Pollen suppressant comprising a pyridazolylamine

Details Pollen suppressant comprising a pyridazolylamine Pollen suppressant comprising a pyridazolylamine

1983-09-14

1985-12-31

Berch, Mark L.

Chemistry: fertilizers

Processes and products

Forms or conditioning

71 93, 544182, 544183, 544184, 544218, 544219, 544235, 544236, 544237, 544238, 544239, A01N 4358, C07D23734, C07D40304, C07D40112

Patent

active

045618810

ABSTRACT:
A pollen suppressant of the formula ##STR1## wherein R.sup.1 and R.sup.4 independently represent C.sub.1 -C.sub.4 alkyl, phenyl, naphthyl, or phenyl or naphthyl substituted with one to three substituents selected from the group consisting of halogen, trihalomethyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkyl, and cyano; R.sup.2 is ##STR2## where R.sup.5 is a C.sub.1 -C.sub.12 alkyl group, optionally substituted with one or more halogen atoms, or an aryl group selected from the group consisting of 6-membered rings containing 0-3 nitrogens and fused bicyclic 10-membered rings containing 6 atoms in each ring and 0-3 nitrogens per ring with the remaining atoms in the ring or rings of said aryl group being carbon atoms, said aryl group being optionally substituted with a C.sub.1 -C.sub.4 alkyl group or an electron-withdrawing group, R.sup.3 is hydrogen, a halogen a C.sub.1 -C.sub.4 alkyl group, a carboxy group or an agronomically acceptable alkali metal salt thereof, or a group of the formula --COOR.sup.6 or --CONR.sup.6 R.sup.7 where R.sup.6 is a C.sub.1 -C.sub.4 alkyl group and R.sup.7 is R.sup.6 or hydrogen, is disclosed along with methods of producing these compounds and of using them to produce hybrid seeds in self-fertilizing plants.

REFERENCES:
patent: 3967952 (1976-07-01), Abdulla et al.

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