Dual Catalysis in Domino<i>N</i>-Benzylation/Intramolecular C-H Arylation: Regio- and Chemoselective Synthesis of Annelated Nitrogen Heterocycles
作者:Joydev K. Laha、Neetu Dayal、Swati Singh、Rohan Bhimpuria
DOI:10.1002/ejoc.201402395
日期:2014.9
A general method has been developed for the synthesis of fused nitrogenheterocycles by using a domino N-benzylation/C–Harylation reaction sequence. The details and yields of the domino process were compared with those of the two-step literature protocol. Fused azaindoles, which are otherwise difficult to obtain, were synthesized by using this process. The unprecedented catalytic role of PPh3 in this