Expedient one-pot synthesis of indolo[3,2-c]isoquinolines via a base-promoted N-alkylation/tandem cyclization
作者:Huy H. Nguyen、James C. Fettinger、Makhluf J. Haddadin、Mark J. Kurth
DOI:10.1016/j.tetlet.2015.08.006
日期:2015.9
A transition metal-free, one-pot protocol has been developed for the synthesis of 11H-indolo[3,2-c]isoquinolin-5-amines via the atom economical annulation of ethyl (2-cyano-phenyl)carbamates and 2-cyanobenzyl bromides. This method proceeds via sequential N-alkylation and base-promoted cyclization. Optimization data, substrate scope, mechanistic insights, and photoluminescence properties are discussed
已开发了一种无过渡金属的一锅操作规程,用于通过原子经济的乙基(2-氰基-苯基)氨基甲酸酯和2的环合反应合成11 H-吲哚[3,2 - c ]异喹啉-5-胺-氰基苄基溴。该方法通过顺序的N-烷基化和碱促进的环化进行。讨论了优化数据,基板范围,机理见解和光致发光特性。