Osamu Kitagawa

2003

Carbocyclization reactions of terminally difluorinated alkenyl active methine compounds mediated by SnCl₄ and amine

Saito, A., Okada, M., Nakamura, Y., Kitagawa, O., Horikawa, H. & Taguchi, T., 2003 9月 1, In: Journal of Fluorine Chemistry. 123, 1, p. 75-80 6 p.

研究成果: Article › 査読

29 被引用数 (Scopus)

Iodine atom transfer [3 + 2] cycloaddition reaction with electron-rich alkenes using N-tosyliodoaziridine derivatives as novel azahomoallyl radical precursors

Kitagawa, O., Miyaji, S., Yamada, Y., Fujiwara, H. & Taguchi, T., 2003 4月 18, In: Journal of Organic Chemistry. 68, 8, p. 3184-3189 6 p.

研究成果: Article › 査読

33 被引用数 (Scopus)

Iodine Atom Transfer [3+2] Cycloaddition Reaction with Electron-rich Alkenes using N-Tosyl Iodoaziridine Derivatives as Novel Azahomoallyl Radical Precursors.

Kitagawa, O., Miyaji, S., Yamada, Y., Fujiwara, H. & Taguchi, T., 2003 2月 1, In: J. Org. Chem.. 68, p. 3184-3189

研究成果: Article › 査読

Synthesis of Optically Active Atropisomeric Anilide Derivatives through Diastereoselective N-Allylation with a Chiral Pd- -Allyl Catalyst.

Kitagawa, O., Takahashi, M., Kohriyama, M. & Taguchi, T., 2003 10月 4, In: J. Org. Chem.. 68, p. 9851-9853

研究成果: Article › 査読

Synthesis of Optically Active Atropisomeric Anilide Derivatives through Diastereoselective N-Allylation with a Chiral Pd-π-Allyl Catalyst

Kitagawa, O., Takahashi, M., Kohriyama, M. & Taguchi, T., 2003 12月 12, In: Journal of Organic Chemistry. 68, 25, p. 9851-9853 3 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

2004

Catalytic Asymmetric Synthesis of Vicinal Diamine Derivatives through Enantioselective N-Allylation using Chiral -Allyl Pd-Catalyst.

Kitagawa, O., Yotsumoto, K., Kohriyama, M., Dobashi, Y. & Taguchi, T., 2004 10月 1, In: Org. Lett.. 6, p. 3605-3607

研究成果: Article › 査読

Catalytic asymmetric synthesis of vicinal diamine derivatives through enantioselective N-allylation using chiral π-allyl Pd-catalyst

Kitagawa, O., Yotsumoto, K., Kohriyama, M., Dobashi, Y. & Taguchi, T., 2004 9月 30, In: Organic Letters. 6, 20, p. 3605-3607 3 p.

研究成果: Article › 査読

32 被引用数 (Scopus)

Iodine Atom Transfer [3+2] Cycloaddition Reaction with Alkenes Using Unsymmetrical Allylated Active Methine Radicals.

Kitagawa, O., Miyaji, S., Sakuma, C. & Taguchi, T., 2004 3月 1, In: J. Org. Chem.. 69, p. 2607-2610

研究成果: Article › 査読

10 被引用数 (Scopus)

Stereoselective Iodine Atom Transfer [3 + 2] Cycloaddition Reaction with Alkenes Using Unsymmetrical Allylated Active Methine Radicals

Kitagawa, O., Miyaji, S., Sakuma, C. & Taguchi, T., 2004 4月 2, In: Journal of Organic Chemistry. 69, 7, p. 2607-2610 4 p.

研究成果: Article › 査読

10 被引用数 (Scopus)

2005

Efficient synthesis of optically active atropisomeric anilides through catalytic asymmetric N-arylation reaction

Kitagawa, O., Takahashi, M., Yoshikawa, M. & Taguchi, T., 2005 3月 23, In: Journal of the American Chemical Society. 127, 11, p. 3676-3677 2 p.

