R. Hara

发表

Carbon-Carbon Bond Cleavage and Selective Transformation of Zirconacycles

Tamotsu Takahashi, M. Kotora, R. Hara, 1999 .

Atomic probes: a search for conduction through a single molecule

M. Reed, J. Tour, C. Muller, 1996 .

ZIRCONOCENE-MEDIATED INTRAMOLECULAR CARBON-CARBON BOND FORMATION OF TWO ALKYNYL GROUPS OF BIS(ALKYNYL)SILANES

K. Nakajima, Tamotsu Takahashi, R. Hara, 1997 .

Facile cleavage of the CβCβ′ bond of zirconacyclopentenes. Convenient method for selectively coupling alkynes with alkynes, nitriles, and aldehydes

E. Negishi, Tamotsu Takahashi, R. Hara, 1993 .

Structure-activity relationships of cephalosporins having a (dimethylisoxazolidinio)vinyl moiety at their 3-position.

H. Hisamichi, R. Hara, K. Sakamoto, 1996, The Journal of antibiotics.

Allene formation by coupling of propargylic ethers with olefins via β-alkoxide elimination of zirconacycle intermediates

Tamotsu Takahashi, R. Hara, Shouquan Huo, 2000 .

Completion of a catalytic cycle of zirconium-catalyzed alkylation of silanes by addition of organic halides

Tamotsu Takahashi, R. Hara, Y. Ura, 2000 .

Reaction of a Zirconocene-Ethylene Complex with Group 14 Metal Chlorides or Alkoxides

Tamotsu Takahashi, R. Hara, Y. Ura, 1998 .

Zirconium Lewis Acids

Tamotsu Takahashi, R. Hara, 2008 .

REACTION OF ZIRCONACYCLOPENTADIENES WITH CO IN THE PRESENCE OF N-BULI. SELECTIVE FORMATION OF CYCLOPENTENONE DERIVATIVES FROM TWO ALKYNES AND CO

K. Nakajima, Tamotsu Takahashi, R. Hara, 1999 .

[1,2-Benzenediolato(2−)-O,O′]oxotitanium. A Mild and Efficient Catalyst for the Michael Reaction of Ketene Silyl Acetals with α,β-Unsaturated Ketones

R. Hara, T. Mukaiyama, 1989 .

Group 5 and group 6 metal halides as very efficient catalysts for acylative cleavage of ethers

Tamotsu Takahashi, R. Hara, B. Shen, 2002 .

Catalytic C–O bond cleavage of ethers using group 5 or 6 metal halide/acid chloride systems

Tamotsu Takahashi, R. Hara, Guohua Gao, 2001 .

Studies on beta-lactam antibiotics. I. Synthesis and in vitro anti-pseudomonal activity of 3-isothiazole-cephalosporin derivatives.

R. Hara, T. Shibanuma, Y. Murakami, 1987, The Journal of antibiotics.

Highly chemoselective reactions of zirconacyclopentenes for selective functionalization

Tamotsu Takahashi, R. Hara, K. Aoyagi, 1993 .

Synthesis and biological activity of new cephem compounds with a 3-(2-butenyl)- and a 3-(1,3-butadienyl)group at their 3-position.

H. Hisamichi, R. Hara, H. Itahana, 1996, The Journal of antibiotics.

Studies on beta-lactam antibiotics. IV. An improved synthesis of 3-(isothiazolylthiomethyl)cephalosporins and its application to new derivatives.

H. Hisamichi, R. Hara, N. Nagano, 1994, The Journal of antibiotics.

Novel type of carbozirconation reaction of alkynes

D. Kondakov, Tamotsu Takahashi, M. Kotora, 1995 .

Preparation and Characterization of Bis(cyclopentadienyl)zirconium(II) Complexes with a Tethered Olefin−Phosphine Ligand

Y. Nishihara, K. Nakajima, Tamotsu Takahashi, 1999 .

[1,1′-Bi-2-naphthalenediolato(2−)-O,O′]oxotitanium. An Efficient Chiral Catalyst for the Asymmetric Aldol Reaction of Silyl Enol Ethers with Aldehydes

R. Hara, T. Mukaiyama, S. Suda, 1990 .

Highly Selective and Practical Alkyne-Alkyne Cross-Coupling Using Cp2ZrBu2 and Ethylene

Tamotsu Takahashi, R. Hara, Z. Xi, 1995 .

Highly regio- and diastereo-selective carbon-carbon bond formation reaction of unsymmetrical zirconacyclopentanes using copper salt

Y. Nishihara, Tamotsu Takahashi, M. Kotora, 1997 .

Zirconocene-catalysed cyclobutene formation by reaction of alkynyl halides with EtMgBr

Tamotsu Takahashi, R. Hara, Yuanhong Liu, 1998 .

ALLENE FORMATION BY THE REACTION OF OLEFINS WITH PROPARGYL SILYL ETHERS MEDIATED BY A ZIRCONOCENE COMPLEX

Tamotsu Takahashi, R. Hara, M. Leese, 1997 .

Highly substituted enyne formation by coupling reaction of alkenylzirconium compounds with alkynyl halides

Tamotsu Takahashi, R. Hara, Yuanhong Liu, 1997 .

Allylzirconation of alkynes by the reactions of zirconocene-alkyne complexes with allylic ethers

D. Kondakov, Tamotsu Takahashi, R. Hara, 1993 .

Coupling reaction of alkenylzirconocenes with aryl or alkenyl iodides in the presence of

Y. Nishihara, Tamotsu Takahashi, R. Hara, 1997 .

Highly selective monofunctionalization of zirconacyclopentanes and dialkylzirconocene complexes

Y. Nishihara, Tamotsu Takahashi, R. Hara, 1996 .

Catalytic dechlorination of aromatic chlorides using Grignard reagents in the presence of (C5H5)2TiCl2

Tamotsu Takahashi, R. Hara, Kimihiko Sato, 1999 .

Remarkable effect of copper chloride on diiodination of zirconacyclopentadienes

C. Xi, Tamotsu Takahashi, R. Hara, 1997 .

Chemoselective functionalization of zirconacyclopentenes

D. Kondakov, Tamotsu Takahashi, R. Hara, 1994 .

Monohalogenation of zirconacyclopentane complexes via alkylalkoxyzirconocene

Tamotsu Takahashi, R. Hara, K. Aoyagi, 1992 .

Reduction of Molybdenum(V) Chloride with Various Reducing Metals: Reactivity Correlations with the Descendant Lewis Acids.

Tamotsu Takahashi, R. Hara, Q. Guo, 2000 .

Bimetallic μ-cyanoimide complexes prepared by NCN group transfer

C. Cummins, D. Mindiola, R. Hara, 2001 .

Copper-Mediated Coupling of Zirconacyclopentadienes with Dihalo Aromatic Compounds. Formation of Fused Aromatic Rings

Y. Nishihara, Tamotsu Takahashi, M. Kotora, 1996 .

Studies on beta-lactam antibiotics. III. Syntheses and antibacterial activities of new 3-(1,3-dithiolan-2-yl)cephalosporins, YM-22508, YM-16457 and their prodrug-type esters.

R. Hara, M. Satoh, N. Nagano, 1991, The Journal of antibiotics.

Cycloaddition reactions of a 3-(1,3-butadienyl)cephalosporin and antibacterial activity of new cephem derivatives.

H. Hisamichi, R. Hara, H. Itahana, 1996, The Journal of antibiotics.

Preparation of ethylene-bridged Group 14 metal–zirconocene complexes

Tamotsu Takahashi, R. Hara, Y. Ura, 2000 .