• 4441 Citations
  • 42 h-Index
1985 …2019

Research output per year

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Research Output

  • 4441 Citations
  • 42 h-Index
  • 160 Article
  • 3 Review article
  • 2 Comment/debate
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Article

(Methyl difluoroacetate)copper Reagent. Remarkable Solvent Effect on the 19F-NMR Spectrum, Stability and Reactivity.

Kitagawa, O., Taguchi, T. & Kobayashi, Y., 1989 Mar 10, In : Chem. Lett.. p. 389-392

Research output: Contribution to journalArticle

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.

Research output: Contribution to journalArticle

38 Citations (Scopus)

A Facile -Iodination Reaction of Unsaturated Amides.

Kitagawa, O., Hanano, T., Inoue, T. & Taguchi, T., 1992 Feb 1, In : Tetrahedron Lett.. 33, p. 2167-2170

Research output: Contribution to journalArticle

A facile α-iodination reaction of unsaturated amides

Kitagawa, O., Hanano, T., Hirata, T., Inoue, T. & Taguchi, T., 1992 Mar 3, In : Tetrahedron Letters. 33, 10, p. 1299-1302 4 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Aldol reaction of iododifluoroacetate-Zn and 2,2-difluoroketene silyl acetal

Kitagawa, O., Taguchi, T. & Kobayashi, Y., 1988, In : Tetrahedron Letters. 29, 15, p. 1803-1806 4 p.

Research output: Contribution to journalArticle

114 Citations (Scopus)

Aldol Reaction of Iododifluoroacetate-Zn and 2,2-Difluoroketene Silyl Acetal.

Kitagawa, O., Taguchi, T. & Kobayashi, Y., 1988 Apr 10, In : Tetrahedron Lett.. 29, p. 1803-1806

Research output: Contribution to journalArticle

114 Citations (Scopus)

Alkaline metallic reagent-catalyzed hydrocarbocyclization reaction of various active methine compounds having an unactivated 4-alkynyl or allenyl group

Kitagawa, O., Suzuki, T., Fujiwara, H., Fujita, M. & Taguchi, T., 1999 Jun 11, In : Tetrahedron Letters. 40, 24, p. 4585-4588 4 p.

Research output: Contribution to journalArticle

23 Citations (Scopus)

Alkaline Metallic Reagent-catalyzed Hydrocarbocyclization Reaction of Various Active Methine Compounds Having an Unactivated 4-Alkynyl or Allenyl Group.

Kitagawa, O., Suzuki, T., Fujiwara, H., Fujita, M. & Taguchi, T., 1999 Jun 20, In : Tetrahedron Lett.. 40, p. 4585-4588

Research output: Contribution to journalArticle

23 Citations (Scopus)

A Mild and Highly Chemoselective -Iodination of N-Allylic Carboxamides and Lactams.

Kitagawa, O., Kikuchi, N., Hanano, T., Aoki, K., Yamazaki, T., Okada, M. & Taguchi, T., 1995 Aug 1, In : J. Org. Chem.. 60, p. 7161-7165

Research output: Contribution to journalArticle

A Mild and Highly Chemoselective α-Iodination of N-Allylic Carboxamides and Lactams

Kitagawa, O., Kikuchi, N., Hanano, T., Aoki, K., Yamazaki, T., Okada, M. & Taguchi, T., 1995 Nov 1, In : Journal of Organic Chemistry. 60, 22, p. 7161-7165 5 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

A mild method for generation of p-methoxybenzyl cation through NIS-mediated activation of p-methoxybenzyl 4-pentenyl ether

Okada, M., Kitagawa, O., Fujita, M. & Taguchi, T., 1996 Jun 10, In : Tetrahedron. 52, 24, p. 8135-8142 8 p.

Research output: Contribution to journalArticle

13 Citations (Scopus)

A Mild Method for Generation of p-Methoxybenzyl Cation through NIS-mediated Activation of p-Methoxybenzyl 4-Pentenyl Ether.

Okada, M., Kitagawa, O., Fujita, M. & Taguchi, T., 1996 Jul 10, In : Tetrahedron. 52, p. 8135-8142

Research output: Contribution to journalArticle

13 Citations (Scopus)

An efficient synthesis of optically active axially chiral anilide and its application to iodine-mediated asymmetric Diels-Alder reaction

Kitagawa, O., Izawa, H., Taguchi, T. & Shiro, M., 1997 Jun 23, In : Tetrahedron Letters. 38, 25, p. 4447-4450 4 p.

