosuke Matsui, Erina Niijima, Tomomi Imai, Hiroyuki Kobayashi, Akiko Hori, Azusa Sato, Yuko Nakamura, Osamu Kitagawa
 Molecules 27巻 7号 2369から 2369ページまで MDPI AG
2021/10 Detection of Isotopic Atropisomerism Based on ortho-H/D Discrimination
Kazuya Saito, Shota Miwa, Asumi Iida, Yuuki Fujimoto, Elsa Caytan, Christian Roussel, Osamu Kitagawa
 Organic Letters 23巻 19号 7492から 7496ページまで American Chemical Society (ACS)
2021/07 A unique method for highly enantioselective synthesis of N？C axially chiral compounds
Osamu Kitagawa
 Chem 7巻 7号 1696から 1698ページまで Elsevier BV
2021/02 Chiral Pd-Catalyzed Enantioselective Syntheses of Various N？C Axially Chiral Compounds and Their Synthetic Applications
Osamu Kitagawa
 Accounts of Chemical Research 54巻 3号 719から 730ページまで American Chemical Society (ACS)
2021/01 Studies on Rotational Stability of 2-Aryl-3-(2-fluorophenyl)quinazolin-4-one Derivatives
Asumi Iida, Kazuya Saito, Nanami Asada, Yuuki Fujimoto, Osamu Kitagawa
 Heterocycles 103巻 1号 183から 189ページまで
2021/01 Thionation of Optically Pure N-C Axially Chiral Quinazolin-4-one Derivatives with Lawesson’s Reagent
Erina Niijima, Tomomi Imai, Hayate Suzuki, Yuuki Fujimoto, Osamu Kitagawa
 The Journal of Organic Chemistry 86巻 1号 709から 715ページまで American Chemical Society (ACS)
2020/04 Relayed Proton Brake in N-Pyridyl-2-iso-propylaniline Derivative: Two Brakes with One Proton
Gaku Furukawa, Takeshi Shirai, Yuki Homma, Elsa Caytan, Nicolas Vanthuyne, Daniel Farran, Christian Roussel, Osamu Kitagawa
 The Journal of Organic Chemistry 85巻 7号 5109から 5113ページまで American Chemical Society (ACS)
2019/06 Catalytic Enantioselective Synthesis of N？C Axially Chiral Sulfonamides through Chiral Palladium-Catalyzed N-Allylation
Yuki Kikuchi, Chisato Nakamura, Mizuki Matsuoka, Rina Asami, Osamu Kitagawa
 The Journal of Organic Chemistry 84巻 12号 8112から 8120ページまで American Chemical Society (ACS)
2019/03 N？C Axially Chiral Compounds with an ortho-Fluoro Substituent and Steric Discrimination between Hydrogen and Fluorine Atoms Based on a Diastereoselective Model Reaction
Asumi Iida, Mizuki Matsuoka, Hiroshi Hasegawa, Nicolas Vanthuyne, Daniel Farran, Christian Roussel, Osamu Kitagawa
 The Journal of Organic Chemistry 84巻 6号 3169から 3175ページまで American Chemical Society (ACS)
2019/02 The self-disproportionation of enantiomers (SDE) of α-amino acid derivatives: facets of steric and electronic properties
Takuma Hosaka, Tomomi Imai, Alicja Wzorek, Magdalena Marcinkowska, Anna Kolbus, Osamu Kitagawa, Vadim A. Soloshonok, Karel D. Klika
Amino Acids 51巻 2号 283から 294ページまで Springer Science and Business Media LLC
2019/01 Chirality-dependent halogen bonds in axially chiral quinazolin-4-one derivatives bearing: Ortho -halophenyl groups
Tomomi Imai, Erina Niijima, Shumpei Terada, Alicja Wzorek, Vadim A. Soloshonok, Akiko Hori, Osamu Kitagawa
 CrystEngComm 21巻 22号 3385から 3389ページまで
2018/10 α-Alkylation of N？C Axially Chiral Quinazolinone Derivatives Bearing Various ortho-Substituted Phenyl Groups: Relation between Diastereoselectivity and the ortho-Substituent
Mizuki Matsuoka, Asumi Iida, Osamu Kitagawa
 Synlett 29巻 16号 2126から 2130ページまで Georg Thieme Verlag KG
2018/03 N－C Axially Chiral Anilines: Electronic Effect on Barrier to Rotation and A Remote Proton Brake
Yumiko Iwasaki, Ryuichi Morisawa, Satoshi Yokojima, Hiroshi Hasegawa, Christian Roussel, Nicolas Vanthuyne, Elsa Caytan, Osamu Kitagawa
Chemistry - A European Journal 24巻 17号 4453から 4458ページまで Wiley
2018/02 The self-disproportionation of enantiomers (SDE): A menace or an opportunity?
