Process for preparing para-substituted halogenobenzene derivatives
US4914247A · kind A · utility
6Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 1989 |
| Grant date | Apr 3, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A para-substituted halogenobenzene derivative is prepared by halogenating a benzene derivative in the liquid phase in the presence of a molded zeolite catalyst body comprising, based on the weight of the molded zeolite catalyst body, 10 to 95% by weight of an L-type zeolite as the anhydrous state and 5 to 90% by weight of amorphous silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.