Affiliation:
1. N. D. Zelinsky Institute of Organic Chemistry RAS 47 Leninsky Prospect 119991 Moscow
Abstract
AbstractNitro‐substituted 3‐benzylindoles were obtained via piperidine‐catalyzed Knoevenagel condensation of 4,6‐dinitro‐1‐tosylindoline with aromatic/heteroaromatic aldehydes (yields 42–68 %) followed by a DBU‐induced shift of the C=C bond thus formed into the 5‐membered ring (yields 59–84 %).