Pd-Catalyzed carbonylative lactonization of 2-halidearomatic aldehydes with H<sub>2</sub>O as a nucleophile
作者:Min Si、Jiaqi Yan、Yongzheng Ding、Hanmin Huang
DOI:10.1039/d2ob00623e
日期:——
A palladium-catalyzed carbonylative cyclization reaction of 2-halidebenzaldehydes with H2O is described, which provides a strategy for the synthesis of diversely substituted 3,3′-oxyphthalides. Notably, the obtained 3,3′-oxyphthalide could be easily transformed into 3-aryl and alkyl phthalides with excellent efficiency using organozinc reagents under mild reaction conditions.
描述了钯催化的 2-卤代苯甲醛与 H 2 O 的羰基环化反应,为合成多种取代的 3,3'-邻苯二甲酸酯提供了策略。值得注意的是,在温和的反应条件下,使用有机锌试剂,获得的 3,3'-邻苯二甲酸可以很容易地转化为 3-芳基和烷基苯二甲酸苯并具有优异的效率。