发明申请
- 专利标题: CHEMICAL PROCESS FOR THE PRODUCTION OF HALOALKENONE ETHERS
- 专利标题(中): 化学工艺生产哈洛酮类化合物
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申请号: US13254795申请日: 2010-03-02
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公开(公告)号: US20120095265A1公开(公告)日: 2012-04-19
- 发明人: David Anthony Jackson , Florian Schleth , Devender Singh Negi , Werner Pfaff
- 申请人: David Anthony Jackson , Florian Schleth , Devender Singh Negi , Werner Pfaff
- 申请人地址: US NC Greensboro
- 专利权人: SYNGENTA CROP PROTECTION, LLC
- 当前专利权人: SYNGENTA CROP PROTECTION, LLC
- 当前专利权人地址: US NC Greensboro
- 优先权: GB0903749.0 20090304
- 国际申请: PCT/EP10/01267 WO 20100302
- 主分类号: C07C45/00
- IPC分类号: C07C45/00
摘要:
The present invention relates to a continuous process for producing a haloalkenone ether of the Formula (I) wherein R1 is C1-C6 haloalkyl, R2 is a C1-C6 alkyl or phenyl, the process comprising:—(i) reacting, in a first continuous stirred tank reactor comprising a solvent, a halide of Formula (II) wherein R1 is as previously defined and R3 is halogen, with a vinyl ether of Formula (III) wherein R2 is as previously defined, to form an intermediate compound of Formula (IV), wherein the concentration of the vinyl ether of Formula (III) in the reaction mass is 15% or less w/w; and (ii) transferring the reaction mass from the first continuous stirred tank reactor into a subsequent continuous stirred tank reactor, wherein the conditions within the subsequent reactor permit the elimination of hydrogen halide (HR3) from the intermediate compound of Formula (IV) to provide the haloalkenone ether of Formula (I).
公开/授权文献
- US08552222B2 Chemical process for the production of haloalkenone ethers 公开/授权日:2013-10-08
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