Process for the preparation of benzopyran compounds
US6048983A · kind A · utility
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6Claims
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Key dates
| Filing date | Feb 8, 1999 |
| Grant date | Apr 11, 2000 |
| Priority date | — |
| Expiry date | Feb 8, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing certain substituted benzopyran compounds is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.