发明名称 |
PROCESS FOR PRODUCING FLUORINE COMPOUND |
摘要 |
It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction. <??>A compound (1) such as ethyl 4-oxocyclohexanecarboxylate is reacted with a compound of the formula X-Z or a compound of the formula Z2O (wherein Z is a monovalent group which gives a leaving group of the structure -OZ, and X is a chlorine atom, a bromine atom or an iodine atom) such as phosphorus pentachloride, and then a fluorinating agent which generates fluorine anions such as HF is acted thereon to obtain a fluorine-containing compound (2) such as ethyl 4,4-difluorocyclohexanecarboxylate. <CHEM>
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申请公布号 |
EP1364938(A1) |
申请公布日期 |
2003.11.26 |
申请号 |
EP20020710438 |
申请日期 |
2002.01.31 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
WANG, SHUZHONG;HAYASHI, KAZUHIKO;KAGA, SHINSUKE;OHARU, KAZUYA |
分类号 |
C07B39/00;C07C17/04;C07C17/18;C07C67/307;(IPC1-7):C07C67/307;C07C67/37;C07C69/757;C07C69/635;C07C69/75 |
主分类号 |
C07B39/00 |
代理机构 |
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地址 |
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