Pure Appl. Chem., 2008, Vol. 80, No. 5, pp. 1079-1087
doi:10.1351/pac200880051079
Rhodium-catalyzed CO gas-free carbonylative cyclization using aldehydes*
Tsumoru Morimoto, Masahiko Fujioka, Koji Fuji, Ken Tsutsumi, and Kiyomi Kakiuchi
Graduate School of Materials Science, Nara Institute of Science and Technology (NAIST), Takayama, Ikoma, Nara 630-0192, Japan
Abstract:
A new protocol for CO gas-free carbonylation, in which aldehydes are used as a substitute for CO, is described. The protocol consists of two Rh-mediated processes; the Rh-mediated decarbonylation of aldehydes, which leads to the formation of Rh carbonyl, and subsequent Rh-catalyzed carbonylative cyclization utilizing the in situ formed Rh carbonyl species.
Keywords: aldehydes; carbonyl; carbonylation; homogeneous catalysis; transition metals.
*Paper based on a presentation at the 14th International Symposium on Organometallic Chemistry Directed Towards Organic Synthesis (OMCOS-14), 2-6 August 2007, Nara, Japan. Other presentations are published in this issue, pp. 807-1194.
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