Jianlin Han, Osamu Kitagawa, Alicja Wzorek, Karel D. Klika, Vadim A. Soloshonok
 Chemical Science 9巻 7号 1718から 1739ページまで
2018/01 Chemistry of 2,4,6-tri-tert-butylanilides possessing isolable rotational isomer
Nobutaka Ototake, Osamu Kitagawa
 Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry 76巻 6号 575から 583ページまで
2017/10 Possible Case of Halogen Bond-Driven Self-Disproportionation of Enantiomers (SDE) via Achiral Chromatography
Shumpei Terada, Motohiro Hirai, Ayaka Honzawa, Osamu Kitagawa, Angelika Kamizela, Alicja Wzorek, Vadim A. Soloshonok
 Chemistry - A European Journal 23巻 58号 14631から 14638ページまで WILEY-V C H VERLAG GMBH
2017/05 Diastereoselective α-Alkylation of Metallo Enamines Generated from N-C Axially Chiral Mebroqualone Derivatives
Mizuki Matsuoka, Mitsuhiro Goto, Alicja Wzorek, Vadim A. Soloshonok, Osamu Kitagawa
 Organic Letters 19巻 10号 2650から 2653ページまで AMER CHEMICAL SOC
2017/01 Specific reactivity of 2,4,6-tri-tert-butylanilide anions and its application to benzylation reagent
Tomoyuki Yamada, Shiori Tsukagoshi, Osamu Kitagawa
 Tetrahedron Letters 58巻 4号 317から 320ページまで PERGAMON-ELSEVIER SCIENCE LTD
2016/11 Catalytic Enantioselective Synthesis of N-C Axially Chiral Mebroqualone and Its Derivatives through Reductive Asymmetric Desymmetrization
Motohiro Hirai, Shumpei Terada, Hiroaki Yoshida, Kenki Ebine, Tomoaki Hirata, Osamu Kitagawa
 Organic Letters 18巻 21号 5700から 5703ページまで AMER CHEMICAL SOC
2016/05 Chiral additive induced self-disproportionation of enantiomers under MPLC conditions: Preparation of enantiomerically pure samples of 1-(aryl)ethylamines from racemates
Mitsuhiro Goto, Kaori Tateishi, Kenki Ebine, Vadim A. Soloshonok, Christian Roussel, Osamu Kitagawa
 Tetrahedron Asymmetry 27巻 7-8号 317から 321ページまで PERGAMON-ELSEVIER SCIENCE LTD
2016/01 Catalytic Enantioselective Synthesis of N-C Axially Chiral Phenanthridin-6-one Derivatives
Tomoaki Hirata, Isao Takahashi, Yuya Suzuki, Hiroaki Yoshida, Hiroshi Hasegawa, Osamu Kitagawa
 The Journal of Organic Chemistry 81巻 1号 318から 323ページまで American Chemical Society (ACS)
2016/01 Enantioselective synthesis of N？C axially chiral indoles through chiral palladium-catalyzed 5-endo-hydroaminocyclization
Yudai Morimoto, Satoshi Shimizu, Ayano Mokuya, Nobutaka Ototake, Akio Saito, Osamu Kitagawa
 Tetrahedron 72巻 34号 5221から 5229ページまで PERGAMON-ELSEVIER SCIENCE LTD
2015/07 The synthesis of optically active N-C axially chiral tetrahydroquinoline and its response to an acid-accelerated molecular rotor
Yuya Suzuki, Masato Kageyama, Ryuichi Morisawa, Yasuo Dobashi, Hiroshi Hasegawa, Satoshi Yokojima, Osamu Kitagawa
 Chemical Communications 51巻 56号 11229から 11232ページまで ROYAL SOC CHEMISTRY
2015/01 A comprehensive examination of the self-disproportionation of enantiomers (SDE) of chiral amides via achiral, laboratory-routine, gravity-driven column chromatography
Yuya Suzuki, Jianlin Han, Osamu Kitagawa, Jose Luis Acena, Karel D. Klika, Vadim A. Soloshonok
 RSC Advances 5巻 4号 2988から 2993ページまで ROYAL SOC CHEMISTRY
2015/01 Relationship between rotational barriers and structures in N-C axially chiral 3,4-dihydroquinolin-2-one and 3,4-dihydrobenzoquinolin-2-one
Yuya Suzuki, Isao Takahashi, Yasuo Dobashi, Hiroshi Hasegawa, Christian Roussel, Osamu Kitagawa
 Tetrahedron Letters 56巻 1号 132から 135ページまで PERGAMON-ELSEVIER SCIENCE LTD
2014/01 Asymmetric synthesis of atropisomeric compounds with an N-C chiral axis
Isao Takahashi, Yuya Suzuki, Osamu Kitagawa
 Organic Preparations and Procedures International 46巻 1号 1から 23ページまで TAYLOR & FRANCIS INC