Research output: Contribution to journalArticle

72 Citations (Scopus)

An Efficient Synthesis of Optically Active Axially Chiral Anilide and Its Application to Iodine-mediated Asymmetric Diels-Alder Reaction.

Kitagawa, O., Izawa, H., Taguchi, T. & Shiro, M., 1997 Jun 9, In : Tetrahedron Lett.. 38, p. 4447-4450

Research output: Contribution to journalArticle

72 Citations (Scopus)

Asymetric Synthesis of -Amino Acids through -Iodination of Chiral Unsaturated Carboxamides and Stereoselective Iodolactonization.

Kitagawa, O., Hanano, T., Kikuchi, N. & Taguchi, T., 1993 Mar 1, In : Tetrahedron Lett.. 34, p. 2165-2168

Research output: Contribution to journalArticle

Asymmetric synthesis of α-amino acids through α-iodination of chiral unsaturated carboxamides and stereoselective iodolactonization

Kitagawa, O., Hanano, T., Kikuchi, N. & Taguchi, T., 1993 Mar 26, In : Tetrahedron Letters. 34, 13, p. 2165-2168 4 p.

Research output: Contribution to journalArticle

39 Citations (Scopus)

Atom-transfer Reaction of Difluoroiodoacetate.

Kitagawa, O., Miura, A., Kobayashi, Y. & Taguchi, T., 1990 Jun 10, In : Chem. Lett.. p. 1011-1014

Research output: Contribution to journalArticle

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 Jan 2, In : Tetrahedron. 66, 1, p. 288-296 9 p.

Research output: Contribution to journalArticle

45 Citations (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 Jan 5, In : Tetrahedron. 66, p. 288-296

Research output: Contribution to journalArticle

45 Citations (Scopus)

Beckmann rearrangement of O-4-pentenyl oxime through N- bromosuccinimide-mediated activating process

Kitagawa, O., Fujita, M., Okada, M. & Taguchi, T., 1997 Jan, In : Chemical and Pharmaceutical Bulletin. 45, 1, p. 32-35 4 p.

Research output: Contribution to journalArticle

Open Access
9 Citations (Scopus)

Beckmann Rearrangement of O-4-Pentenyl Oxime through N-Bromosuccinimide-mediated Activating Process.

Kitagawa, O., Fujita, M., Okada, M. & Taguchi, T., 1997 Jan 20, In : Chem. Pharm. Bull.. 45, p. 32-35

Research output: Contribution to journalArticle

9 Citations (Scopus)

Carbocyclization reaction of active methine compounds with unactivated alkenyl or alkynyl groups mediated by TiCl4-Et3N

Kitagawa, O., Suzuki, T., Inoue, T., Watanabe, Y. & Taguchi, T., 1998 Dec 11, In : Journal of Organic Chemistry. 63, 25, p. 9470-9475 6 p.

Research output: Contribution to journalArticle

70 Citations (Scopus)

Carbocyclization Reaction of Active Methine Compounds with Unactivated Alkenyl or Alkynyl Groups mediated by TiCl4-Et3N.

Kitagawa, O., Suzuki, T., Inoue, T., Watanabe, Y. & Taguchi, T., 1998 Nov 6, In : J. Org. Chem.. 63, p. 9470-9475

Research output: Contribution to journalArticle

70 Citations (Scopus)

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 Sep 1, In : Journal of Fluorine Chemistry. 123, 1, p. 75-80 6 p.

Research output: Contribution to journalArticle

26 Citations (Scopus)
18 Citations (Scopus)

Catalytic asymmetric iodocarbocyclization reaction

Inoue, T., Kitagawa, O., Ochiai, O., Shiro, M. & Taguchi, T., 1995 Dec 18, In : Tetrahedron Letters. 36, 51, p. 9333-9336 4 p.

Research output: Contribution to journalArticle

42 Citations (Scopus)

Catalytic Asymmetric Iodocarbocyclization Reaction.

Inoue, T., Kitagawa, O., Ochiai, O., Shiro, M. & Taguchi, T., 1995 Dec 15, In : Tetrahedron Lett.. 36, p. 9333-9336

Research output: Contribution to journalArticle

42 Citations (Scopus)

Catalytic Asymmetric Iodocarbocyclization Reaction of 4-Alkenylmalonates and Its Application to Enantiotopic Group Selective Reaction

Inoue, T., Kitagawa, O., Saito, A. & Taguchi, T., 1997 Jan 1, In : Journal of Organic Chemistry. 62, 21, p. 7384-7389 6 p.

