Title:
【発明の名称】2,3,5,6-テトラハロゲンキシリリデン化合物の製造方法
Document Type and Number:
Japanese Patent JP2003523966
Kind Code:
A
Abstract:
The invention relates to a process for preparing 2,3,5,6-tetrahaloxylylidene compounds of formula (I) where each Hal is independently fluorine or chlorine, and X is fluorine, chlorine, bromine, -O-R, or -O-C(=O)R, where R is hydrogen, a straight-chain or branched C1-C12-alkyl- or a C6-C14-aryl radical, by reacting 2,3,5,6-tetrahaloxylylidenediamines of formula (II) with an alkyl nitrite and/or nitrous acid in HX as a solvent.
Inventors:
Langer, Reinhard
Rodefert, Rals
Rodefert, Rals
Application Number:
JP2001555009A
Publication Date:
August 12, 2003
Filing Date:
January 17, 2001
Export Citation:
Assignee:
Bayer Aktiengesellschaft
International Classes:
C07C29/09; C07B61/00; C07C17/093; C07C33/46; C07C69/767; C07C209/48; C07C211/29; (IPC1-7): C07C29/09; C07C33/46; C07C209/48; C07C211/29
Domestic Patent References:
| JPS59163332A | 1984-09-14 | |||
| JPS59163331A | 1984-09-14 | |||
| JPS59157039A | 1984-09-06 | |||
| JPS591448A | 1984-01-06 |
Foreign References:
| GB2127013A | 1984-04-04 |
Attorney, Agent or Firm:
Heiyoshi Odashima
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