2013/09 Chiral initiator-induces self-disproportionation of enantiomers via achiral chromatography: Application to enantiomer separation of racemate
Kaori Tateishi, Shiori Tsukagoshi, Tsuyoshi Nakamura, Shotaro Watanabe, Vadim A. Soloshonok, Osamu Kitagawa
 Tetrahedron Letters 54巻 38号 5220から 5223ページまで PERGAMON-ELSEVIER SCIENCE LTD
2013/05 Unique structural properties of 2,4,6-tri-tert-butylanilide: Isomerization and switching between separable amide rotamers through the reaction of anilide enolates
Shiori Tsukagoshi, Nobutaka Ototake, Yusuke Ohnishi, Mayu Shimizu, Osamu Kitagawa
 Chemistry - A European Journal 19巻 21号 6845から 6850ページまで WILEY-V C H VERLAG GMBH
2013/01 Rotational isomerism in 2,4,6-tri-tert-butylanilides
Nobutaka Ototake, Isao Takahashi, Shiori Tsukagoshi, Tatsuki Maeda, Osamu Kitagawa
 Tetrahedron 69巻 3号 1013から 1016ページまで PERGAMON-ELSEVIER SCIENCE LTD
2012/12 Catalytic enantioselective synthesis of atropisomeric 2-aryl-4-quinolinone derivatives with an N-C chiral axis
Isao Takahashi, Fumika Morita, Shunsuke Kusagaya, Haruhiko Fukaya, Osamu Kitagawa
 Tetrahedron Asymmetry 23巻 24号 1657から 1662ページまで PERGAMON-ELSEVIER SCIENCE LTD
2012/08 Studies on rotational barriers of N-C axially chiral compounds: Increase in the rotational barrier by aromatization
Naomi Suzumura, Masato Kageyama, Daichi Kamimura, Takahiro Inagaki, Yasuo Dobashi, Hiroshi Hasegawa, Haruhiko Fukaya, Osamu Kitagawa
Tetrahedron Letters 53巻 33号 4332から 4336ページまで PERGAMON-ELSEVIER SCIENCE LTD
2012/05 Self-disproportionation of enantiomers of non-racemic chiral amine derivatives through achiral chromatography
Tsuyoshi Nakamura, Kaori Tateishi, Shiori Tsukagoshi, Saori Hashimoto, Shotaro Watanabe, Vadim A. Soloshonok, Jose Luis Acena, Osamu Kitagawa
Tetrahedron 68巻 21号 4013から 4017ページまで PERGAMON-ELSEVIER SCIENCE LTD
2012/05 Self-disproportionation of enantiomers via achiral chromatography: A warning and an extra dimension in optical purifications
Vadim A. Soloshonok, Christian Roussel, Osamu Kitagawa, Alexander E. Sorochinskya
 Chemical Society Reviews 41巻 11号 4180から 4188ページまで ROYAL SOC CHEMISTRY
2011/09 Catalytic enantioselective synthesis of novel atropisomeric compounds having an N-C chiral axis and their application to asymmetric reaction
Masashi Takahashi, Osamu Kitagawa
 Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry 69巻 9号 985から 993ページまで SOC SYNTHETIC ORGANIC CHEM JPN
2011/06 Notable structural property of 2,4,6-Tri- tert -butylanilide enolates: Interconversion between the rotamers and their reactivity
Yusuke Ohnishi, Masahi Sakai, Shouta Nakao, Osamu Kitagawa
 Organic Letters 13巻 11号 2840から 2843ページまで AMER CHEMICAL SOC
2011/01 Intramolecular Diels-Alder reaction of N-allyl 2-furoyl amides: Effect of steric strain and amide rotational isomerism
Masashi Nakamura, Isao Takahashi, Shunsuke Yamada, Yasuo Dobashi, Osamu Kitagawa
 Tetrahedron Letters 52巻 1号 53から 55ページまで PERGAMON-ELSEVIER SCIENCE LTD
2010/06 Catalytic enantioselective synthesis of atropisomeric indoles with an N-C chiral axis
Nobutaka Ototake, Yudai Morimoto, Ayano Mokuya, Haruhiko Fukaya, Yasuo Shida, Osamu Kitagawa
 Chemistry - A European Journal 16巻 23号 6752から 6755ページまで WILEY-BLACKWELL
2010/01 Atropisomeric lactam chemistry: catalytic enantioselective synthesis, application to asymmetric enolate chemistry and synthesis of key intermediates for NET inhibitors
Masashi Takahashi, Hajime Tanabe, Tsuyoshi Nakamura, Daisuke Kuribara, Toshiyuki Yamazaki, Osamu Kitagawa
