A process for resolving a racemic mixture into its (R) and (S) enantiomers. The racemic mixture is reacted with a resolving agent selected from the group consisting of di-benzoyl-L-tartaric acid, di-benzoyl-D-tartaric acid, (S)-mandelic acid and (R)-mandelic acid in a solvent. The reaction is carried out under conditions sufficient to form soluble diastereomeric salts comprising the (R) enantiomer and the resolving agent, and the (S) enantiomer and the resolving agent, respectively. One of the diastereomeric salts is then isolated from the mixture. The free base of the isolated salt may then be generated in situ, and directly reacted with other compounds to synthesize useful chiral compounds.
一种将外消旋混合物分解为其(R)和(S)对映异构体的方法。将外消旋混合物与选自二苯乙酰-
L-酒石酸、二苯乙酰-
D-酒石酸、(S)-
苯乙酸和(R)-
苯乙酸的分离剂在溶剂中反应。在足够形成可溶性对映异构体盐的条件下进行反应,包括(R)对映异构体和分离剂的盐和(S)对映异构体和分离剂的盐。然后从混合物中分离出其中一个对映异构体盐。可以在原位生成分离盐的自由碱,然后直接与其他化合物反应以合成有用的手性化合物。