Process for the preparation of (2,2)-paracyclophane and derivatives thereof
US4816608A · kind A · utility
29Cited by
3References
17Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 26, 1987 |
| Grant date | Mar 28, 1989 |
| Priority date | — |
| Expiry date | Jun 26, 2007 |
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-methylbenzyl-trimethylammonium hydroxide or derivatives thereof, in an aqueous solution of an alkali metal hydroxide, wherein said elimination is carried out in the presence of a compound of the formula (I): EQU Y--A--(X).sub.n (I) wherein A represents an aromatic group, Y an electron donor group, X an electron acceptor group, and n is an integer from 1 to 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.