发明名称 |
PROCESS FOR PREPARING ISOCYANATE COMPOUND |
摘要 |
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). |
申请公布号 |
WO2016177761(A1) |
申请公布日期 |
2016.11.10 |
申请号 |
WO2016EP59955 |
申请日期 |
2016.05.04 |
申请人 |
BASF SE |
发明人 |
SCHAUB, Thomas;BAUMANN, Robert;PACIELLO, Rocco;GERMAIN, Nicolas |
分类号 |
C07C263/04;C07C265/12;C07C265/14;C07C269/04;C07C271/28 |
主分类号 |
C07C263/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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