Selective monomethylation of phenolic compounds
US5082978A · kind A · utility
0Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | May 9, 1991 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | May 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C41/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Mono-, di- and triphenols are selectively monomethylated by reaction with para-dimethoxybenzene in the presence of a catalytically effective amount of an acid catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.