A unique two-carbon ring expansion of isatin has been achieved to conveniently construct the functionalized dibenzo[b,d]azepin-6-one scaffold in moderate to high yields, and the two carbon sources are different: one carbon is from theN-substituent of pyridinium bromide and the other is from indene-1,3-dione.
已成功实现了
异喹啉的独特的两碳环扩展,以便方便地构建功能化的二苯并[
b,
d]
吡嗪-6-酮骨架,产率为中到高,并且两个碳源不同:一个碳来自
吡啶溴化物的
N-取代基,另一个来自
茚-1,3-二酮。