Pyridine derivatives

Details Pyridine derivatives Pyridine derivatives

1982-08-27

1985-12-03

Milestone, Norma S.

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Having -c-, wherein x is chalcogen, bonded directly to...

546344, 546346, 546315, 544336, C07D21330, C07D21326, C07D21389, A01N 4340

Patent

active

045566615

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.

REFERENCES:
patent: 3188315 (1965-06-01), Villani
patent: 3396224 (1968-08-01), Van Heyningen
patent: 3544682 (1970-12-01), Taylor et al.
patent: 4116665 (1978-09-01), Krumkalns
patent: 4431812 (1984-02-01), Buschmann et al.

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