Substituted pentaalkylchromans
US5310953A · kind A · utility
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11Claims
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Key dates
| Filing date | Mar 5, 1993 |
| Grant date | May 10, 1994 |
| Priority date | — |
| Expiry date | Mar 5, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/58
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The substituted pentaalkylchromans of the general formula: ##STR1## wherein R denotes a lower alkyl group having 1 to 4 C atoms and Hal denotes chlorine, bromine or iodine, are novel intermediates for the preparation of hypolipidaemic pharmaceuticals. A process for their preparation is described in which a trialkylhydroquinone is reacted with a halogenated butenol to give a substituted tetraalkylhydroquinone, which is finally cyclized to the final product.
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