Process for the preparation of substituted pyridines
US4897484A · kind A · utility
1Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1987 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Dec 9, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D213/61
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is described for the preparation of compounds of the formula ##STR1## in which R and X are as defined in claim 1. The compounds of the formula (1) are valuable intermediates in the synthesis of triarylmethane dyes and triarylmethanelactones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.