申请人:Parthasaradhi Reddy Bandi
公开号:US20070260090A1
公开(公告)日:2007-11-08
The present invention relates to a process for highly stereoselective synthesis of sertraline and sertraline intermediate. Thus, the mixture of 4-(3,4-Dichlorophenyl)-3,4-dihydro-N-methyl-1(2H)-naphthalenimine, 5% Pd/CaCO
3
, water and methanol is taken in a hydrogenation flask and then subjected to hydrogenation under a hydrogen pressure of 0.5 Kg at 20-35° C. for 3 hours 30 minutes. The catalyst is removed by filtration and the solvent is evaporated completely under vacuum to obtain cis-(±)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-N-methyl-naphthalen amine. (trans-(±): 0.2).
本发明涉及一种高立体选择性合成舍曲林和舍曲林中间体的过程。因此,将4-(3,4-二氯苯基)-3,4-二氢-N-甲基-1(2H)-萘亚胺、5% Pd/CaCO3、水和甲醇混合物放入氢化烧瓶中,然后在0.5千克的氢气压力下,在20-35℃下进行3小时30分钟的氢化。通过过滤除去催化剂,然后在真空下完全蒸发溶剂,得到顺式-(±)-4-(3,4-二氯苯基)-1,2,3,4-四氢-N-甲基-萘胺。(反式-(±): 0.2)。