| 发明名称 |
PRODUCTION METHOD OF 3,4-DICHLORE-1,2,5-THIADIAZOLE |
| 摘要 |
3,4-di:chloro-1,2,5-thia-diazole is prepd. by formation of a cyclic cpd. from and by chlorination of amino-aceto-nitrile in salt form, namely hydrochloride or mixed HSO4-, SO4(2-) form using sulphur di-chloride as chlorinating agent. This is prepd. in situ from sulphur monochloride and chorine in the presence of catalytic quantities of anhydr. FeCl3. Yield: 90-92% and purity 97-99%
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| 申请公布号 |
RO100031(A2) |
申请公布日期 |
1990.07.26 |
| 申请号 |
RO19880135257 |
申请日期 |
1988.09.26 |
| 申请人 |
INSTITUTUL DE CERCETARI CHIMICO-FARMACEUTICE, BUCURESTI, RO |
发明人 |
CILIANU STELIANA,RO;VISAN NICOLAE,RO;ILIE CORINA,RO;PUTIN GABRIELA,RO;BURGHELEA TEODOR,RO;IONESCU M. SIMINA,RO |
| 分类号 |
C07D285/10;(IPC1-7):C07D285/10 |
主分类号 |
C07D285/10 |
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