3,5-dimethyl-4-methoxypyridine derivatives
US5066810A · kind A · utility
5Cited by
9References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1989 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Nov 7, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/68
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of compounds of formula I ##STR1## in which X is the radical OH or Cl, by the catalytic hydrogenation of 3,5-dimethyl-4-methoxy-2-cyanopyridine, subsequent reaction of the resulting 3,5-dimethyl-4-methoxy-2-aminomethylpyridine to give 3,5-dimethyl-4-methoxy-2-hydroxymethylpyridine and, if desired, chlorination to give 3,5-dimethyl-4-methoxy-2-chloromethylpyridine, and the novel intermediate 3,5-dimethyl-4-methoxy-2-aminomethylpyridine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.