 Tetrahedron 66巻 1号 288から 296ページまで PERGAMON-ELSEVIER SCIENCE LTD
2009/05 Highly selective stereodivergent synthesis of separable amide rotamers, by using Pd chemistry, and their thermodynamic behavior
Nobutaka Ototake, Masashi Nakamura, Yasuo Dobashi, Haruhiko Fukaya, Osamu Kitagawa
 Chemistry - A European Journal 15巻 20号 5090から 5095ページまで WILEY-V C H VERLAG GMBH
2008/09 Stereoselective synthesis of separable amide rotamers using π-allyl-Pd catalyst and their thermodynamic behavior
Nobutaka Ototake, Takeo Taguchi, Osamu Kitagawa
 Tetrahedron Letters 49巻 38号 5458から 5460ページまで PERGAMON-ELSEVIER SCIENCE LTD
2008/01 Catalytic enantioselective synthesis of key intermediates for NET inhibitors using atropisomeric lactam chemistry
Osamu Kitagawa, Daisuke Kurihara, Hajime Tanabe, Taichi Shibuya, Takeo Taguchi
 Tetrahedron Letters 49巻 3号 471から 474ページまで PERGAMON-ELSEVIER SCIENCE LTD
2006/10 Highly enantioselective synthesis of atropisomeric anilide derivatives through catalytic asymmetric N-arylation: Conformational analysis and application to asymmetric enolate chemistry
Osamu Kitagawa, Masatoshi Yoshikawa, Hajime Tanabe, Tomofumi Morita, Masashi Takahashi, Yasuo Dobashi, Takeo Taguchi
 Journal of the American Chemical Society 128巻 39号 12923から 12931ページまで AMER CHEMICAL SOC
2006/03 Catalytic Asymmetric Desymmetrization ofmeso-Diamide Derivatives through EnantioselectiveN-Allylation with a Chiral π-Allyl Pd Catalyst: Improvement and Reversal of the Enantioselectivity
Osamu Kitagawa, Shinichi Matsuo, Kanako Yotsumoto, Takeo Taguchi
 The Journal of Organic Chemistry 71巻 6号 2524から 2527ページまで American Chemical Society (ACS)
2005/03 Efficient synthesis of optically active atropisomeric anilides through catalytic asymmetric N-arylation reaction
Osamu Kitagawa, Masashi Takahashi, Masatoshi Yoshikawa, Takeo Taguchi
 Journal of the American Chemical Society 127巻 11号 3676から 3677ページまで AMER CHEMICAL SOC
2004/09 Catalytic asymmetric synthesis of vicinal diamine derivatives through enantioselective N-allylation using chiral π-allyl Pd-catalyst
Osamu Kitagawa, Kanako Yotsumoto, Mitsuteru Kohriyama, Yasuo Dobashi, Takeo Taguchi
 Organic Letters 6巻 20号 3605から 3607ページまで AMER CHEMICAL SOC
2004/04 Stereoselective Iodine Atom Transfer [3 + 2] Cycloaddition Reaction with Alkenes Using Unsymmetrical Allylated Active Methine Radicals
Osamu Kitagawa, Shinsaku Miyaji, Chiseko Sakuma, Takeo Taguchi
 The Journal of Organic Chemistry 69巻 7号 2607から 2610ページまで American Chemical Society (ACS)
2003/12 Synthesis of Optically Active Atropisomeric Anilide Derivatives through DiastereoselectiveN-Allylation with a Chiral Pd－π-Allyl Catalyst
Osamu Kitagawa, Masashi Takahashi, Mitsuteru Kohriyama, Takeo Taguchi
 The Journal of Organic Chemistry 68巻 25号 9851から 9853ページまで American Chemical Society (ACS)
2003/09 Carbocyclization reactions of terminally difluorinated alkenyl active methine compounds mediated by SnCl<inf>4</inf> and amine
Akio Saito, Midori Okada, Yuko Nakamura, Osamu Kitagawa, Hiroaki Horikawa, Takeo Taguchi
 Journal of Fluorine Chemistry 123巻 1号 75から 80ページまで ELSEVIER SCIENCE SA
2003/04 Iodine Atom Transfer [3 + 2] Cycloaddition Reaction with Electron-Rich Alkenes UsingN-Tosyliodoaziridine Derivatives as Novel Azahomoallyl Radical Precursors
Osamu Kitagawa, Shinsaku Miyaji, Yoichiro Yamada, Hiroki Fujiwara, Takeo Taguchi
 The Journal of Organic Chemistry 68巻 8号 3184から 3189ページまで American Chemical Society (ACS)
2002/11 Catalytic Asymmetric Synthesis of Optically Active Atropisomeric Anilides through EnantioselectiveN-Allylation with Chiral Pd-tol-BINAP Catalyst
