Premansh Dudhe, Krishnan Venkatasubbaiah, Biswarup Pathak and Venkatesh Chelvam
Org. Biomol. Chem., 2020,18, 1582-1587
DOI:
10.1039/C9OB02657F,
Communication
A serendipitous discovery of a novel one-pot synthesis of 4,6-disubstituted 5-azaindoles is reported herein. In the presence of Hunig's base, various N-substituted pyrrole-2-carboxaldehydes have been efficiently transformed into their corresponding 4,6-disubstituted 5-azaindoles through an imine mediated cascade condensation–heteroannulation. The synthetic value of the methodology is established by preparing a novel chemical analogue of a cannabinoid receptor type 2 (CB2) agonist.