研究成果: Article › 査読

103 被引用数 (Scopus)

Efficient Synthesis of Optically Active Atropisomeric Anilides through Catalytic Asymmetric N-Arylation Reaction.

Kitagawa, O., Takahashi, M., Yoshikawa, M. & Taguchi, T., 2005 3月 1, In: J. Am. Chem. Soc.. 127, p. 3676-3677

研究成果: Article › 査読

2006

Catalytic asymmetric desymmetrization of meso-diamide derivatives through enantioselective N-allylation with a chiral π-allyl Pd catalyst: Improvement and reversal of the enantioselectivity

Kitagawa, O., Matsuo, S., Yotsumoto, K. & Taguchi, T., 2006 3月 17, In: Journal of Organic Chemistry. 71, 6, p. 2524-2527 4 p.

研究成果: Article › 査読

23 被引用数 (Scopus)

Catalytic Asymmetyric Desymmetrization of meso-Diamide derivatives through Enantioselective N-Allylation Using Chiral -Allyl Pd Catalyst: Improvement and Reversal of the Enantioselectivity.

Kitagawa, O., Matsuo, S., Yotsumoto, K. & Taguchi, T., 2006 2月 1, In: J. Org. Chem.. 71, p. 2524-2527

研究成果: Article › 査読

Highly enantioselective synthesis of atropisomeric anilide derivatives through catalytic asymmetric N-arylation: Conformational analysis and application to asymmetric enolate chemistry

Kitagawa, O., Yoshikawa, M., Tanabe, H., Morita, T., Takahashi, M., Dobashi, Y. & Taguchi, T., 2006 10月 4, In: Journal of the American Chemical Society. 128, 39, p. 12923-12931 9 p.

研究成果: Article › 査読

123 被引用数 (Scopus)

Highly Enantioselective Synthesis of Atropisomeric Anilide Derivatives through Catalytic Asymmetric N-Arylation: Conformational Analysis and Application to Asymmetric Enolate Chemistry.

Kitagawa, O., Yoshikawa, M., Tanabe, H., Morita, T., Takahashi, M., Dobashi, Y. & Taguchi, T., 2006 9月 7, In: J. Am. Chem. Soc.. 128, p. 12923-12931

研究成果: Article › 査読

123 被引用数 (Scopus)

2007

Highly Enantioselctive Synthesis of Atropisomeric Lactams through Catalytic Asymmetric Buchwald-Hartwig Amination

Kitagawa, O., Tanabe, H. & Taguchi, T., 2007 8月 23, In: Default journal.

研究成果: Article › 査読

2008

Catalytic enantioselective synthesis of key intermediates for NET inhibitors using atropisomeric lactam chemistry

Kitagawa, O., Kurihara, D., Tanabe, H., Shibuya, T. & Taguchi, T., 2008 1月 14, In: Tetrahedron Letters. 49, 3, p. 471-474 4 p.

研究成果: Article › 査読

31 被引用数 (Scopus)

Stereoselective synthesis of separable amide rotamers using p-allyl-Pd catalyst and their thermodynamic behavior

Ototake, N., Taguchi, T. & Kitagawa, O., 2008 8月 1, In: Tetrahedron Lett.. 49, p. 5458-5460

研究成果: Article › 査読

Stereoselective synthesis of separable amide rotamers using π-allyl-Pd catalyst and their thermodynamic behavior

Ototake, N., Taguchi, T. & Kitagawa, O., 2008 9月 15, In: Tetrahedron Letters. 49, 38, p. 5458-5460 3 p.

研究成果: Article › 査読

9 被引用数 (Scopus)

2009

Highly selective stereodivergent synthesis of separable amide rotamers, by using Pd chemistry, and their thermodynamic behavior

Ototake, N., Nakamura, M., Dobashi, Y., Fukaya, H. & Kitagawa, O., 2009 5月 11, In: Chemistry - A European Journal. 15, 20, p. 5090-5095 6 p.

