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A Cascade Synthesis of Hetero‐arylated Triarylmethanes Through a Double 5‐ endo ‐dig Cyclization Sequence
Author(s) -
Paluru Dilip K.,
Mahesh Sriram,
Ahmad Feroz,
Vijaya Anand Ramasamy
Publication year - 2019
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201900960
Subject(s) - dig , chemistry , indolizine , cascade , combinatorial chemistry , sequence (biology) , medicinal chemistry , stereochemistry , computer science , chromatography , biochemistry , computer security
A sequential two‐step method for the synthesis of hetero‐arylated triarylmethanes through a Ag‐catalyzed sequential double cyclization–nucleophilic addition cascade is described. This methodology basically involves an initial 5‐ endo ‐dig cyclization of o ‐alkynyl anilines to provide 2‐substituted indole derivatives, which then react with 2‐(2‐enynyl)‐pyridines to afford indolizine‐containing unsymmetrical triarylmethanes through another 5‐ endo ‐dig cyclization.