名称:
Piperonal as Starting Material for the Regiospecific and Stereoselective Synthesis ofEandZIsomers of 3-Methyl-2-hexenedioic acid-1-methyl ester
摘要:
A short synthesis of gamma-lactone 5 was developed starting from the easily available piperonal 1. The key step in this approach was an ozonation of the aromatic ring of 2. Compound 5 led stereoselectively to 6 or 7 by a beta-elimination reaction under thermo-dynamic or kinetic conditions.
DOI:
10.1080/00397919108020839