Osamu Kitagawa, Mitsuteru Kohriyama, Takeo Taguchi
 The Journal of Organic Chemistry 67巻 24号 8682から 8684ページまで American Chemical Society (ACS)
2002/03 Radical cascade reaction with 1,4-dienes and 1,4-enynes using 2-(iodomethyl)cyclopropane-1,1-dicarboxylate as a homoallyl radical precursor: One-step synthesis of bicyclo[3.3.0]octane derivatives
Osamu Kitagawa, Yoichiro Yamada, Atsushi Sugawara, Takeo Taguchi
 Organic Letters 4巻 6号 1011から 1013ページまで AMER CHEMICAL SOC
2002/02 Radical [3 + 2] Cycloaddition Reaction with Various Alkenes Using Iodomethylcyclopropane Derivatives as New Homoallyl Radical Precursors
Osamu Kitagawa, Yoichiro Yamada, Hiroki Fujiwara, Takeo Taguchi
 The Journal of Organic Chemistry 67巻 3号 922から 927ページまで American Chemical Society (ACS)
2001/10 Iodoaziridine derivatives as novel azahomoallyl radical precursors for [3+2] cycloaddition reactions with alkenes
O. Kitagawa, Y. Yamada, H. Fujiwara, T. Taguchi
 Angewandte Chemie - International Edition 40巻 20号 3865から 3867ページまで WILEY-V C H VERLAG GMBH
2001/07 Synthesis of optically active aldol derivatives through chirality transfer type 1,2-Wittig rearrangement of α-alkoxycarboxamides
Osamu Kitagawa, Shu Ichi Momose, Yoichiro Yamada, Motoo Shiro, Takeo Taguchi
 Tetrahedron Letters 42巻 29号 4865から 4868ページまで PERGAMON-ELSEVIER SCIENCE LTD
2001/03 Radical [3+2]-cycloaddition reaction with alkenes using dimethyl 2-(iodomethyl)cyclopropane-1,1-dicarboxylate as a new homoallyl radical precursor
Osamu Kitagawa, Hiroki Fujiwara, Takeo Taguchi
 Tetrahedron Letters 42巻 11号 2165から 2167ページまで PERGAMON-ELSEVIER SCIENCE LTD
2001/01 Synthesis of optically active atropisomeric anilide derivatives and their application to asymmetric reaction
O. Kitagawa, T. Taguchi
 Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry 59巻 7号 680から 688ページまで
2000/10 Stereoselective synthesis of diastereomeric atropisomeric lactam with various ring sizes and their structural characterization
O. Kitagawa, M. Fujita, M. Kohriyama, H. Hasegawa, T. Taguchi
 Tetrahedron Letters 41巻 44号 8539から 8544ページまで PERGAMON-ELSEVIER SCIENCE LTD
2000/10 Intramolecular Carbostannation Reaction of Active Methine Compounds with an Unactivated C－C π-Bond Mediated by SnCl4－Et3N
Osamu Kitagawa, Hiroki Fujiwara, Takashi Suzuki, Takeo Taguchi, Motoo Shiro
 The Journal of Organic Chemistry 65巻 21号 6819から 6825ページまで American Chemical Society (ACS)
2000/06 Stereoselective synthesis of an optically active axially chiral lactam and its reaction with some electrophiles (vol 40, pg 1949, 1999)
M Fujita, O Kitagawa, H Izawa, A Dobashi, H Fukaya, T Taguchi
 TETRAHEDRON LETTERS 41巻 25号 4997から 4997ページまで PERGAMON-ELSEVIER SCIENCE LTD
2000/02 Synthesis of Optically Active 5-Substituted-2-pyrrolidinone Derivatives Having Atropisomeric Structure and 3,5-Cis-Selective Reaction of Their Enolates with Electrophiles
Masao Fujita, Osamu Kitagawa, Yoichiro Yamada, Hirotaka Izawa, Hiroshi Hasegawa, Takeo Taguchi
 The Journal of Organic Chemistry 65巻 4号 1108から 1114ページまで American Chemical Society (ACS)
1999/12 Efficient synthesis of various atropisomeric amides in optically pure forms and their application to asymmetric reactions
Osamu Kitagawa, Shu ichi Momose, Yoshihisa Fushimi, Takeo Taguchi
 Tetrahedron Letters 40巻 50号 8827から 8831ページまで PERGAMON-ELSEVIER SCIENCE LTD
1999/06 Alkaline metallic reagent-catalyzed hydrocarbocyclization reaction of various active methine compounds having an unactivated 4-alkynyl or allenyl group
