Process for the preparation of 1,3,5-triazines
US5545836A · kind A · utility
20Cited by
7References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1994 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Sep 27, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/24
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a simple, one-step process for the preparation of triazines of formula ##STR1## which comprises reacting the benzonitrile of formula (I) ##STR2## with the benzonitrile of formula (II) ##STR3## in the temperature range from 180.degree. to 260.degree. C., in which formulae above R.sub.1 and R.sub.2 are as defined in claim 1. The compounds prepared by this process find utility as UV absorbers or as starting materials for the preparation of UV absorbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.