Herbicidal compositions and pyrazole derivatives

Details Herbicidal compositions and pyrazole derivatives Herbicidal compositions and pyrazole derivatives

1977-10-25

1981-04-14

Mills, Catherine L.

Chemistry: fertilizers

Processes and products

Forms or conditioning

A01N 4356

Patent

active

042617294

ABSTRACT:
Herbicidal compositions containing as on active ingredient one or more of the pyrazole compounds having the formula ##STR1## (wherein R.sub.1 represents hydrogen atom or a lower alkyl group, R.sub.2 represents a lower alkyl group or a lower alkenyl group, X represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkyl group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group or an aliphatic acyl group and n is an integer of 1 to 4 and when n is 2, 3 or 4, X's may be the same or different), salts thereof and organic acid esters thereof, as well as new pyrazole compounds having herbicidal activities and the formula ##STR2## (wherein R.sub.1 represents hydrogen atom or a lower alkyl group, R.sub.2 represents a lower alkyl group or a lower alkenyl group Z represents a halogen atom, nitro group, a lower alkyl group, a halogenated lower alkyl group, a lower alkoxy group, a lower alkanesulfonyl group, cyano group, a lower alkylthio group, an aliphatic acyl group or benzoyl group, n is an integer of 1 to 4, when n is 2, 3 or 4, Z's may be the same or different and Y represents oxygen atom or sulfur atom; provided that those wherein R.sub.1 and R.sub.2 are methyl groups, Z is chlorine atom at 2-position, n is 1 and Y is oxygen atom and wherein R.sub.1 and R.sub.2 are methyl groups, Z is nitro group at 4-position, n is 1 and Y is oxygen atom are excluded. These pyrazole compounds are prepared in a conventional manner.

REFERENCES:
Sarenko et al., Chem. Hetero Compounds, vol. 8, pp. 722-727, (1972).

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