Y. Ozaki et al., A METHOD FOR THE CYCLIC ENONE SYNTHESIS USING LITHIUM CHLORIDE-HEXAMETHYLPHOSPHORAMIDE SYSTEM, Chemistry Letters, (6), 1993, pp. 993-994
Cyclic enones were obtained from the reactions of beta-keto esters wit
h acyclic alpha,beta-unsaturated ketones by using lithium chloride in
hexamethylphosphoramide. The products were brought about via the Micha
el addition, decarboxylation, and the aldol condensation.