Palladium-Catalyzed Sequential Cyanation/N-Addition/N-Arylation in One-Pot: Efficient Synthesis of Luotonin A and Its Derivatives
摘要:
With the catalysis of palladium, a number of 2-bromo-N-(2-iodobenzyl)benzamides underwent sequential cyanation/N-addition/N-arylation leading to the efficient construction of isoindolo[1,2-b]quinazolin-10(12H)-ones in a two-stage, one-pot manner. This method also allowed the convenient synthesis of luotonin A and its derivatives.
Palladium-catalyzed dicarbonylative synthesis of tetracycle quinazolinones
作者:Chaoren Shen、Nikki Y. T. Man、Scott Stewart、Xiao-Feng Wu
DOI:10.1039/c5ob00368g
日期:——
An interesting procedure for the synthesis of isoindolo[1,2-b]quinazolin-10(12H)-ones has been developed. Starting from commercially available 2-bromoanilines and 2-bromobenzyl amines, with the assistance of a palladium catalyst, the desired products were isolated in good yields. Notably, this procedure proceeded in a highly selective manner; two molecules of CO were incorporated into the substrates
已经开发了一种有趣的合成异吲哚并[1,2 - b ]喹唑啉-10(12 H)-ones的方法。从商业上可获得的2-溴苯胺和2-溴苄基胺开始,在钯催化剂的辅助下,以高收率分离出所需产物。值得注意的是,该程序以高度选择性的方式进行。将两个分子的CO选择性地掺入底物中。