作者:John C. Clark、Gordon H. Phillipps、Margaret R. Steer
DOI:10.1039/p19760000475
日期:——
Esters of DL-phenylglycine or substituted phenylglycines, on being stirred with (+)-tartaric acid in alcohols in the presence of carbonyl compounds, give, depending on the reaction conditions, the D- or L-ester hydrogen (+)-tartrates in up to nearly 100% yield (i.e. almost all the racemic ester is converted into the D- or L-salt). The mechanism of this new type of asymmetric transformation is discussed
DL-苯基甘氨酸或取代的苯基甘氨酸的酯,在羰基化合物存在下与(+)-酒石酸在醇中搅拌时,根据反应条件,可得到D-或L-酯氢(+)-酒石酸收率接近100%(即几乎所有的外消旋酯都转化为D-或L-盐)。讨论了这种新型的不对称变换的机制。的d -或大号-酯氢(+) -酒石酸盐是由强酸或强碱,得到高光学纯度的氨基酸水解。