研究成果: Article › 査読

16 被引用数 (Scopus)

Highly Selective Stereodivergent Synthesis of Separable Amide Rotamers Using Pd Chemistry and Their Thermodynamic Behaviors.

Ototake, N., Nakamura, M., Dobashi, Y., Fukaya, H. & Kitagawa, O., 2009 5月 1, In: Chem. Eur. J.. 15, p. 5090-5095

研究成果: Article › 査読

2010

Atropisomeric lactam chemistry: catalytic enantioselective synthesis, application to asymmetric enolate chemistry and synthesis of key intermediates for NET inhibitors

Takahashi, M., Tanabe, H., Nakamura, T., Kuribara, D., Yamazaki, T. & Kitagawa, O., 2010 1月 2, In: Tetrahedron. 66, 1, p. 288-296 9 p.

研究成果: Article › 査読

51 被引用数 (Scopus)

Atropisomeric lactam chemistry: catalytic enantioselective synthesis, application to asymmetric enolate chemistry and synthesis of key intermediates for NET inhibitors

Takahashi, M., Tanabe, H., Nakamura, T., Kuribara, D., Yamazaki, T. & Kitagawa, O., 2010 1月 5, In: Tetrahedron. 66, p. 288-296

研究成果: Article › 査読

51 被引用数 (Scopus)

Catalytic enantioselective synthesis of atropisomeric indoles with an N-C chiral axis

Ototake, N., Morimoto, Y., Mokuya, A., Fukaya, H., Shida, Y. & Kitagawa, O., 2010 6月 18, In: Chemistry - A European Journal. 16, 23, p. 6752-6755 4 p.

研究成果: Article › 査読

88 被引用数 (Scopus)

Catalytic Enantioselective Synthesis of Atropisomeric Indoles with an N-C Chiral Axis.

Ototake, N., Morimoto, Y., Mokuya, A., Fukaya, H., Shida, Y. & Kitagawa, O., 2010 5月 13, In: Chem. Eur. J.. 16, p. 6752-6755

研究成果: Article › 査読

87 被引用数 (Scopus)

2011

Catalytic enantioselective synthesis of novel atropisomeric compounds having an N-C chiral axis and their application to asymmetric reaction

Takahashi, M. & Kitagawa, O., 2011 9月, In: Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry. 69, 9, p. 985-993 9 p.

研究成果: Article › 査読

14 被引用数 (Scopus)

Intramolecular Diels-Alder reaction of N-allyl 2-furoyl amides: Effect of steric strain and amide rotational isomerism

Nakamura, M., Takahashi, I., Yamada, S., Dobashi, Y. & Kitagawa, O., 2011 1月 5, In: Tetrahedron Letters. 52, 1, p. 53-55 3 p.

研究成果: Article › 査読

20 被引用数 (Scopus)

Intramolecular Diels-Alder Reaction of N-Allyl 2-Furoyl Amides: Effect of Steric Strain and Amide Rotational Isomerism

Nakamura, M., Takahashi, I., Yamada, S., Dobashi, Y. & Kitagawa, O., 2011 1月 1, In: Tetrahedron Lett. 52, p. 53-55

研究成果: Article › 査読

20 被引用数 (Scopus)

Notable structural property of 2,4,6-Tri- tert -butylanilide enolates: Interconversion between the rotamers and their reactivity

Ohnishi, Y., Sakai, M., Nakao, S. & Kitagawa, O., 2011 6月 3, In: Organic Letters. 13, 11, p. 2840-2843 4 p.