Osamu Kitagawa, Takashi Suzuki, Hiroki Fujiwara, Masao Fujita, Takeo Taguchi
 Tetrahedron Letters 40巻 24号 4585から 4588ページまで PERGAMON-ELSEVIER SCIENCE LTD
1999/03 Intramolecular carbostannation reaction of active methine compounds having an allenyl group mediated by SnCl<inf>4</inf>-Et<inf>3</inf>N
Osamu Kitagawa, Takashi Suzuki, Hiroki Fujiwara, Takeo Taguchi
 Tetrahedron Letters 40巻 13号 2549から 2552ページまで PERGAMON-ELSEVIER SCIENCE LTD
1999/03 Stereoselective synthesis of an optically active axially chiral lactam and its reaction with some electrophiles
M. Fujita, O. Kitagawa, H. Izawa, A. Dobashi, H. Fukaya, T. Taguchi
 Tetrahedron Letters 40巻 10号 1949から 1952ページまで PERGAMON-ELSEVIER SCIENCE LTD
1999/01 Iodocarbocyclization and iodoaminocyclization reactions mediated by a metallic reagent
Osamu Kitagawa, Takeo Taguchi
 Synlett 8号 1191から 1199ページまで
1998/12 Carbocyclization Reaction of Active Methine Compounds with Unactivated Alkenyl or Alkynyl Groups Mediated by TiCl4－Et3N
Osamu Kitagawa, Takashi Suzuki, Tadashi Inoue, Yoko Watanabe, Takeo Taguchi
 The Journal of Organic Chemistry 63巻 25号 9470から 9475ページまで American Chemical Society (ACS)
1998/10 Intramolecular carbotitanation reaction of active methine compounds having an unactivated alkyne mediated by TiCl<inf>4</inf>-Et<inf>3</inf>N
Osamu Kitagawa, Takashi Suzuki, Tadashi Inoue, Takeo Taguchi
 Tetrahedron Letters 39巻 40号 7357から 7360ページまで PERGAMON-ELSEVIER SCIENCE LTD
1998/07 t-BuOK-Mediated Iodoaziridination Reaction ofN-Allylic Tosylamide Derivatives
Osamu Kitagawa, Takashi Suzuki, Takeo Taguchi
 The Journal of Organic Chemistry 63巻 14号 4842から 4845ページまで American Chemical Society (ACS)
1998/04 Optically Active Axially Chiral Anilide and Maleimide Derivatives as New Chiral Reagents:？ Synthesis and Application to Asymmetric Diels－Alder Reaction
Osamu Kitagawa, Hirotaka Izawa, Kiyonobu Sato, Akira Dobashi, Takeo Taguchi, Motoo Shiro
 The Journal of Organic Chemistry 63巻 8号 2634から 2640ページまで American Chemical Society (ACS)
1998/01 Development of Synthetic Organic Reaction through the Formation of Halocyclization Intermediate as an Activating Method
Osamu Kitagawa, Takeo Taguchi
 Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry 56巻 8号 661から 671ページまで
1997/12 NaH-mediated iodoaziridination reaction of N-allylic tosylamides
Osamu Kitagawa, Takashi Suzuki, Takeo Taguchi
 Tetrahedron Letters 38巻 48号 8371から 8374ページまで PERGAMON-ELSEVIER SCIENCE LTD
1997/10 Regiocontrolled Iodoaminocyclization Reaction of an Ambident Nucleophile Mediated by Basic Metallic Reagent
Masao Fujita, Osamu Kitagawa, Takashi Suzuki, Takeo Taguchi
 The Journal of Organic Chemistry 62巻 21号 7330から 7335ページまで American Chemical Society (ACS)
1997/10 Catalytic Asymmetric Iodocarbocyclization Reaction of 4-Alkenylmalonates and Its Application to Enantiotopic Group Selective Reaction
Tadashi Inoue, Osamu Kitagawa, Akio Saito, Takeo Taguchi
 The Journal of Organic Chemistry 62巻 21号 7384から 7389ページまで American Chemical Society (ACS)
1997/06 An efficient synthesis of optically active axially chiral anilide and its application to iodine-mediated asymmetric Diels-Alder reaction
Osamu Kitagawa, Hirotaka Izawa, Takeo Taguchi, Motoo Shiro
 Tetrahedron Letters 38巻 25号 4447から 4450ページまで PERGAMON-ELSEVIER SCIENCE LTD
1997/05 Diastereoselective α-iodination reaction of 4-alkenylamide having a β-chiral center
Midori Okada, Osamu Kitagawa, Tokushi Hanano, Takeo Taguchi
 Tetrahedron 53巻 20号 6825から 6834ページまで PERGAMON-ELSEVIER SCIENCE LTD
