2-benzoylchromen-4-one both enantiomers of the corresponding alcohols were obtained with high enantiomeric excess. The absolute configurations were determined directly by an X-ray structural determination. The results obtained showed that for most of the microorganisms tested, an inversion of the configuration of the alcohol occurred with the change of the substituent (methyl to phenyl group) in position 2, but also
从2-乙酰基或2-苯甲酰基
铬基-4-酮的微
生物还原中,获得了相应醇的两种对映体,其对映体过量很高。绝对构型直接通过X射线结构测定来确定。所获得的结果表明,对于大多数测试的微
生物,醇的构型发生了转化,其位置2的取代基(甲基到苯基)发生了变化,而且在位置6的
溴原子的存在下。位于离前手性中心很远的芳香环。