公开(公告)号：CA2984382A1

公开(公告)日：2016-11-10

申请号：CA2984382

申请日：2016-05-04

Applicant: BASF SE

Inventor： SCHAUB THOMAS ,  BAUMANN ROBERT ,  PACIELLO ROCCO ,  GERMAIN NICOLAS

IPC: C07C263/04 ,  C07C265/12 ,  C07C265/14 ,  C07C269/04 ,  C07C271/28

Abstract: The present invention relates to a process for the preparation of an isocyanate compound comprising the steps of: a) Reacting an amine compound A having at least one primary amino group with CO2 and an organotin compound S having at least one radical OR3 attached to the tin atom of the organotin compound, wherein R3 is a C-bound organic radical having from 1 to 30 carbon atoms, wherein 1, 2 or 3 carbon atoms may be replaced by oxygen or nitrogen, to convert at least one of the primary amino groups in the amine compound A into a carbamate group, thereby obtaining a carbamate compound C; b) cleavage of the carbamate groups in the carbamate compound C obtained in step a) to form the isocyanate compound and an alcohol R3OH, without separation of the tin compound formed in step a); c) obtaining the isocyanate compound from the reaction mixture of step b).