研究成果: Article › 査読

8 被引用数 (Scopus)

Notable Structural Property of 2,4,6-Tri-tert-butylanilide Enolates: Interconversion between the Rotamers and Their Reactivity

Ohnishi, Y., Sakai, M., Nakao, S. & Kitagawa, O., 2011 5月 20, In: Organic Letters. 13, p. 2840-2843

研究成果: Article › 査読

8 被引用数 (Scopus)

2012

Catalytic enantioselective synthesis of atropisomeric 2-aryl-4-quinolinone derivatives with an N-C chiral axis

Takahashi, I., Morita, F., Kusagaya, S., Fukaya, H. & Kitagawa, O., 2012 12月 15, In: Tetrahedron: Asymmetry. 23, p. 1657-1662

研究成果: Article › 査読

35 被引用数 (Scopus)

Catalytic enantioselective synthesis of atropisomeric 2-aryl-4-quinolinone derivatives with an N-C chiral axis

Takahashi, I., Morita, F., Kusagaya, S., Fukaya, H. & Kitagawa, O., 2012 12月 31, In: Tetrahedron Asymmetry. 23, 24, p. 1657-1662 6 p.

研究成果: Article › 査読

35 被引用数 (Scopus)

Catalytic Enantioselective Synthesis of Atropisomeric 4-Quinolinones with an N-C Chiral axis

Takahashi, I., Fumika, F., Morita, M., Izumi, S. & Kitagawa, O., 2012 10月 30, In: Default journal.

研究成果: Article › 査読

Enantiomer Enrichment of Non-racemic Chiral Amine Derivatives through Achiral Chromatography

Tateishi, K., Nakamura, T., Tsukagoshi, S. & Kitagawa, O., 2012 5月 17, In: Default journal.

研究成果: Article › 査読

Reversible Interconversion between Rotational Isomers of 2,4,6-Tri-tert-butylanilides

Tsukagoshi, S., Yusuke, Y., Ohnishi, O. & Kitagawa, O., 2012 10月 30, In: Default journal.

研究成果: Article › 査読

Self-disproportionation of enantiomers of non-racemic chiral amine derivatives through achiral chromatography

Nakamura, T., Tateishi, K., Tsukagoshi, S., Hashimoto, S., Watanabe, S., Soloshonok, V. A., Aceña, J. L. & Kitagawa, O., 2012 5月 27, In: Tetrahedron. 68, 21, p. 4013-4017 5 p.

研究成果: Article › 査読

56 被引用数 (Scopus)

Self-disproportionation of enantiomers via achiral chromatography: A warning and an extra dimension in optical purifications

Soloshonok, V. A., Roussel, C., Kitagawa, O. & Sorochinskya, A. E., 2012 5月 15, In: Chemical Society Reviews. 41, 11, p. 4180-4188 9 p.

研究成果: Article › 査読

130 被引用数 (Scopus)

Self-disproportionation of enantiomers via achiral chromatography: a warning and an extra dimension in optical purifications

Soloshono, V., Roussel, C., Kitagawa, O., Alex, A. & Sorochinsky, E., 2012 6月 2, In: Chem. Soc. Rev.. 41, p. 4180-4188

研究成果: Article › 査読

130 被引用数 (Scopus)

Studies on rotational barriers of N-C axially chiral compounds: Increase in the rotational barrier by aromatization

Suzumura, N., Kageyama, M., Kamimura, D., Inagaki, T., Dobashi, Y., Hasegawa, H., Fukaya, H. & Kitagawa, O., 2012 8月 15, In: Tetrahedron Letters. 53, 33, p. 4332-4336 5 p.

研究成果: Article › 査読

15 被引用数 (Scopus)

Studies on rotational barriers of N-C axially chiral compounds: increase in the rotational barrier by aromatization

Suzumura, N., Kageyama, M., Kamimura, D., Inagak, T., Dobashi, Y., Hasegawa, H., Fukaya, H. & Kitagawa, O., 2012 8月 1, In: Tetrahedron Lett. 53, p. 4332-4336

研究成果: Article › 査読

15 被引用数 (Scopus)

Study on Rotational Barrier of N-C Axially Chiral Compounds: Remarkable Increase in the ROtational Barrier by Aromatization

Suzumura, N., Kageyama, M., Dobashi, Y. & Kitagawa, O., 2012 5月 17, In: Default journal.

