Addition of Organometallic Nucleophiles to β-Keto Phosphonates
作者:LoriAnn M. Lentsch、David F. Wiemer
DOI:10.1021/jo990388k
日期:1999.7.1
some Grignard reagents with β-keto phosphonates results in nucleophilic addition to the carbonyl group to afford β-hydroxy phosphonates with extension of the carbon skeleton. Additions of allylmagnesium reagents have proven particularly efficient, especially in the presence of BF3·OEt2. Reactions of allylic zinc reagents with β-keto phosphonates also gave the desired β-hydroxy phosphonates, often in even