Investigation of unsaturated lactones

Autor: Avetisyan, A. A., Akopyan, K. G., Dangyan, M. T.
Zdroj: Chemistry of Heterocyclic Compounds; December 1973, Vol. 9 Issue: 12 p1449-1452, 4p
Abstrakt: Transesterification with subsequent cyclization to 4-carbethoxy-5,6,6-trialkyl-3-hydro-2-pyrones occurs during condensation of a-keto alcohols with diethyl succinate. 4-Carbethoxy-5,6,6-trimethyl-3-hydro-2-pyrone was obtained by reaction of dimethylethynylcarbinol with the ethyl ester of succinic acid monochloride and subsequent hydration of the acetylenic ester and cyclization.
Databáze: Supplemental Index