发明名称 |
Synthesis of isocyanate precursors from primary formamides |
摘要 |
A selective process for the production of unsymmetric carbamates and ureas is disclosed. In the process, a primary formamide is reacted with a dialkyl amine or an alcohol in the presence of a Group VIII transition metal catalyst. The unsymmetric carbamates and ureas are useful precursors to isocyanates.
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申请公布号 |
US5155267(A) |
申请公布日期 |
1992.10.13 |
申请号 |
US19910782027 |
申请日期 |
1991.10.24 |
申请人 |
ARCO CHEMICAL TECHNOLOGY, L.P. |
发明人 |
FARAJ, MAHMOUD K. |
分类号 |
C07C269/00;C07C273/18;C07C275/28 |
主分类号 |
C07C269/00 |
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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