Novel indene compound and novel process for producing indene compounds
US4418220A · kind A · utility
2Cited by
10References
1Claims
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Key dates
| Filing date | Mar 24, 1982 |
| Grant date | Nov 29, 1983 |
| Priority date | — |
| Expiry date | Mar 24, 2002 |
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 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, 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.