Optically Active Monoacetyldiacylglycerols from Stauntonia hexaphylla Seed Oil

Abstract

Optically active monoacetyldiacylglycerols were isolated from the Stauntonia hexaphylla seed oil. The hydrogenated Stauntonia monoacetyldiacylglycerols gave a plain, negative optical rotatory dispersion curve. Comparison of the triacylglycerols with those of known configuration in the optical rotatory behavior showed that all Stauntonia monoacetyldiacylglycerols were essentially (S) -3-acetyl-1, 2-diacylglycerol. The constituent acids, other than acetic, of the triacylglycerols were ordinary long-chain fatty acids. Octadecenoic and octadecadienoic acids were present in abundance in the 2-position.