If you made any changes in Pure these will be visible here soon.

Research Output 1985 2019

  • 4331 Citations
  • 41 h-Index
  • 163 Article
  • 2 Review article
Filter
Article
1985

Studies on Organic Fluorine Compounds. XLV. Synthesis and Regioselective Substitution Reaction of 3-Trifluoromethylfuran

KAWADA, KOSUKE., Kitagawa, O. & KOBAYASHI, YOSHIRO., 1985, In : Chemical and Pharmaceutical Bulletin. 33, 9, p. 3670-3674

Research output: Contribution to journalArticle

Fluorine Compounds
Substitution reactions
n-butyllithium
20 Citations (Scopus)

Studies on Organic Fluorine Compounds. XLVII. Synthesis of Trifluoromethylated Sugars through the Aldol Reaction of 2-Trimethylsilyloxy-4-trifluoromethylfuran

SAWADA, KOSUKE., Kitagawa, O., TAGUCHI, TAKEO., HANZAWA, YUJI., KOBAYASHI, YOSHIRO. & IITAKA, YOICHI., 1985, In : Chemical and Pharmaceutical Bulletin. 33, 10, p. 4216-4222

Research output: Contribution to journalArticle

Fluorine Compounds
Sugars
Lewis Acids
X ray analysis
Aldehydes
12 Citations (Scopus)

Synthesis and Regioselective Substitution Reaction of 3-Trifluoromethylfuran.

Kawada, K., Kitagawa, O. & Taguchi, T., 1985 Sep 1, In : Chem. Pharm. Bull.. 33, p. 3670-3674

Research output: Contribution to journalArticle

Synthesis of -Difluorocarboxylic Acid Derivatives through the Claisen Rearrangement of 1,1-Difluoro-1-alkane-3-ols.

Taguchi, T., Morikawa, T., Kitagawa, O., Mishima, T. & Kobayashi, Y., 1985 Nov 1, In : Chem. Pharm. Bull.. 33, p. 5137-5140

Research output: Contribution to journalArticle

Synthesis of Trifuluoromethylated Sugars through the Aldol Reaction of 2-Trimethylsiloxy-4-trifluoromethylfuran.

Kawada, K., Kitagawa, O., Taguchi, T., Hanzawa, Y., Kobayashi, Y. & Iitaka, Y., 1985 Oct 1, In : Chem. Pharm. Bull.. 33, p. 4216-4222

Research output: Contribution to journalArticle

Synthesis of β,β-Difluorocarboxylic Acid Derivatives through the Claisen Rearrangement of 1,1-Difluoro-1-alkane-3-ols.

Taguchi, T., Morikawa, T., Kitagawa, O., Mishima, T. & Kobayashi, Y., 1985, In : Chemical and Pharmaceutical Bulletin. 33, 11, p. 5137-5140

Research output: Contribution to journalArticle

1986
102 Citations (Scopus)

Synthesis of 2,2-difluoroesters by iododifluoroacetate-copper with organic halides

Taguchi, T., Kitagawa, O., Morikawa, T., Nishiwaki, T., Uehara, H., Endo, H. & Kobayashi, Y., 1986, In : Tetrahedron Letters. 27, 50, p. 6103-6106 4 p.

Research output: Contribution to journalArticle

Iodides
Copper
102 Citations (Scopus)

Synthesis of 2,2-Difluoroesters by Iododifluoroacetate-Copper with Organic Halides.

Taguchi, T., Kitagawa, O., Morikawa, T., Nishiwaki, T., Uehara, H., Endo, H. & Kobayashi, Y., 1986 Nov 10, In : Tetrahedron Lett.. 27, p. 6103-6106

Research output: Contribution to journalArticle

1988
111 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

Acetals
Iodides
Galactose
Aldehydes
3-hydroxybutanal
111 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

106 Citations (Scopus)

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

Taguchi, T., Kitagawa, O., Suda, Y., Ohkawa, S., Hashimoto, A., Iitaka, Y. & Kobayashi, Y., 1988, In : Tetrahedron Letters. 29, 41, p. 5291-5294 4 p.

Research output: Contribution to journalArticle

Amino Sugars
Imines
Acetals
Derivatives
Esters

Synthesis of 3,3-Difluoro-2-Azetidinones and 2,3-Dideoxy-2,2-difluoro-3-aminosugars through the Reformatsky Reaction of Difluoroacetate with Imine.

