E. Bourque et al., Macrocyclic studies of EZ and ZZ 12-membered aza macrocycles; Novel molecular rearrangement observed, SYNLETT, (7), 1999, pp. 1115-1117
EZ and ZZ hetero macrocyclic dienes 13a and 14b are generated respectively
by an intramolecular displacement of alpha-chloroketones 11a and 11b using
trifluoroacetamide as nucleophilic agent. Novel molecular rearrangements we
re observed.