申请人:Imperial Chemical Industries PLC
公开号:US05280125A1
公开(公告)日:1994-01-18
A process for the preparation of a 3-alkylated indole, which comprises: a) reacting a N-(2-nitrostyryl) enamine with an alkylating agent to afford an imine salt, b) optionally reacting the imine salt with water to afford a (2-nitrophenyl)acetaldehyde, and c) reacting the imine salt or the (2-nitrophenyl)acetaldehyde with a reducing agent capable of selectively reducing the nitro group, to afford the desired 3-alkylated indole.
制备3-烷基吲哚的方法包括:a) 将N-(2-硝基苯乙烯基)烯胺与烷基化试剂反应,形成亚胺盐,b) 可选地将亚胺盐与水反应,形成(2-硝基苯基)乙醛,以及c) 将亚胺盐或(2-硝基苯基)乙醛与能够选择性还原硝基的还原剂反应,形成所需的3-烷基吲哚。