Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran
US4324731A · kind A · utility
2Cited by
4References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 7, 1980 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Nov 7, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/86
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for the preparation of 2,3-dihydro-2,2-dimethyl-7-hydroxybenzofuran from ortho-methallyloxyphenol or ortho-methallylpyrocatechol. It consists in heating ortho-methallyloxyphenol or ortho-methallylpyrocatechol in the presence of an aluminum derivative. 2,3-Dihydro-2,2-dimethyl-7-hydroxybenzofuran can be used for the synthesis of carbofuran, which is a polyvalent insecticide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.