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Dive into the research topics where Masao Yanagawa is active.

Publication


Featured researches published by Masao Yanagawa.


Journal of the American Chemical Society | 2009

New tantalum ligand-free catalyst system for highly selective trimerization of ethylene affording 1-hexene: new evidence of a metallacycle mechanism.

Rocío Arteaga-Müller; Hayato Tsurugi; Teruhiko Saito; Masao Yanagawa; Seiji Oda; Kazushi Mashima

Mild and salt-free reduction of MCl(5) (M = Nb, Ta) has been achieved by using 3,6-bis(trimethylsilyl)-1,4-hexadiene derivatives as reducing reagents. The salt-contact-free low-valent TaCl(3) exhibits high catalytic activity for the trimerization of ethylene to 1-hexene (>1000 TOF) with excellent selectivity (>98%). This salt-free tantalum system enables us to observe new evidence for a metallacycle mechanism.


Archive | 2009

POLYMER ELECTROLYTE COMPOSITION

Ken Yoshimura; Masao Yanagawa


Archive | 2004

Trimerization catalyst for olefin

Masao Yanagawa; Kazunori Iwakura; Seiji Oda


Archive | 2008

METHOD FOR MANUFACTURING COORDINATION POLYMER

Katsuki Mochizuki; Masao Yanagawa; 勝紀 望月; 正生 柳川


Archive | 2005

Trimerization catalyst of ethylene and trimerization method of ethylene using it

Seiji Oda; Masao Yanagawa; Eiji Yoshikawa; 栄二 吉川; 精二 小田; 正生 柳川


Archive | 2004

Olefin trimerizing catalyst and olefin trimerizing method using the same

Kazunori Iwakura; Seiji Oda; Masao Yanagawa; 精二 小田; 和憲 岩倉; 正生 柳川


Archive | 2003

Transition metal compound, catalysts for addition polymerization, and method for producing addition polymer

Wataru Hirahata; Hiroshi Kuribayashi; Masao Yanagawa; 亘 平畠; 正生 柳川; 浩 栗林


Archive | 2002

Process for preparing pyridazin-2-one derivs.

Masao Yanagawa; Masahiko Mizuno; Yoshiaki Oda


Archive | 2000

METHOD FOR REMOVING HALOGENIDE ION

Masahiko Mizuno; Masao Yanagawa; Hiroyasu Yoshida; 大泰 吉田; 正生 柳川; 雅彦 水野


Archive | 2011

Polycyclic compound and an organic semiconductor device

Mitsuhiro Matsumoto; Yasuo Miyata; Masao Yanagawa; 康生 宮田; 光弘 松本; 正生 柳川

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