公开(公告)号：EP1592659B1

公开(公告)日：2009-07-22

申请号：EP04704260.1

申请日：2004-01-22

Applicant: Invista Technologies S.à.r.l.

Inventor： ROSIER, Cécile ,  KABIR, Hocine ,  MARION, Philippe

IPC: C07C253/10 ,  C07C253/34

CPC classification number: C07C253/10 ,  C07C255/04

Abstract: The invention relates to a method of producing compounds comprising two nitrile functions. More specifically, the invention relates to a method of producing dinitrile compounds from compounds comprising a nitrile function and an ethylenic unsaturation, in the presence of a catalytic system containing an organometallic complex and a Lewis acid-type cocatalyst. The inventive method comprises a step involving treatment of the reaction medium resulting from hydrocyanation, enabling the metallic element to be extracted and recovered from the Lewis acid.