Processes for preparing 1,1,2,3-tetrachloropropene
US8258355B2 · kind B2 · utility
35Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Jul 24, 2008 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | May 11, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C21/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a continuous process for preparing 1,1,2,3-tetrachloro-1-propene having the steps of catalytically dehydrochlorinating CH2ClCCl2CH2Cl in the gas phase to produce CHCl═CClCH2Cl; chlorinating the CHCl═CClCH2Cl to form CHCl2CCl2CH2Cl; and catalytically dehydrochlorinating the CHCl2CCl2CH2Cl in the gas phase to form CCl2═CClCH2Cl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.