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
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