2-(formylphenyl) benzotriazole intermediates
US4709041A · kind A · utility
4Cited by
7References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 25, 1986 |
| Grant date | Nov 24, 1987 |
| Priority date | — |
| Expiry date | Aug 25, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/55
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## wherein R is hydrogen or a hydroxy-protecting group are disclosed. The compounds are versatile intermediates which can be derivatized by reaction of the formyl group to provide a wide variety of ultraviolet-absorbing substituted 2-(2-hydroxyphenyl)-2H-benzotriazoles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.