Production of dihydroxydiphenyl alkanes
US4091038A · kind A · utility
0Cited by
5References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 1977 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Mar 24, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Iodine is employed as a promoter for the reaction between phenol and a 1,2-dihaloethane wherein the halogen is chlorine, bromine or iodine using a zinc-containing catalyst to produce dihydroxydiphenylethanes, especially the 4,4'-isomer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.