摘要:
A process for the preparation of 2-[dimethylamino-(4-methoxyphenyl)ethyl]-cyclohexanol of formula 1 by reducing 1-[cyano(4-methoxyphenyl)-methyl]cyclohexanol of formula 2 with a formylating agent in a protic solvent in the presence of a catalyst, removing the catalyst by filtration, isolating and purifying the compound of formula 1 is disclosed.
摘要:
A process for the preparation of 1-[(cyano) aryl methyl] cyclohexanol of the general formula 1 (1a-d) by reacting cyclohexanone with the carbanions of an aryl acetonitrile of the general formula 3 (3a-d), a) R1=H, R2=H b) R1=OMe R2=H c) R1=OMe R2=OMe d) R1=OMe R2=cyclopentyloxy using a base, isolating the compound of formula 1 and purifying the compound of formula 1a-d by crystallisation is disclosed.
摘要翻译:通过使环己酮与通式3(3a-d)的芳基乙腈的碳阴离子反应制备通式1(1a-d)的1 - [(氰基)芳基甲基]环己醇的方法,a)R1 公开了通过结晶分离式1化合物和纯化式1a-d的化合物的方法,其中R 1 = OMe R 2 = OMc)R 1 = OMe R 2 =使用碱的环戊氧基。
摘要:
The present invention relates to a process for the preparation of 4-(R)-hydroxycyclopent-2-en-1 (S)-acetate of the formula 2 by reacting meso-cyclopent-2-en-1, 4-diacetate of formula 1 with a whole cell enzyme in a mixture of a buffer and an organic solvent, filtering the reaction mixture to remove the enzyme, extracting the resultant compound with an organic solvent, and removing the solvent to obtain the desired product.