Process for the preparation of (2,2)-paracyclophane and derivatives thereof
US4734533A · kind A · utility
27Cited by
3References
11Claims
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Assignee
Inventors
Key dates
| Filing date | Dec 12, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Dec 12, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2603/92
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of (2,2)-paracyclophane or derivatives thereof by the Hofmann elimination of p.-methylbenzyltrimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a ketone of the formula: EQU Ch.sub.3 --CO--CH.sub.2 --R (I) wherein R is hydrogen, a halogen, or an alkyl-carboxylic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.