Photochemical Hydroformylation of Olefins in the Cobalt-Phosphine Catalyst System.

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概要

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• Cobalt-catalyzed hydroformylation of olefins was found to proceed even at ambient temperature under UV irradiation in the presence of phosphine. Extremely high selectivity toward straight-chain aldehyde (99% in case of 1-hexene) was obtained by lowering the partial pressure of carbon monoxide at ambient temperature. A catalytic species different from the well-known species under high pressure of carbon monoxide and high temperature contributed to the highly selective formation of straight-chain aldehydes. Two photochemical processes were suggested to be involved in the photochemical hydroformylation reaction, that is, the formation of HCo(CO)<SUB>3</SUB>PBu<SUB>3</SUB> from the cationic cobalt species, [Co(CO)<SUB>3</SUB>(PBu<SUB>3</SUB>)<SUB>2</SUB>]<SUP>+</SUP>, and then the formation of the coordinatively unsaturated hydride, HCo(CO)<SUB>2</SUB>PBu<SUB>3</SUB>.

• 公益社団法人 日本化学会の論文

著者

• Kudo Kiyoshi

  Institute For Chemical Research Kyoto University

• SUGITA Nobuyuki

  Institute for Chemical Resaerch, Kyoto University

• MORI Sadayuki

  Institute for Chemical Research, Kyoto University

• Mori Sadayuki

  Institute For Chemical Research Kyoto University

• Yasuda Masaki

  Institute for Chemical Research, Kyoto University

• Tatsumi Shunji

  Institute for Chemical Research, Kyoto University

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