Palladium Catalyzed Carbonylative Coupling for Synthesis of Arylketones and Arylesters Using Chloroform as the Carbon Monoxide Source
作者:Poonam Sharma、Sandeep Rohilla、Nidhi Jain
DOI:10.1021/acs.joc.6b02711
日期:2017.1.20
describe a modular, palladium catalyzed synthesis of aryl(hetero)aryl benzophenones and aryl benzoates from aryl(hetero)aryl halides using CHCl3 as the carbonyl source in the presence of KOH. The reaction occurs in tandem through an initial carbonylation to generate an aroyl halide, which undergoes coupling with arylboronic acids, bornonates, and phenols. Direct carbonylative coupling of indoles at the
我们描述了在KOH存在下,使用CHCl 3作为羰基源,从芳基(杂)芳基卤化物进行模块化,钯催化的芳基(杂)芳基二苯甲酮和苯甲酸芳基酯的合成。该反应通过初始的羰基化反应串联发生,生成芳酰卤,然后与芳基硼酸,硼酸根和苯酚偶合。吲哚在第三个位置上的直接羰基偶合还可以通过在原位活化C–H键来在稍微改变的反应条件下完成。值得注意的是,CHCl 3是一种方便,安全的CO气体替代品,提供了较温和的反应条件和较高的官能团耐受性,并以中等至良好的收率提供了产品。