1997/01 Regio-controlled iodoaminocyclization reaction of an ambident nucleophile mediated by LiAl(Ot-Bu)<inf>4</inf>
Osamu Kitagawa, Masao Fujita, Hua Li, Takeo Taguchi
 Tetrahedron Letters 38巻 4号 615から 618ページまで PERGAMON-ELSEVIER SCIENCE LTD
1997/01 Beckmann rearrangement of O-4-pentenyl oxime through N- bromosuccinimide-mediated activating process
Osamu Kitagawa, Masao Fujita, Midori Okada, Takeo Taguchi
 Chemical and Pharmaceutical Bulletin 45巻 1号 32から 35ページまで PHARMACEUTICAL SOC JAPAN
1997/01 Iodocarbocyclization reaction
Osamu Kitagawa, Tadashi Inoue, Takeo Taguchi
 Reviews on Heteroatom Chemistry 15巻 243から 262ページまで MYU K K
1996/06 A mild method for generation of p-methoxybenzyl cation through NIS-mediated activation of p-methoxybenzyl 4-pentenyl ether
Midori Okada, Osamu Kitagawa, Masao Fujita, Takeo Taguchi
 Tetrahedron 52巻 24号 8135から 8142ページまで PERGAMON-ELSEVIER SCIENCE LTD
1996/01 Diastereoselective Iodocarbocyclization Reaction of 2- or 3-Oxy-4-pentenylmalonate Derivatives
Tadashi Inoue, Osamu Kitagawa, Yoko Oda, Takeo Taguchi
 The Journal of Organic Chemistry 61巻 23号 8256から 8263ページまで American Chemical Society (ACS)
1995/12 Catalytic asymmetric iodocarbocyclization reaction
Tadashi Inoue, Osamu Kitagawa, Orie Ochiai, Motoo Shiro, Takeo Taguchi
 Tetrahedron Letters 36巻 51号 9333から 9336ページまで PERGAMON-ELSEVIER SCIENCE LTD
1995/11 A Mild and Highly Chemoselective .alpha.-Iodination of N-Allylic Carboxamides and Lactams
Osamu Kitagawa, Norihiko Kikuchi, Tokushi Hanano, Katsuyuki Aoki, Tomomi Yamazaki, Midori Okada, Takeo Taguchi
 The Journal of Organic Chemistry 60巻 22号 7161から 7165ページまで American Chemical Society (ACS)
1995/05 Structural Analysis of .beta.-Turn Mimics Containing a Substituted 6-Aminocaproic Acid Linker
Osamu Kitagawa, David Vander Velde, Dinah Dutta, Martha Morton, Fusao Takusagawa, Jeffrey Aube
 Journal of the American Chemical Society 117巻 19号 5169から 5178ページまで American Chemical Society (ACS)
1995/03 Diastereoselective iodocarbocyclization reaction of 8-phenylmenthyl allylmalonate: An efficient preparation of a synthetic intermediate of cyclopropane amino acids
Tadashi Inoue, Osamu Kitagawa, Orie Ochiai, Takeo Taguchi
 Tetrahedron: Asymmetry 6巻 3号 691から 692ページまで
1995/02 Enantioselective iodocarbocyclization of 4-alkenylmalonate derivatives using a chiral titanium complex
Tadashi Inoue, Osamu Kitagawa, Shigeyuki Kurumizawa, Orie Ochiai, Takeo Taguchi
 Tetrahedron Letters 36巻 9号 1479から 1482ページまで PERGAMON-ELSEVIER SCIENCE LTD
1995/01 Diels-Alder reaction of N-allylic enamides and lactam derivatives through iodine mediated activation
Osamu Kitagawa, Katsuyuki Aoki, Tadashi Inoue, Takeo Taguchi
 Tetrahedron Letters 36巻 4号 593から 596ページまで PERGAMON-ELSEVIER SCIENCE LTD
1995/01 Iodocarbocyclization reaction
Takeo Taguchi, Osamu Kitagawa, Tadashi Inoue
 Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry 53巻 770から 779ページまで
1994/02 Diastereoselective iodocarbocyclization of 4-pentenylmalonate derivatives: Application to cyclosarkomycin synthesis
Osamu Kitagawa, Tadashi Inoue, Takeo Taguchi
 Tetrahedron Letters 35巻 7号 1059から 1062ページまで PERGAMON-ELSEVIER SCIENCE LTD
1993/05 Ionic iodocarbocyclization reactions of 4-alkenyl- and 4-alkynylmalonate derivatives
Osamu Kitagawa, Tadashi Inoue, Keiko Hirano, Takeo Taguchi
 The Journal of Organic Chemistry 58巻 11号 3106から 3112ページまで American Chemical Society (ACS)
1993/03 Asymmetric synthesis of α-amino acids through α-iodination of chiral unsaturated carboxamides and stereoselective iodolactonization
