Transfer Hydrogenation and Transfer Hydrogenolysis VII. The Mechanism of Hydrogen Transfer from 2-Propanol to Olefins Catalyzed by Dihydridotetrakis(triphenylphosphine)ruthenium(II)

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概要

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• The dihydride complex, RuH<SUB>2</SUB>(PPh<SUB>3</SUB>)<SUB>4</SUB>, has been found to be an excellent catalyst for the hydrogen transfer from 2-propanol to olefins. For cyclohexene in toluene solution, the rate law at 80°C was:<BR>Rate=\frac0.04[C]_o[D]1+24[P]<BR>where [C]<SUB>0</SUB>, [D] and [P] are the concentration of the catalyst, 2-propanol and triphenylphosphine, respectively. It is pressumed that active intermediates of the reaction are not Ru(IV)-species but Ru(0)-species. The rate determining step of the reaction is inferred to be the dehydrogenation of 2-propanol, that is, the hydrogen transfer from the alcohol to Ru(0)-complex to form a hydride complex by oxidative addition.

• 公益社団法人 日本化学会の論文

著者

• FUKUZUMI Kazuo

  Department of Applied Chemistry, Faculty of Engineering, Nagoya University

• Kobayashi Masaki

  Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Josai University

• Nishiguchi Takeshi

  Department of Applied Chemistry, Faculty of Engineering, Nagoya University

• Imai Hideaki

  Department of Applied Chemistry, Faculty of Engineering, Nagoya University

• Kobayashi Masaki

  Department of Applied Chemistry, Faculty of Engineering, Nagoya University

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