发明授权
- 专利标题: Process for forming a fluoromethyl ketone
- 专利标题(中): 形成氟甲基酮的方法
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申请号: US29894申请日: 1993-03-11
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公开(公告)号: US5344939A公开(公告)日: 1994-09-06
- 发明人: James T. Palmer
- 申请人: James T. Palmer
- 申请人地址: CA Dublin
- 专利权人: Prototek, Inc.
- 当前专利权人: Prototek, Inc.
- 当前专利权人地址: CA Dublin
- 主分类号: B01J23/40
- IPC分类号: B01J23/40 ; C07B41/12 ; C07B45/00 ; C07B61/00 ; C07C45/41 ; C07C45/67 ; C07C49/753 ; C07C67/10 ; C07C67/343 ; C07C69/63 ; C07C69/716 ; C07C69/738 ; C07C205/43 ; C07C221/00 ; C07C225/06 ; C07C227/02 ; C07C229/22 ; C07C271/18 ; C07C271/20 ; C07C271/22 ; C07C279/14 ; C07C303/26 ; C07C309/73 ; C07C327/22 ; C07D207/08 ; C07D207/26 ; C07D207/273 ; C07D307/33 ; C07S207/16 ; C07C67/30 ; C07C327/26
摘要:
The preparation of magnesium benzyl fluoromalonate and other equivalent materials, the synthetic equivalents of the --CH.sub.2 F moiety, is described. Reaction between these reagents and the in situ-formed imidazolides of various carboxylic acids gives beta-keto-alpha-fluoroesters, which upon hydrogenation and spontaneous decarboxylation yields fluoromethyl ketones in excellent yields. The overall transformation from RCOOH to RCOCH.sub.2 F is thus illustrated.
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