Catalyzed liquid phase fluorination of 1230za
US6166274A · kind A · utility
28Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/206
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A liquid phase process is provided for the preparation of 1233zd with reduced oligomer formation via the fluorination of 1230za with HF in the presence of a catalyst selected from TFA and triflic acid. The 1233zd is a known intermediate useful for preparing 245fa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.