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Selective Transfer Semihydrogenation of Alkynes with Nanoporous Gold Catalysts

Yogesh S. Wagh and Naoki Asao*

*WPI-Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan, Email:

Y. S. Wagh, N. Asao, J. Org. Chem., 2015, 80, 847-851.

DOI: 10.1021/jo502313d

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The use of unsupported nanoporous gold (AuNPore) as a heterogeneous catalyst enables a facile, highly chemo- and stereoselective transfer semihydrogenation of alkynes to Z-olefins in the presence of formic acid as a hydrogen donor. Various alkynes were reduced to the corresponding alkenes in high chemical yields with good functional-group tolerance. The catalyst is robust enough to be reused without leaching.

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Key Words

semireduction of alkynes, formic acid

ID: J42-Y2015