Cyano-trichloro-pyrido-pyrimidine and a process for preparing cyano-trichloro-pyrido-pyrimidine
US4871851A · kind A · utility
3Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Dec 14, 1987 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Dec 14, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B62/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Cyano-trichloro-pyrido-pyrimidine of the formula ##STR1## is a new reactive component for dyestuffs containing amino groups. It is obtained by heating the compound of the formula ##STR2## in the presence of Friedel-Crafts catalysts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.