An expedient synthesis of (α,α-difluoroprop-2-ynyl)phosphonate esters

An expedient synthesis of (α,α-difluoroprop-2-ynyl)phosphonate esters
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(α,α-二氟丙-2-炔基)膦酸酯的便捷合成

DOI:
10.1039/cc9960001447
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发表时间:
1996
影响因子:
4.9
通讯作者:
G. Hammond
G. Hammond
中科院分区:
化学2区
文献类型:
--
作者:
F. Benayoud;G. Hammond

文献摘要

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通过亚磷酸二乙酯对相应醛的亲核攻击制备了α-羟基炔基膦酸二乙酯4,然后对生成的α-酮基膦酸二乙酯8进行Dast氟化,得到了α,α-二氟烷基甲基膦酸二乙酯7。
Pfitzner–Moffatt oxidation of diethyl α-hydroxyalkyne-phosphonate 4, prepared by nucleophilic attack of diethyl phosphite on the corresponding aldehyde, followed by DAST fluorination of the resulting α-ketophosphonate 8, results in the smooth formation of α,α-difluoroalkynephosphonate 7.