申请人:Mitsubishi Chemical Industries Limited
公开号:US04837337A1
公开(公告)日:1989-06-06
Disclosed herein is a process for producing a pyrrolidone derivative represent by the general formula (I): ##STR1## wherein R is an organic residue obtained by removing hydroxy radical from a C.sub.1-10 primary alcohol, C.sub.1-10 secondary alcohol or derivative thereof, comprising (1) reacting 2-pyrrolidone with acetaldehyde in the presence of a catalyst, thereby obtaining N-(.alpha.-hydroxyethyl)pyrrolidone, and (2) reacting the thus obtained N-(.alpha.-hydroxyethyl)pyrrolidone with a primary alcohol, a secondary alcohol or a derivative thereof in the presence of an acidic catalyst to obtain the pyrrolidone derivative.
本文公开了一种制备由一般式(I)表示的吡咯烷酮衍生物的过程:##STR1## 其中R是通过从C.sub.1-10一级醇,C.sub.1-10二级醇或其衍生物中去除羟基基团而获得的有机残基,包括(1)在催化剂存在下将2-吡咯烷酮与乙醛反应,从而获得N-(α-羟乙基)吡咯烷酮,以及(2)在酸性催化剂存在下将所得的N-(α-羟乙基)吡咯烷酮与一级醇,二级醇或其衍生物反应,以获得吡咯烷酮衍生物。