Pollen suppressant comprising a fused pyridazine

Details Pollen suppressant comprising a fused pyridazine Pollen suppressant comprising a fused pyridazine

1983-09-14

1986-08-05

Hollrah, Glennon H.

Chemistry: fertilizers

Processes and products

Forms or conditioning

544235, A01N 4358, C07D23728

Patent

active

046041346

ABSTRACT:
Pollen suppressants of the formula ##STR1## wherein Z represents a divalent organic radical of the formula --CH.dbd.CH--CH.dbd.CH--, --CH.dbd.CH--CH.dbd.N--, --CH.dbd.CH--N.dbd.CH--, --CH.dbd.CH--NH--, --CH.dbd.CH--O--, or --CH.dbd.CH--S-- or said radical in which an H of Z is replaced with a halogen atom with the proviso that no more than three H or Z are replaced by fluorine; a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkanoyl, cyano, nitro, hydroxy, or trihalomethyl group; or a group of the formula --NR.sup.1 R.sup.2 wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; Y is Y.sup.1 R.sup.3 or NR.sup.4 R.sup.5 wherein Y.sup.1 is oxygen or sulfur; R.sup.3 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxyalkyl, cyclohexylmethyl, halogenated C.sub.1 -C.sub.4 alkyl, phenyl, or benzyl; and R.sup.4 and R.sup.5 are independently selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 alkyl, or C.sub.1 -C.sub.4 alkyl substituted with carboxyl or C.sub.1 -C.sub.4 alkoxycarbonyl; and R represents 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, are disclosed along with methods of producing these compounds and of using them to produce hybrid seeds in self-fertilizing plants.

REFERENCES:
patent: 4009020 (1977-02-01), Starke et al.
patent: 4115101 (1978-09-01), Carlson
patent: 4345934 (1982-10-01), Fujimoto
patent: 4379929 (1983-04-01), Conrad et al.
Ames, D. E., et al., Synthesis of 1-aryl-4-oxo-1H,4H-cinnoline-3-carboxylic acid esters, Synthesis 1: 52-3 (1983).
Sandison and Tennant, A New Heterocylisation Reaction Leading to Cinnolin-4(1H)-one Derivatives, J.C.S. Chem. Comm., pp. 752-753, (1974).
Published translation of Zhurnai Obshchei Khimii, vol. 37, No. 11, pp. 2487-2494, Nov. 1967, Prudchenko et al., "Some Reactions of Pentafluorobenzoylacetic Ester".

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