Substituted benzotriazole phenols
US10919867B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jun 30, 2016 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Benzotriazole phenols with substituents either ortho to the phenol hydroxyl group and/or para to the phenol hydroxyl group can be prepared from the unsubstituted benzotriazole phenol by coupling reactions. The ortho substituent group can be a simple alkoxy or amino group, or the ortho substituent group can be a linking group, linking the benzotriazole phenol to another benzotriazole phenol group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.