Indene compound and novel process for producing indene compounds
US4366328A · kind A · utility
10Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1979 |
| Grant date | Dec 28, 1982 |
| Priority date | — |
| Expiry date | Nov 26, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2602/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Indene compounds of the formula ##STR1## wherein X represents a hydrogen atom, a halogen atom, a hydroxyl group or a methyl group, and PA1 y is 0 or an integer of 1 to 3, are produced by either heat-decomposing indene compounds of the formula ##STR2## wherein X and y are as defined, in the presence of an acid or alkaline catalyst; or heat-decomposing isopropenyl phenols of the formula ##STR3## wherein X and y are as defined, PA1 or oligomers or polymers thereof in the presence of an acid catalyst. 5-Hydroxy-1,1,3-trimethyl-2-indene corresponding to formula (III) is a novel compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.