发明名称 |
Process for the preparation of 4-mercaptobenzonitriles, and 4-mercaptobenzonitriles |
摘要 |
4-Mercaptobenzonitriles are prepared by reacting the appropriate 4-halogenobenzonitrile with sodium sulfide or sodium hydrogen sulfide in the presence of an inert organic solvent, and subsequently acidifying. The 4-mercaptobenzonitriles thus accessible are new, with the exception of the unsubstituted 4-mercaptobenzonitrile, and can be used as intermediates for the preparation of nematic liquid-crystalline products, herbicides and plant-growth regulators.
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申请公布号 |
US4841089(A) |
申请公布日期 |
1989.06.20 |
申请号 |
US19860937935 |
申请日期 |
1986.12.04 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HAGEMANN, HERMANN;SASSE, KLAUS |
分类号 |
C07D239/38;C07C67/00;C07C313/00;C07C319/14;C07C323/62;C07D213/70 |
主分类号 |
C07D239/38 |
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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