New Phosphonate Reagents for Aldehyde Homologation
作者:Richard J. Petroski
DOI:10.1080/00397910701569114
日期:2007.10.1
Abstract New phosphonate reagents were developed for the two‐carbon homologation of aldehydes to unbranched or methyl‐branched unsaturated aldehydes. The phosphonate reagents, diethyl methylformylphosphonate dimethylhydrazone and diethyl ethylformyl‐2‐phosphonate dimethylhydrazone, contained a protected aldehyde group instead of the usual ester group. A homologation cycle entailed condensation of the