Process for para-methylolating phenol compounds
US5220079A · kind A · utility
1Cited by
4References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 24, 1992 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Apr 24, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C37/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing phenols with high selectivities, comprising reacting a phenol compound and a formaldehyde source with a quaternary ammonium as a counter cation of a phenol anion in the presence of an alcoholic organic solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.