Palladium-catalyzed regio- and stereoselective synthesis of aryl and 3-indolyl-substituted 4-methylene-3,4-dihydroisoquinolin-1(<i>2H</i>)-ones
作者:Valeria Nori、Antonio Arcadi、Armando Carlone、Fabio Marinelli、Marco Chiarini
DOI:10.3762/bjoc.16.95
日期:——
Cascade cyclocarbopalladation of the readily available aryl/alkyl-substituted propargylic amides containing an aryl iodide moiety, followed by Suzuki–Miyaura coupling with arylboronic acids, allowed an efficient regio- and stereoselective synthesis of tetrasubstituted 4-methylene-3,4-dihydroisoquinolin-1(2H)-ones. Moreover, cascade cyclocarbopalladation, followed by the reaction with 2-alkynyltrifluoroacetanilides
容易获得的含芳基碘基团的芳基/烷基取代的炔丙基酰胺的级联环碳缩合反应,然后将Suzuki-Miyaura与芳基硼酸偶合,可实现区域和立体选择性合成四取代的4-亚甲基-3,4-二氢异喹啉-1 (2 H)-个。此外,级联环羰缩钯反应,然后与2-炔基三氟乙酰苯胺反应,完成了双环化反应,从而通过氨基palpalation /还原消除作用,使带有3-吲哚基取代基的4-亚甲基-3,4-二氢异喹啉-1(2 H)-具有挑战性。