Preparation of Fluoroalkyl Imines, Amines, Enamines, Ketones, α-Amino Carbonyls, and α-Amino Acids from Primary Enamine Phosphonates
作者:Francisco Palacios、Ana María Ochoa de Retana、Sergio Pascual、Julen Oyarzabal
DOI:10.1021/jo048682m
日期:2004.12.1
A simple method for preparation of fluoroalkyl β-enaminophosphonates 1 from alkylphosphonates 2 and perfluoroalkyl nitriles 3 is reported. Olefination reaction of functionalized phosphates 1 with aldehydes gives α,β-unsaturated imines 5. Acid hydrolysis of these fluoroalkyl derivatives 5 affords α,β-unsaturated ketones 6, while their selective reduction with hydrides leads to the formation of allylamines
报道了一种由烷基膦酸酯2和全氟烷基腈3制备氟烷基β-烯氨基膦酸酯1的简单方法。官能化磷酸盐1与醛的烯烃化反应产生α,β-不饱和亚胺5。这些氟代烷基衍生物5的酸水解得到α,β-不饱和酮6,而它们被氢化物选择性还原导致烯丙胺7,烯胺8和饱和酮9或胺10的形成。烯丙胺碳-碳双键的选择性氧化裂解7得到氟化的α-氨基醛12,α-氨基酮13或α-氨基酸衍生物14。