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Dive into the research topics where Kazunari Takahashi is active.

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Featured researches published by Kazunari Takahashi.


Catalysis Surveys From Japan | 2002

A novel production of γ-butyrolactone catalyzed by homogeneous ruthenium complexes

Yoshinori Hara; Kazunari Takahashi

Abstractγ-Butyrolactone (hereafter abbreviated GBL) is produced by the two-stage hydrogenation of maleic anhydride(MAH) in the liquid phase: the hydrogenation of MAH to succinic anhydride(SAH) in the first stage and the subsequent hydrogenation of SAH to GBL in the second stage. A novel ruthenium catalyst system consisting of Ru salts, trialkylphosphine and p-toluene sulfonic acid (p-TsOH) was found very effective for the hydrogenation of SAH affording GBL, which exhibited excellent catalyst performance, exceeding 97% selectivity for GBL and high activity.


Organometallics | 2005

Dramatic Rate Acceleration by a Diphenyl-2-pyridylphosphine Ligand in the Hydration of Nitriles Catalyzed by Ru-(acac)~2 Complexes

Toshiyuki Oshiki; Hitoshi Yamashita; Kensuke Sawada; Masaru Utsunomiya; Kazunari Takahashi; Kazuhiko Takai


Journal of Catalysis | 2000

A novel production of γ-butyrolactone catalyzed by ruthenium complexes

Yoshinori Hara; Haruhiko Kusaka; Hiroko Inagaki; Kazunari Takahashi; Keisuke Wada


Archive | 2004

Signal processor and processing method of solid state image sensor and imaging apparatus

Manabu Hara; Hiromasa Ikeyama; Yoshiaki Nishide; Kazunari Takahashi; 裕政 池山; 義章 西出; 和成 高橋


Archive | 1990

Process for producing a lactone

Chihiro Miyazawa; Kazunari Takahashi; Hiroshi Kameo; Shinji Isogai; Masayuki Otake


Archive | 1995

Process for preparing butyrolactone and method for separating organic phosphorous-ruthenium complex as catalyst and reusing the same

Hitoshi Sugiyama; Kazunari Takahashi; Haruhiko Kusaka


Archive | 2006

Process for production of aromatic compound and process for production of hydrogenated aromatic compound

Hiromichi Kuwana; 桑名 弘通; Kazutaka Akai; 赤井 一隆; Kazunari Takahashi; 高橋 和成; Fumitaka Utsumi; 内海 史尊


Archive | 2000

Pyrrolidone composition and method for producing the same

陽子 ▲勢▼藤; Hiroyuki Onoe; Yoko Seto; Kazunari Takahashi; Yoshiyuki Yokoyama; 浩之 尾上; 佳幸 横山; 和成 高橋


Archive | 1993

Method of and apparatus for cleaning oil-deposited material and a cleaning agent used therefor

Makoto Ishikawa; Tetsuhiro Yamauchi; Kazunari Takahashi; Soichi Orita; Tetsuo Asanuma; Noboru Ueki; Masayuki Hattori; Satoshi Yamazaki


Archive | 2000

Gel-like particle-containing liquid soup composition and method for producing the same

Koshiro Hatakeyama; Kazunari Takahashi; Hiroyuki Ueda; Keiko Yamamoto; 恵子 山本; 裕之 植田; 晃子郎 畠山; 和成 高橋

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Masaru Utsunomiya

Mitsubishi Chemical Corporation

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Yoko Seto

Mitsubishi Chemical Corporation

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Makoto Ishikawa

Mitsubishi Chemical Corporation

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Tetsuo Asanuma

Mitsubishi Chemical Corporation

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Soichi Orita

Mitsubishi Chemical Corporation

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Souichi Orita

Mitsubishi Chemical Corporation

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Kazutaka Maruyama

Mitsubishi Chemical Corporation

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Masayuki Hattori

Mitsubishi Chemical Corporation

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Noboru Ueki

Mitsubishi Chemical Corporation

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