| 发明名称 |
PROCESS FOR THE MANUFACTURE OF SUBSTITUTED 3-HYDROXY- 1,2,4-TRIAZOLES |
| 摘要 |
<p>Manufacture of 3-hydroxy-1,2,4-triazoles by reacting hydrazines with urea or alkali or ammonium cyanates and cyclization of the corresponding semicarbazides by means of formic acid in the presence of an inorganic acid. The triazoles arc known intermediates for insecticides.</p> |
| 申请公布号 |
CA1183543(A) |
申请公布日期 |
1985.03.05 |
| 申请号 |
CA19820400713 |
申请日期 |
1982.04.08 |
| 申请人 |
HOECHST AKTIENGESELLSCHAFT |
发明人 |
KOCH, MANFRED;STAHLER, GERHARD |
| 分类号 |
C07D249/12;(IPC1-7):C07D249/12 |
主分类号 |
C07D249/12 |
| 代理机构 |
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