An expedient synthesis of (α,α-difluoroprop-2-ynyl)phosphonate esters
作者:Farid Benayoud、Gerald B. Hammond
DOI:10.1039/cc9960001447
日期:——
Pfitzner-Moffatt oxidation of diethyl alpha-hydroxyalkynephosphonate 4, prepared by nucleophilic attack of diethyl phosphite on the corresponding aldehyde, followed by DAST fluorination of the resulting alpha-ketophosphonate 8, results in the smooth formation of alpha,alpha-difluoroalkynephosphonate 7.
Efficient Syntheses of (α-Fluoropropargyl)phosphonate Esters
作者:Farid Benayoud、Daniel J. deMendonca、Cheryl A. Digits、George A. Moniz、Tanya C. Sanders、Gerald B. Hammond