[EN] A PROCESS FOR PREPARATION OF PHENETHYLAMINE DERIVATIVE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉ DE PHÉNÉTHYLAMINE
申请人:HIKAL LTD
公开号:WO2010100520A1
公开(公告)日:2010-09-10
The present invention relates to a process for the preparation of 1-[2-amino-1-(4-substituted phenyl)ethyl]cyclohexanol (3) (where R is OMe, OH), said process comprising the steps of; subjecting a reaction mixture of substituted phenylacetonitrile (2) in alcohol, an organic acid, and a hydrogenating catalyst in the presence of hydrogen gas pressure in the range of 0.5 kg/cm2 to 30 kg/cm2 and temperature in the range of 0-100°C; filtering and concentrating the cooled reaction mixture to obtain an acid addition salt of 1-[2-amino-1-(4-substituted phenyl)ethyl]cyclohexanol (4); and treating the acid addition salt of 1-[2-amino-1-(4-substituted phenyl)ethyl]cyclohexanol (4) with an ester in presence of a base to obtain 1-[2-amino-1-(4-substituted phenyl) ethyl] cyclohexanol (3).
本发明涉及一种制备1-[2-氨基-1-(4-取代苯基)乙基]环己醇(3)(其中R为OMe、OH)的过程,该过程包括以下步骤:在0.5千克/平方厘米至30千克/平方厘米的氢气压力范围和0-100°C的温度范围内,将取代苯基乙腈(2)、醇、有机酸和加氢催化剂的反应混合物在氢气压力下进行反应;过滤和浓缩冷却后的反应混合物,以获得1-[2-氨基-1-(4-取代苯基)乙基]环己醇(4)的酸盐;并将1-[2-氨基-1-(4-取代苯基)乙基]环己醇(4)的酸盐与酯在碱的存在下处理,以获得1-[2-氨基-1-(4-取代苯基)乙基]环己醇(3)。