New syntheses of optically active vitamin E side chain by chemicoenzymatic approach
作者:P. Gramatica、P. Manitto、D. Monti、G. Speranza
DOI:10.1016/s0040-4020(01)82109-8
日期:1986.1
tocopherol sidechain, are described. Both reaction sequences startfrom (R)-citrohellol, obtained by baker's yeast reduction of geraniol. One strategy is based on the coupling between (R)-citronellyl bromide and a C5 optically active unit derived from chemical degradation of the common starting template; the other one uses an achiral isoprenic unit and a C10, building block containing two asymmetric carbon