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Liquid enol ethers and acetates as gaseous alkyne equivalents in rh-catalyzed chemo- and regioselective formal cross-alkyne cyclotrimerization.

Research paper by Hiromi H Hara, Masao M Hirano, Ken K Tanaka

Indexed on: 15 May '08Published on: 15 May '08Published in: Organic Letters



Abstract

A cationic rhodium(I)/rac-BINAP complex catalyzes chemo- and regioselective formal cross-cyclotrimerizations of alkynes with enol ethers or acetates. Commercially available and cheap liquid enol ethers and acetates could be used as convenient gaseous alkyne equivalents in the present rhodium catalyses.