研究成果: Article › 査読

2013

Chiral initiator-induces self-disproportionation of enantiomers via achiral chromatography: Application to enantiomer separation of racemate

Tateishi, K., Tsukagoshi, S., Nakamura, T., Watanabe, S., Soloshonok, V. A. & Kitagawa, O., 2013 9月 18, In: Tetrahedron Letters. 54, 38, p. 5220-5223 4 p.

研究成果: Article › 査読

20 被引用数 (Scopus)

Rotational isomerism in 2,4,6-tri-tert-butylanilides

Ototake, N., Takahashi, I., Tsukagoshi, S., Maeda, T. & Kitagawa, O., 2013 1月 21, In: Tetrahedron. 69, 3, p. 1013-1016 4 p.

研究成果: Article › 査読

1 被引用数 (Scopus)

Unique structural properties of 2,4,6-tri-tert-butylanilide: Isomerization and switching between separable amide rotamers through the reaction of anilide enolates

Tsukagoshi, S., Ototake, N., Ohnishi, Y., Shimizu, M. & Kitagawa, O., 2013 5月 17, In: Chemistry - A European Journal. 19, 21, p. 6845-6850 6 p.

研究成果: Article › 査読

4 被引用数 (Scopus)

2015

A comprehensive examination of the self-disproportionation of enantiomers (SDE) of chiral amides via achiral, laboratory-routine, gravity-driven column chromatography

Suzuki, Y., Han, J., Kitagawa, O., Aceña, J. L., Klika, K. D. & Soloshonok, V. A., 2015, In: RSC Advances. 5, 4, p. 2988-2993 6 p.

研究成果: Article › 査読

49 被引用数 (Scopus)

Relationship between rotational barriers and structures in N-C axially chiral 3,4-dihydroquinolin-2-one and 3,4-dihydrobenzoquinolin-2-one

Suzuki, Y., Takahashi, I., Dobashi, Y., Hasegawa, H., Roussel, C. & Kitagawa, O., 2015 1月 1, In: Tetrahedron Letters. 56, 1, p. 132-135 4 p.

研究成果: Article › 査読

9 被引用数 (Scopus)

The synthesis of optically active N-C axially chiral tetrahydroquinoline and its response to an acid-accelerated molecular rotor

Suzuki, Y., Kageyama, M., Morisawa, R., Dobashi, Y., Hasegawa, H., Yokojima, S. & Kitagawa, O., 2015 7月 18, In: Chemical Communications. 51, 56, p. 11229-11232 4 p.

研究成果: Article › 査読

15 被引用数 (Scopus)

2016

Catalytic Enantioselective Synthesis of N-C Axially Chiral Mebroqualone and Its Derivatives through Reductive Asymmetric Desymmetrization

Hirai, M., Terada, S., Yoshida, H., Ebine, K., Hirata, T. & Kitagawa, O., 2016 11月 4, In: Organic Letters. 18, 21, p. 5700-5703 4 p.

研究成果: Article › 査読

40 被引用数 (Scopus)

Catalytic Enantioselective Synthesis of N-C Axially Chiral Phenanthridin-6-one Derivatives

Hirata, T., Takahashi, I., Suzuki, Y., Yoshida, H., Hasegawa, H. & Kitagawa, O., 2016 1月 4, In: Journal of Organic Chemistry. 81, 1, p. 318-323 6 p.

研究成果: Article › 査読

35 被引用数 (Scopus)

Chiral additive induced self-disproportionation of enantiomers under MPLC conditions: Preparation of enantiomerically pure samples of 1-(aryl)ethylamines from racemates

Goto, M., Tateishi, K., Ebine, K., Soloshonok, V. A., Roussel, C. & Kitagawa, O., 2016 5月 1, In: Tetrahedron Asymmetry. 27, 7-8, p. 317-321 5 p.

研究成果: Article › 査読

13 被引用数 (Scopus)

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