Title: Production of Rentene-nitriles
Application Number: 95196943 Application Date: 1995.12.12
Publication Number: 1170403 Publication Date: 1998.01.14
Approval Pub. Date: 2001.09.05 Granted Pub. Date: 2001.09.05
International Classifi-cation: C07C253/00;C07C255/07
Applicant(s) Name: Rhone-Poulenc Fiber and Resin Intermediates Address:
Inventor(s) Name: A-M. Le Govic;I. Storet
Attorney & Agent: WANG JIE
Abstract:
    The present invention relates to a process for producing pentene-nitriles. The pentene-nitriles, more particularly 3-pentene-nitrile and 4-pentene-nitrile, may give adiponitrile by reaction with hydrogen cyanide. More particularly, the invention relates to a process for preparing pentene-nitriles by implementing in vapor phase 2-methylglutarimide or ethylsuccinimide in the presence of a solid acid catalyst. 2-methylglutarimide may be implemented directly or in the form of one of the precursors thereof, such as particularly 4-cyanovaleramide, 2-methyl 4-cyanobutyramide, 4-cyanovaleric acid, 2-methyl 4-cyanobutyric acid. Likewise, ethylsuccinimide may be implemented directly or in the form of one of the precursors thereof, such as particularly 3-cyanovaleramide, 2-ethyl 3-cyanopropionamide, 3-cyanovaleric acid, 2-ethyl 3-cyanopropionic acid.
Time: 4