Title:
4-メチル-2,3,5,6-テトラフルオロベンジルアルコールの製造
Document Type and Number:
Japanese Patent JP4058339
Kind Code:
B2
Abstract:
A process for the preparation of 1,4-bis(hydroxymethyl)-2,3,5,6-tetrafluorobenzene comprising fluorinating 2,3,5,6-tetrachloroterephthalonitrile to obtain 2,3,5,6-tetrafluoroterephthalonitrile, hydrogenating 2,3,5,6-tetrafluoroterephthalonitrile to give 1,4-bis(aminomethyl)-2,3,5,6-tetrafluorobenzene and converting 1,4-bis(aminomethyl)-2,3,5,6-tetrafluorobenzene to 1,4-bis(hydroxymethyl)-2,3,5,6-tetrafluorobenzene.
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Inventors:
The Jons, Raymond, Vincent, Have On
Application Number:
JP2002537700A
Publication Date:
March 05, 2008
Filing Date:
October 18, 2001
Export Citation:
Assignee:
Syngenta Limited
International Classes:
C07C29/09; C07B61/00; C07C29/86; C07C33/46; C07C67/14; C07C69/007; C07C69/747; C07C209/48; C07C211/29
Domestic Patent References:
| JP51006940A | ||||
| JP59001448A | ||||
| JP59157039A | ||||
| JP2000086583A | ||||
| JP60184035A | ||||
| JP2000125A | ||||
| JP2003523966A | ||||
| JP2002020332A |
Attorney, Agent or Firm:
Takao Hamano
Morita Tetsuji
Morita Tetsuji