发明名称 |
Synthesis of penta-substituted guanidines |
摘要 |
The present invention is the novel synthesis of sterically hindered penta-substituted guanidines by a process in which (1a) an isocyanate is reacted first with a di-substituted amine or (1b) a urea is reacted with two moles of a mono-substituted amine to form a tri-substituted urea followed by (2) treatment of the tri-substituted urea with an activating agent before reacting with a second di-substituted amine in the presence of a base.
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申请公布号 |
US5696290(A) |
申请公布日期 |
1997.12.09 |
申请号 |
US19940304322 |
申请日期 |
1994.09.12 |
申请人 |
MONSANTO COMPANY |
发明人 |
RUETTIMANN, KENNETH W.;MCGHEE, WILLIAM D.;SOLODAR, A. JOHN |
分类号 |
C07C273/18;C07C275/26;C07C277/08;C07C279/16;(IPC1-7):C07C277/08 |
主分类号 |
C07C273/18 |
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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