A synthesis of ynolates via the cleavage of ester dianions
作者:Mitsuru Shindo
DOI:10.1016/s0040-4039(97)00924-6
日期:1997.6
A new method for ynolate synthesis via the cleavage of ester dianions has been developed. The key intermediates, ester dianions, generated from alpha-bromocarboxylic acid ester enolates via lithium-halogen exchange turned out to be so labile that they were cleaved rapidly to give ynolates. (C) 1997 Elsevier Science Ltd.