发明名称 |
Preparation of urethane from nitrogen compound and carbon mon:oxide |
摘要 |
Urethane compounds are prepared by reaction of organic nitrogen compounds with carbon monoxide in the presence of organic compound(s) containing hydroxyl (OH) group(s), using a catalyst system (A) and/or (B). (A)comprises (a) a sub-group VIII metal compound, (b) a bisphosphane of formula (I) and (c) protonic and/or Lewis acid(s). (B) comprises a compound of formula (II). R1-R4 = aliphatic, cycloaliphatic, alkylaryl or arylalkyl, (all with C atoms optionally replaced by hetero-atoms; and PR1R2 and/or PR3R4 may form a ring; M = a sub-group VIII metal; L1, L2 = weakly co-ordinating ligands, organic acid group ligands, alkyl, aralkyl, allyl substituents or halide ligands; X = a weakly co-ordinating anion; n = 0-2. Also claimed is a method of preparing isocyanates by thermal splitting of the urethanes obtained.
|
申请公布号 |
DE19621028(A1) |
申请公布日期 |
1997.11.27 |
申请号 |
DE19961021028 |
申请日期 |
1996.05.24 |
申请人 |
BASF AG, 67063 LUDWIGSHAFEN, DE |
发明人 |
DAHLHAUS, JUERGEN, DR., 67117 LIMBURGERHOF, DE;HOEHN, ARTHUR, DR., 67281 KIRCHHEIM, DE |
分类号 |
B01J31/24;C07C269/00;(IPC1-7):C07C271/06;C07C271/08;C07C265/00;C07C263/04 |
主分类号 |
B01J31/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|