Highly Efficient Synthesis of New α-Arylamino-αâ²-chloropropan-2-ones via Oxidative Hydrolysis of Vinyl Chlorides Promoted by Calcium Hypochlorite
作者:Vittorio Pace、Fernando MartÃnez、MarÃa Fernández、Joséâ
V. Sinisterra、Andrésâ
R. Alcántara
DOI:10.1002/adsc.200900565
日期:2009.12
The oxidative hydrolysis of different trifluoroacetyl-protected N-(2-chloroallyl)anilines, promoted by calcium hypochlorite, is able to yield several not previously described α-arylamino-α′-chloropropan-2-ones, very valuable building blocks that are useful as precursors of several drugs, in excellent yields and short reaction times. The main requirement of the reaction for avoiding the undesired aromatic
由次氯酸钙促进的不同三氟乙酰基保护的N-(2-氯烯丙基)苯胺的氧化水解能够产生几种先前未描述的α-芳基氨基-α'-氯丙烷-2-酮,这是非常有用的重要组成部分作为几种药物的前体,具有优异的收率和较短的反应时间。通过使用易于形成和除去的N-三氟乙酰基,可以有效地解决为避免不希望的芳族氯化反应(N-保护)而进行的反应的主要要求。因此,可以使用一锅法进行氧化水解-脱保护步骤,从而在非常短的反应时间内获得定量的产率。