Taguchi, T., Kitagawa, O., Suda, Y., Ohkawa, S., Hashimoto, A., Iitaka, Y. & Kobayashi, Y., 1988 Oct 10, In : Tetrahedron Lett.. 29, p. 5291-5294

Research output: Contribution to journalArticle

1989

(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

1990

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

Michael Addition of 2,2-Difluoroketene Silyl Acetal. Preparation of 4,4-Difluoroglutamic Acid and 5,5-Difluorolysine.

Kitagawa, O., Hashimoto, A., Kobayashi, Y. & Taguchi, T., 1990 Aug 10, In : Chem. Lett.. p. 1307-1310

Research output: Contribution to journalArticle

1991

Effect of Ti(Oi-Pr)4 on Stereoselectiviy of Halocyclization of 2-Substituted 4-Pentenoic Acid and 4-Penten-1-ol.

Kitagawa, O., Sato, T. & Taguchi, T., 1991 Jan 10, In : Chem. Lett.. p. 177-180

Research output: Contribution to journalArticle

1992

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

23 Citations (Scopus)

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

Amides
gamma-collidine
62 Citations (Scopus)

Enantioselective halocyclization reaction using a chiral titanium complex

Kitagawa, O., Hanano, T., Tanabe, K., Shiro, M. & Taguchi, T., 1992, In : Journal of the Chemical Society, Chemical Communications. 14, p. 1005-1007 3 p.

Research output: Contribution to journalArticle

glycolic acid
Titanium
Acids
62 Citations (Scopus)

Enantioselective Halocyclization Reaction using a Chiral Titanium Complex.

Kitagawa, O., Hanano, T., Tanabe, K., Shiro, M. & Taguchi, T., 1992 May 15, In : Chem. Commun.. p. 1005-1007

Research output: Contribution to journalArticle

35 Citations (Scopus)

Ionic iodocarbocyclization reaction

Kitagawa, O., Inoue, T. & Taguchi, T., 1992 Apr 14, In : Tetrahedron Letters. 33, 16, p. 2167-2170 4 p.

Research output: Contribution to journalArticle

35 Citations (Scopus)

Ionic Iodocarbocyclization Reaction.

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

Research output: Contribution to journalArticle

1993

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

38 Citations (Scopus)

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

Iodides
Lactones
Amides
Amino Acids
pyrrolidine
55 Citations (Scopus)

Ionic iodocarbocyclization reactions of 4-alkenyl- and 4-alkynylmalonate derivatives

Kitagawa, O., Inoue, T., Hirano, K. & Taguchi, T., 1993, In : Journal of Organic Chemistry. 58, 11, p. 3106-3112 7 p.

Research output: Contribution to journalArticle

Malonates
Derivatives
Cyclopentanes
Cyclization
Spiro Compounds
55 Citations (Scopus)

Ionic Iodocarbocyclization Reactions of 4-Alkenyl- and 4-Alkynylmalonate Derivatives.

Kitagawa, O., Inoue, T., Hirano, K. & Taguchi, T., 1993 Mar 1, In : J. Org. Chem.. 58, p. 3106-3112

Research output: Contribution to journalArticle

1994
24 Citations (Scopus)

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

Derivatives
24 Citations (Scopus)

Diastereoselective Iodocarbocyclization of 4-Pentenylmalonate Derivatives: Application to Cyclosarkomycin Synthesis.

Kitagawa, O., Inoue, T. & Taguchi, T., 1994 Mar 1, In : Tetrahedron Lett.. 35, p. 1059-1062

Research output: Contribution to journalArticle

1995

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

18 Citations (Scopus)

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, In : The Journal of Organic Chemistry. 60, 22, p. 7161-7165 5 p.

Research output: Contribution to journalArticle

Lactams
Amides
Stereoselectivity
Iodides
Iodine
42 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

Enantioselectivity
Titanium
Derivatives
Cyclopentanes
X rays
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

24 Citations (Scopus)
cyclopropane
amino acids
Amino acids
esters
Esters
24 Citations (Scopus)
23 Citations (Scopus)

Diels-Alder reaction of N-allylic enamides and lactam derivatives through iodine mediated activation

Kitagawa, O., Aoki, K., Inoue, T. & Taguchi, T., 1995 Jan 23, In : Tetrahedron Letters. 36, 4, p. 593-596 4 p.

