Invention Grant
- Patent Title: Process for the synthesis of 3-hydroxyglutaronitrile
- Patent Title (中): 合成3-羟基戊二腈的方法
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Application No.: US12518317Application Date: 2007-12-11
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Publication No.: US08268960B2Publication Date: 2012-09-18
- Inventor: Jelena Cirakovic
- Applicant: Jelena Cirakovic
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Agent Kevin S. Dobson
- International Application: PCT/US2007/025298 WO 20071211
- International Announcement: WO2008/073411 WO 20080619
- Main IPC: C08G73/06
- IPC: C08G73/06 ; C07C253/30
Abstract:
A high yield and high productivity processes for preparing 3-hydroxyglutaronitrile by reacting an epihalohydrin or a 4-halo-3-hydroxy-butanenitrile, or analogous compound containing a different leaving group, with cyanide (CN—) in the presence of water and an ionic liquid. The use of an ionic liquid as a cosolvent with water results in increased productivity and selectivity.
Public/Granted literature
- US20100029898A1 PROCESS FOR THE SYNTHESIS OF 3-HYDROXYGLUTARONITRILE Public/Granted day:2010-02-04
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