Fragmentation and rearrangement of carbonyl-bridged compounds. Synthesis and crystal structure of new spirocycles containing azetidine rings
Abstract
Fragmentation and rearrangement of CO-bridged compounds prepared by carbonylation of alk-1,6-diynes, give rise to new spirocycles, or to tricyclic ketones; the X-ray crystal structures of two spirocycles, containing azetidine rings, are reported.