Title:
PROCESS FOR PRODUCTION OF PERFLUOROALKADIENES
Document Type and Number:
WIPO Patent Application WO/2001/051436
Kind Code:
A1
Abstract:
A process for producing perfluoroalkadiene compounds of the general formula (I): CF¿2?=CF-(CF¿2?)¿n-4?-CF=CF¿2? (wherein n is an integer of 4 to 20) by deiodofluorination of compounds of the general formula (II): I-(CF¿2?)¿n?-I (wherein n is as defined above), characterized in that the deiodofluorination is conducted in the presence of metallic zinc and a nitrogen-containing organic compound.
Inventors:
MIKI JUN (JP)
YOSHIMI HITOSHI (JP)
AOYAMA HIROKAZU (JP)
YOSHIMI HITOSHI (JP)
AOYAMA HIROKAZU (JP)
Application Number:
PCT/JP2000/009392
Publication Date:
July 19, 2001
Filing Date:
December 28, 2000
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
MIKI JUN (JP)
YOSHIMI HITOSHI (JP)
AOYAMA HIROKAZU (JP)
MIKI JUN (JP)
YOSHIMI HITOSHI (JP)
AOYAMA HIROKAZU (JP)
International Classes:
C07B61/00; C07C17/23; C07C21/19; B01J31/26; C07C21/20; (IPC1-7): C07C17/23; C07C21/02
Foreign References:
| EP0205892A1 | 1986-12-30 | |||
| EP0270956A1 | 1988-06-15 |
Other References:
BLANCOU H. ET AL.: "Reactivite des perfluorohalogenoalcanes en presence de couples metalliques-II", TETRAHEDRON, vol. 33, no. 16, 1977, pages 2061 - 2067, XP002937474
See also references of EP 1247791A4
See also references of EP 1247791A4
Attorney, Agent or Firm:
Saegusa, Eiji (Doshomachi Chuo-ku Osaka-shi, Osaka, JP)
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