Preparation of enantiopure butane-2,3-diacetals of glycolic acid and alkylation reactions leading to α-hydroxyacid and amide derivatives
作者:Steven V. Ley、Elena Diez、Darren J. Dixon、Richard T. Guy、Patrick Michel、Gillian L. Nattrass、Tom D. Sheppard
DOI:10.1039/b412788a
日期:——
The preparation of butane-2,3-diacetal protected glycolic acid and related systems is described together with highly selective alkylationreactions of (R,R) and (S,S) butanediacetal protected glycolic acid. These compounds are readily deprotected to give enantiopure alpha-hydroxyacids, alpha-hydroxyesters or alpha-hydroxyamides by suitable choice of conditions.