Research output: Contribution to journalArticle

55 Citations (Scopus)

Catalytic Asymmetric Iodocarbocyclization Reaction of 4-Alkenylmalonates and Its Application to Enantiotopic Group Selective Reaction.

Inoue, T., Kitagawa, O., Saito, A. & Taguchi, T., 1997 Oct 15, In : J. Org. Chem.. 62, p. 7384-7389

Research output: Contribution to journalArticle

55 Citations (Scopus)

Catalytic asymmetric synthesis of optically active atropisomeric anilides through enantioselective N-allylation with chiral Pd-tol-BINAP catalyst

Kitagawa, O., Kohriyama, M. & Taguchi, T., 2002 Nov 29, In : Journal of Organic Chemistry. 67, 24, p. 8682-8684 3 p.

Research output: Contribution to journalArticle

59 Citations (Scopus)

Catalytic Asymmetric Synthesis of Optically Active Atropisomeric Anilides through Enantioselective N-Allylation with Chiral Pd-tol-BINAP Catalyst.

Kitagawa, O., Kohriyama, M. & Taguchi, T., 2002 Nov 30, In : J. Org. Chem.. 67, p. 8682-8684

Research output: Contribution to journalArticle

59 Citations (Scopus)

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 Oct 1, In : Org. Lett.. 6, p. 3605-3607

Research output: Contribution to journalArticle

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 Sep 30, In : Organic Letters. 6, 20, p. 3605-3607 3 p.

Research output: Contribution to journalArticle

28 Citations (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 Dec 15, In : Tetrahedron: Asymmetry. 23, p. 1657-1662

Research output: Contribution to journalArticle

24 Citations (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 Dec 31, In : Tetrahedron Asymmetry. 23, 24, p. 1657-1662 6 p.

Research output: Contribution to journalArticle

24 Citations (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 Oct 30, In : Default journal.

Research output: Contribution to journalArticle

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 Jun 18, In : Chemistry - A European Journal. 16, 23, p. 6752-6755 4 p.

Research output: Contribution to journalArticle

51 Citations (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 May 13, In : Chem. Eur. J.. 16, p. 6752-6755

Research output: Contribution to journalArticle

51 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

26 Citations (Scopus)

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 Nov 4, In : Organic Letters. 18, 21, p. 5700-5703 4 p.

Research output: Contribution to journalArticle

20 Citations (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 Jan 4, In : Journal of Organic Chemistry. 81, 1, p. 318-323 6 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Catalytic Enantioselective Synthesis of N-C Axially Chiral Sulfonamides through Chiral Palladium-Catalyzed N-Allylation

Kikuchi, Y., Nakamura, C., Matsuoka, M., Asami, R. & Kitagawa, O., 2019 Jun 21, In : Journal of Organic Chemistry. 84, 12, p. 8112-8120 9 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)
13 Citations (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 May 1, In : Tetrahedron Asymmetry. 27, 7-8, p. 317-321 5 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

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 Sep 18, In : Tetrahedron Letters. 54, 38, p. 5220-5223 4 p.

Research output: Contribution to journalArticle

18 Citations (Scopus)

Chirality-dependent halogen bonds in axially chiral quinazolin-4-one derivatives bearing: Ortho -halophenyl groups

Imai, T., Niijima, E., Terada, S., Wzorek, A., Soloshonok, V. A., Hori, A. & Kitagawa, O., 2019 Jan 1, In : CrystEngComm. 21, 22, p. 3385-3389 5 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Diastereoselective -Iodination Reaction of 4-Alkenylamide Having a -Chiral Center.

Okada, M., Kitagawa, O. & Hanano, T., 1997 May 10, In : Tetrahedron. 53, p. 6825-6834

Research output: Contribution to journalArticle

Diastereoselective iodocarbocyclization of 4-pentenylmalonate derivatives: Application to cyclosarkomycin synthesis

Kitagawa, O., Inoue, T. & Taguchi, T., 1994 Feb 14, In : Tetrahedron Letters. 35, 7, p. 1059-1062 4 p.

Research output: Contribution to journalArticle

24 Citations (Scopus)