6533b852fe1ef96bd12ab4f4

RESEARCH PRODUCT

Stereoselective synthesis of syn-α-methyl-β-hydroxy esters

Florenci V. GonzálezEva FalomirJuan MurgaMiguel CardaJ. Alberto Marco

subject

chemistry.chemical_classificationKetoneStereochemistryOrganic ChemistryErythruloseCatalysisAdductInorganic Chemistrychemistry.chemical_compoundEnantiopure drugAldol reactionchemistryYield (chemistry)PropionateStereoselectivityPhysical and Theoretical Chemistry

description

Abstract Boron enolates of an ethyl ketone structurally related to erythrulose react with achiral aldehydes in a highly stereoselective fashion to yield 1,2- syn /1,3- syn stereoisomers. Oxidative cleavage of the aldol adducts yields enantiopure O -formylated syn -α-methyl-β-hydroxy esters, easily cleaved to the corresponding hydroxyl-free compounds. The aforementioned ketone behaves therefore as a chiral propionate enolate equivalent.

https://doi.org/10.1016/s0957-4166(00)00274-3