Pyridine derivatives
US4556661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 1982 |
| Grant date | Dec 3, 1985 |
| Priority date | — |
| Expiry date | Aug 27, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D241/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Novel pyridine and pyrazine derivatives of the formula ##STR1## wherein R.sup.4 is 3-pyridyl, 3-pyridyl-1-oxide, 2-pyrazinyl, 2-pyrazinyl-1-oxide, 2-pyrazinyl-4-oxide or 2-pyrazinyl-1,4-dioxide, and R, R.sup.1, R.sup.2 and R.sup.3 are as hereinafter set forth, processes for their preparation, fungicidal compositions containing said compounds, and methods for the use of such compounds or compositions for combatting fungi in agriculture and in horticulture are disclosed. Novel starting materials and fungicidal active substances of the formula ##STR2## wherein R.sup.4' is 3-pyridyl or 2-pyrazinyl, and R and R.sup.1" as hereinafter set forth, which are used for the preparation of the compounds of formula I, and their N-oxides, as well as fungicidal compositions containing these compounds as the active substance, are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.