Osamu Kitagawa, Tokushi Hanano, Norihiko Kikuchi, Takeo Taguchi
 Tetrahedron Letters 34巻 13号 2165から 2168ページまで PERGAMON-ELSEVIER SCIENCE LTD
1992/04 Ionic iodocarbocyclization reaction
Osamu Kitagawa, Tadashi Inoue, Takeo Taguchi
 Tetrahedron Letters 33巻 16号 2167から 2170ページまで PERGAMON-ELSEVIER SCIENCE LTD
1992/03 A facile α-iodination reaction of unsaturated amides
Osamu Kitagawa, Tokushi Hanano, Tatsuya Hirata, Tadashi Inoue, Takeo Taguchi
 Tetrahedron Letters 33巻 10号 1299から 1302ページまで Elsevier BV
1992/01 Enantioselective halocyclization reaction using a chiral titanium complex
Osamu Kitagawa, Tokushi Hanano, Kiyoshi Tanabe, Motoo Shiro, Takeo Taguchi
 Journal of the Chemical Society, Chemical Communications 14号 1005から 1005ページまで Royal Society of Chemistry (RSC)
1991/01 EFFECT OF TI(OI-PR)4 ON STEREOSELECTIVITY OF HALOCYCLIZATION OF 2-SUBSTITUTED 4-PENTENOIC ACID AND 4-PENTEN-1-OL
O KITAGAWA, T SATO, T TAGUCHI
 CHEMISTRY LETTERS 1号 177から 180ページまで CHEMICAL SOC JAPAN
1990/08 MICHAEL ADDITION OF 2,2-DIFLUOROKETENE SILYL ACETAL - PREPARATION OF 4,4-DIFLUOROGLUTAMIC ACID AND 5,5-DIFLUOROLYSINE
O KITAGAWA, A HASHIMOTO, Y KOBAYASHI, T TAGUCHI
 CHEMISTRY LETTERS 8号 1307から 1310ページまで CHEMICAL SOC JAPAN
1990/06 ATOM-TRANSFER REACTION OF DIFLUOROIODOACETATE
O KITAGAWA, A MIURA, Y KOBAYASHI, T TAGUCHI
 CHEMISTRY LETTERS 6号 1011から 1014ページまで CHEMICAL SOC JAPAN
1989/03 (METHYL DIFLUOROACETATE)COPPER REAGENT - REMARKABLE SOLVENT EFFECT ON THE F-19-NMR SPECTRUM, STABILITY AND REACTIVITY
O KITAGAWA, T TAGUCHI, Y KOBAYASHI
 CHEMISTRY LETTERS 3号 389から 392ページまで CHEMICAL SOC JAPAN
1988/01 Synthesis of 3,3-difluoro-2-azetidinones and 2,3-dideoxy-2,2-difluoro-3-amino-sugars through the reformatsky reaction of difluoroacetate with imine
Takeo Taguchi, Osamu Kitagawa, Yoshimitsu Suda, Shinji Ohkawa, Akihiro Hashimoto, Yohichi Iitaka, Yoshiro Kobayashi
 Tetrahedron Letters 29巻 41号 5291から 5294ページまで PERGAMON-ELSEVIER SCIENCE LTD
1988/01 Aldol reaction of iododifluoroacetate-Zn and 2,2-difluoroketene silyl acetal
Osamu Kitagawa, Takeo Taguchi, Yoshiro Kobayashi
 Tetrahedron Letters 29巻 15号 1803から 1806ページまで PERGAMON-ELSEVIER SCIENCE LTD
1987/11 PREPARATION OF 2,2-DIFLUOROESTERS BY IODODIFLUOROACETATE-METAL WITH ELECTROPHILES
T TAGUCHI, O KITAGAWA, A IGARASHI, H UEHARA, Y KOBAYASHI
 JOURNAL OF PHARMACEUTICAL SCIENCES 76巻 11号 AMER PHARMACEUTICAL ASSN
1986/01 Synthesis of 2,2-difluoroesters by iododifluoroacetate-copper with organic halides
Takeo Taguchi, Osamu Kitagawa, Tsutomu Morikawa, Tohru Nishiwaki, Hideya Uehara, Hatsumi Endo, Yoshiro Kobayashi
 Tetrahedron Letters 27巻 50号 6103から 6106ページまで PERGAMON-ELSEVIER SCIENCE LTD
1985/01 Studies on Organic Fluorine Compounds. XLVII. Synthesis of Trifluoromethylated Sugars through the Aldol Reaction of 2-Trimethylsilyloxy-4-trifluoromethylfuran
Kosuke Kawada, Osamu Kitagawa, Takeo Taguchi, Yuji Hanzawa, Yoshiro Kobayashi
 Chemical and Pharmaceutical Bulletin 33巻 10号 4216から 4222ページまで PHARMACEUTICAL SOC JAPAN
1985/01 Studies on Organic Fluorine Compounds. XLV. Synthesis and Regioselective Substitution Reaction of 3-Trifluoromethylfuran
Kosuke Kawada, Osamu Kitagawa, Yoshiro Kobayashi
 Chemical and Pharmaceutical Bulletin 33巻 9号 3670から 3674ページまで PHARMACEUTICAL SOC JAPAN
1985/01 SYNTHESES OF BETA,BETA-DIFLUOROCARBOXYLIC ACID-DERIVATIVES THROUGH THE CLAISEN REARRANGEMENT OF 1,1-DIFLUORO-1-ALKEN-3-OLS
T TAGUCHI, T MORIKAWA, O KITAGAWA, T MISHIMA, Y KOBAYASHI
 CHEMICAL & PHARMACEUTICAL BULLETIN 33巻 11号 5137から 5140ページまで PHARMACEUTICAL SOC JAPAN