作者:S.A Buckler、M Epstein
DOI:10.1016/0040-4020(62)80002-7
日期:1962.1
work on the reaction of phosphine with carbonyl compounds is reviewed and new information is provided on the reaction of phosphines with ketones. Primary phosphine oxides (X) and 1-hydroxy secondary phosphine oxides (XI) are formed in strongly acidic media and the ratio of the two products is determined by steric factors; the former predominate with more hindered ketones. The primary phosphine oxides are
审查了膦与羰基化合物反应的早期工作,并提供了有关膦与酮反应的新信息。伯膦氧化物(X)和1-羟基仲膦氧化物(XI)在强酸性介质中形成,两种产物的比例由空间因素决定;前者以受阻酮为主。伯膦氧化物是一类新的化合物。它们在浓缩状态下具有有限的热稳定性,但是在溶液中足够稳定以用作中间体。讨论了该膦和羰基膦反应中氧转移步骤的机理。