Incubation of 1-benzenesulfenyl-2-propanone with Corynebacterium equi IFO 3730 in a weakly acidic medium afforded (S)-1-benzenesulfenyl-2-propanol. On the contrary, when the cultivation was carried out at pH 8 with the same bacterium, only the (S)-alcohol was transformed into the starting ketone, the (R)-alcohol being recovered intact. The similar enantioselectivities were also observed in the reaction of 1-benzenesulfinyl-2-propanone.
在弱酸性
培养基中,将 1-苯磺酰基-2-
丙酮与等球孢杆菌 IFO 3730 培养,可得到 (S)-1-苯磺酰基-2-
丙醇。相反,在 pH 值为 8 的条件下用同一细菌进行培养时,只有(S)-醇转化为起始酮,(R)-醇被完整地回收。在 1-苯亚磺酰基-2-
丙酮的反应中也观察到了类似的对映选择性。