Process for the condensation of carbonyl and aromatic compounds
US4777301A · kind A · utility
7Cited by
4References
53Claims
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Key dates
| Filing date | Jun 25, 1986 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Jun 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An aldehyde or ketone is condensed with an aromatic compound by contacting the aldehyde or ketone and the aromatic compound with a non-zeolitic molecular sieve, which has in its calcined form an adsorption of isobutane of at least about 2 percent by weight of the non-zeolitic molecular sieve at a partial pressure of 500 torr and a temperature of 20.degree. C. Among the condensations which can be effected is the condensation of acetone with phenol to produce bisphenol A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.