Process for the preparation of 3-(.alpha.-methoxy)methylenebenzofuranones and intermediates therefor
US5760250A · kind A · utility
12Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently hydrogen, halogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acetoxy or acyl, and processes for preparing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.