Synthesis and reactivity of a novel class of long-lived ammonium ylides: derivatives of benzo[b]pyrrolo[2,1-f][1.6]naphthyridine.
Reaction of 10-cyanotetrahydrobenzo[b][1,6]naphthyridines (1-6) with activated alkynes affords stable benzo[b]pyrrolo[2,1-f][1,6]naphthyridine-4-ium ylides (7-14) in moderate yields. A proposed mechanism for their formation consists of a new tandem multistage process.
Voskressensky
Leonid G
LG
Organic Chemistry Department of the Russian Peoples Friendship University, Moscow, Russia.lvoskressensky@sci.pfu.edu.ru
Vorobiev
Ilya V
IV
Borisova
Tatyana N
TN
Varlamov
Alexey V
AV