C-alkylation of hydroquinone or monoethers thereof
US5132468A · kind A · utility
2Cited by
2References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 18, 1991 |
| Grant date | Jul 21, 1992 |
| Priority date | — |
| Expiry date | Jan 18, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/115
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The alkyl hydroquinones, e.g., methyl hydroquinone (a useful intermediate in the preparation of the monomer methyl hydroquinone diacetate, itself used for the synthesis of thermotropic polymers), are prepared by reacting (C-alkylating) hydroquinone or a monoether thereof with a lower alkanal, in the vapor phase, with a catalytically effective amount of at least one solid metal oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.