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公开(公告)号:EP2270554A4
公开(公告)日:2013-01-09
申请号:EP09734219
申请日:2009-04-24
申请人: ASAHI GLASS CO LTD
发明人: FUKAWA MAKOTO , TANAKA KENICHI , KAGA SHINSUKE
CPC分类号: G02B1/11 , C03C17/3441 , C03C27/048 , C03C2217/734 , C03C2217/78 , Y10T428/24942 , Y10T428/31786
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2.
公开(公告)号:EP1364938A4
公开(公告)日:2005-01-19
申请号:EP02710438
申请日:2002-01-31
申请人: ASAHI GLASS CO LTD
发明人: WANG SHUZHONG , HAYASHI KAZUHIKO , KAGA SHINSUKE , OHARU KAZUYA
IPC分类号: C07B39/00 , C07C17/04 , C07C17/18 , C07C67/307 , C07C67/37 , C07C69/635 , C07C69/75 , C07C69/757
CPC分类号: C07C17/18 , C07B39/00 , C07C17/04 , C07C67/307 , C07C69/75
摘要: A method of synthesizing in a high yield the target fluorine compound having a geminal-difluoro structure by subjecting an easily available carbonyl compound to a two-stage reaction. A compound (1) such as ethyl 4-oxocyclohexanecarboxylate is reacted with either a compound represented by the formula X-Z, such as phosphorus pentachloride, or a compound represented by the formula Z2O (wherein Z is a monovalent group which gives a leaving group of the structure -OZ; and X is chlorine, bromine, or iodine). Subsequently, a fluorinating agent which generates a fluorine anion, such as HF, is caused to act on the reaction product to obtain a fluorine compound (2) such as ethyl 4,4-difluorocyclohexanecarboxylate.
摘要翻译: 通过使容易获得的羰基化合物进行两阶段反应,以高收率合成具有偕 - 二氟结构的目标氟化合物的方法。 使诸如4-氧代环己烷羧酸乙酯的化合物(1)与由式XZ表示的化合物如五氯化磷或由式Z2O表示的化合物反应(其中Z是给出该化合物的离去基团的一价基团 结构-OZ;并且X是氯,溴或碘)。 随后,使产生HF等氟阴离子的氟化剂作用于反应生成物,得到4,4-二氟环己烷羧酸乙酯等氟化合物(2)。
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