Research output: Contribution to journalArticle

Lactams
Lewis Acids
Iodine
Chemical activation
Derivatives
23 Citations (Scopus)

Diels-Alder Reaction of N-Allylic Enamides and Lactam Derivatives through Iodine-mediated Activation.

Kitagawa, O., Aoki, K., Inoue, T. & Taguchi, T., 1995 Feb 15, In : Tetrahedron Lett.. 36, p. 593-596

Research output: Contribution to journalArticle

26 Citations (Scopus)

Enantioselective iodocarbocyclization of 4-alkenylmalonate derivatives using a chiral titanium complex

Inoue, T., Kitagawa, O., Kurumizawa, S., Ochiai, O. & Taguchi, T., 1995 Feb 27, In : Tetrahedron Letters. 36, 9, p. 1479-1482 4 p.

Research output: Contribution to journalArticle

Cyclopentanes
Titanium
Derivatives
26 Citations (Scopus)

Enantioselective Iodocarbocyclization of 4-Alkenylmalonate Derivatives Using a Chiral Titanium Complex.

Inoue, T., Kitagawa, O., Kurumi, S., Ochiai, O. & Taguchi, T., 1995 Feb 15, In : Tetrahedron Lett.. 36, p. 1479-1482

Research output: Contribution to journalArticle

9 Citations (Scopus)

Iodocarbocyclization reaction

Taguchi, T., Kitagawa, O. & Inoue, T., 1995 Sep, In : Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry. 53, 9, p. 770-779 10 p.

Research output: Contribution to journalArticle

Enantioselectivity
Derivatives
Cyclopentanes
Nucleophiles
Titanium

Structual Analysis of -Turn Mimics Containing a Substituted 6-Aminocaproic Acid Linker.

Kitagawa, O., V, D., Velde, E., Dutta, D., Morton, M., Takusagawa, F. & Aube, J., 1995 Oct 1, In : J. Am. Chem. Soc.. 117, p. 5169-5178

Research output: Contribution to journalArticle

41 Citations (Scopus)

Structural analysis of β-turn mimics containing a substituted 6-aminocaproic acid linker

Kitagawa, O., Kitagawa, O., Dutta, D., Morton, M., Takusagawa, F. & Aube, J., 1995, In : Journal of the American Chemical Society. 117, 19, p. 5169-5178 10 p.

Research output: Contribution to journalArticle

Aminocaproic Acid
Structural analysis
Stereochemistry
Stereoisomerism
Acids
1996
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 Jun 10, In : Tetrahedron. 52, 24, p. 8135-8142 8 p.

Research output: Contribution to journalArticle

Ether
Cations
Chemical activation
Ethers
Alcohols
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

24 Citations (Scopus)

Diastereoselective iodocarbocyclization reaction of 2- or 3-oxy-4-pentenylmalonate derivatives

Inoue, T., Kitagawa, O., Oda, Y. & Taguchi, T., 1996 Nov 15, In : Journal of Organic Chemistry. 61, 23, p. 8256-8263 8 p.

Research output: Contribution to journalArticle

Derivatives
Brefeldin A
Titanium
Catalysts
24 Citations (Scopus)

Diastereoselective Iodocarbocyclization Reaction of 2- or 3-Oxy-4-pentenylmalonate Derivatives.

Inoue, T., Kitagawa, O., Oda, Y. & Taguchi, T., 1996 Oct 1, In : J. Org. Chem.. 61, p. 8256-8263

Research output: Contribution to journalArticle

20 Citations (Scopus)

Iodocarbocyclization reaction

Kitagawa, O., Inoue, T. & Taguchi, T., 1996, In : Reviews on Heteroatom Chemistry. 15, p. 243-262 20 p.

Research output: Contribution to journalArticle

Enantioselectivity
Derivatives
Cyclopentanes
Nucleophiles
Titanium

Iodocarbocyclization Reaction.

Kitagawa, O., Inoue, T. & Taguchi, T., 1996 Aug 1, In : Default journal. Reviews on Heteroato, p. 15-243

Research output: Contribution to journalArticle

1997
71 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

Anilides
Cyclopentanes
Iodine
Lactic Acid
isoprene
71 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

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, In : Chemical and Pharmaceutical Bulletin. 45, 1, p. 32-35 4 p.

Research output: Contribution to journalArticle

Bromosuccinimide
Oximes
Derivatives