3,4-Dihydro-2-iodomethyl-2,5,7,8-tetramethyl-2H-1-benzopyrans
US5663389A · kind A · utility
2Cited by
1References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1996 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Mar 6, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/72
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention refers to compounds having a benzopyranic structure of general formula I ##STR1## wherein R represents a hydrogen atom or an acyl group, useful as intermediates in the synthesis of vitamin E and of other compounds having benzopyranic structure endowed with properties inhibiting the formation of organic peroxides and therefore having antioxidizing activity, and to the process for their preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.