Catalytic C-alkylation of ketones
US5618982A · kind A · utility
1Cited by
4References
56Claims
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Key dates
| Filing date | Nov 22, 1994 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Nov 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/1806
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Ketones having at least one hydrogen atom or ester group in the .alpha.-position with respect to a ketonic carbonyl group thereof, for example cyclopentanone, 2-methylcyclopentanone and other substituted cyclopentanones, are effectively C- or .alpha.-alkylated, especially on an industrial scale, by reacting same with an alkylating agent in the presence of a catalytically effective amount of a condensed or uncondensed orthophosphate anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.