发明名称 |
Preparation of 1,2,4,5 - tetrafluorobenzene |
摘要 |
The invention comprises 4-chlorotetrafluorophenylhydrazine (a) and 4-bromotetrafluorophenylhydrazine (b), these compounds being made by reacting with hydrazine hydrate chloro- or bromo-pentafluorobenzene. Compounds (a) or (b), or pentafluorophenylhydrazine may be reacted with a source of OH- or O-alkylions to give 1,2,4,5-tetrafluorobenzene.
|
申请公布号 |
GB1007846(A) |
申请公布日期 |
1965.10.22 |
申请号 |
GB19630036229 |
申请日期 |
1963.09.13 |
申请人 |
IMPERIAL SMELTING CORPORATION (N.S.C.) LIMITED |
发明人 |
TILNEY-BASSETT JULIAN FRODO |
分类号 |
B01D11/00;C07C17/00;C07C25/13;C09K5/02;G21C5/12 |
主分类号 |
B01D11/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|