发明名称 |
Verfahren zur Herstellung von aromatischen Thiocarbonsäureamiden oder heterocyclischen Thiocarbonsäureamiden mit aromatischem Charakter |
摘要 |
<p>Prepn. of thioamides from aromatic cpds. contng. a dihalomethyl group. The aromatic thioamides formed have Ar is aromatic in which the -CS group is directly attached to an aromatic ring. The method gives a cheap and convenient procedure for the prepn. of thioamides, which are used as intermediates for herbicides. ArCHX2+S+3NH3 (I)+2NH4X X = Cl, Br or iodine. The reaction is pref. carried out in the presence of a metal oxide such as calcium oxide or sodium hydroxide to take up HX and release ammonia for further reaction. An amine can be used in pace of ammonia.</p> |
申请公布号 |
CH494752(A) |
申请公布日期 |
1970.08.15 |
申请号 |
CH19670017742 |
申请日期 |
1967.12.19 |
申请人 |
BADISCHE ANILIN- & SODA-FABRIK AKTIENGESELLSCHAFT |
发明人 |
BECKE,FRIEDRICH,DR.;HAGEN,HELMUTH,DR. |
分类号 |
C07D295/10;(IPC1-7):C07C153/05 |
主分类号 |
C07D295/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|