Tandem Carbocupration/Oxygenation of Terminal Alkynes
作者:Donghui Zhang、Joseph M. Ready
DOI:10.1021/ol052413g
日期:2005.12.1
their enol derivatives is described. Carbocupration of terminal alkynes and subsequent oxygenation with lithium tert-butyl peroxide generates a metallo-enolate. Trapping with variouselectrophiles provides alpha-branched aldehydes or stereo-defined trisubstituted enol esters or silyl ethers. The tandem carbocupration/oxygenation tolerates alkyl and silyl ethers, esters, and tertiary amines. The reaction