Constituents of Holothuroidea, 16. Determination of Absolute Configuration of the Branched Methyl Group in Ante-iso Type Side Chain Moiety on Long Chain Base of Glucocerebroside from the Sea Cucumber Holothuria leucospilota
branched methyl group in ante-iso type side chain moiety on the long chain base of glucocerebroside, HLC-2-A, which was isolated from the sea cucumber Holothuria leucospilota was determined. Oxidation of the glucocerebroside with ozone afforded C13-fragment including the ante-iso moiety. The optically active C13-fragment was synthesized asymmetrically by using the Wittig reaction from chiral synton for
Hydrolytic kinetic resolution of mono- and bisepoxides as a key step in the synthesis of insect pheromones
作者:Sharon Chow、William Kitching
DOI:10.1039/b102181h
日期:——
The synthetic utility of the readily separated epoxides,
diols, epoxydiols and tetrols of high enantiomeric excesses, obtained by
hydrolytic kinetic resolution (HKR) of functionalised mono- and bisepoxides
with (salen)Co(OAc) complexes, is demonstrated by their efficient
transformations to important insect pheromones.