Palladium-Catalyzed Oxidative Difunctionalization of Alkenes with α-Carbonyl Alkyl Bromides Initiated through a Heck-type Insertion: A Route to Indolin-2-ones
作者:Jian-Hong Fan、Wen-Ting Wei、Ming-Bo Zhou、Ren-Jie Song、Jin-Heng Li
DOI:10.1002/anie.201402893
日期:2014.6.23
palladium‐catalyzed oxidative difunctionalization reaction of alkenes with α‐carbonyl alkyl bromides is described, in which the σ‐alkyl palladium(II) intermediate is generated through a Heck insertion and trapped using an aryl C(sp2)H bond. This method can be applied to various α‐carbonyl alkyl bromides, including primary, secondary, and tertiary α‐bromoalkyl esters, ketones, and amides.
各种σ-烷基钯(II)中间体与烯烃双官能化的附加试剂的氧化拦截作用是一个重要的研究领域。描述了烯烃与α-羰基烷基溴化物的新的钯催化的氧化双官能化反应,其中通过Heck插入生成σ-烷基钯(II)中间体,并使用芳基C(sp 2)H键捕获。该方法可用于各种α-羰基烷基溴化物,包括伯,仲和叔α-溴代烷基酯,酮和酰胺。