Document Type and Number:
Japanese Patent JPH07506343
Kind Code:
A
Abstract:
PCT No. PCT/EP93/00239 Sec. 371 Date Aug. 8, 1994 Sec. 102(e) Date Aug. 8, 1994 PCT Filed Feb. 3, 1993 PCT Pub. No. WO93/16042 PCT Pub. Date Aug. 19, 1993.The invention relates to a process for producing pyrrolidone and N-alkyl pyrrolidones from saturated or unsaturated 1,4-dicarboxylic acids or their anhydrides, hydrogen, and a primary amine, characterized in that the dicarboxylic acid or its anhydride is allowed to react in an appropriate reactor with hydrogen or ammonia via a first catalyst bed and the unisolated intermediate product is subsequently reacted with the primary amine or ammonia directly via a second, downstream catalyst bed.
Application Number:
JP51373493A
Publication Date:
July 13, 1995
Filing Date:
February 03, 1993
Export Citation:
International Classes:
B01J23/86; B01J29/035; B01J29/08; B01J29/83; B01J29/85; C07B61/00; C07D201/08; C07D207/267; C07D315/00; (IPC1-7): C07D201/08; B01J23/86; B01J29/08; C07D207/267