Pyrazole sulfonates

Details Pyrazole sulfonates Pyrazole sulfonates

1977-09-30

1979-03-27

Trousof, Natalie

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

71 92, 548374, 548367, 260299, 260307A, 542427, C07D23120

Patent

active

041467264

ABSTRACT:
Herbicidal compositions containing as an 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 alkoxy 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:
patent: 2694703 (1954-11-01), Graham
patent: 3976658 (1976-08-01), Avar et al.
patent: 4002641 (1977-01-01), Moller et al.
patent: 4036631 (1977-07-01), Konotsune et al.
Sarenko et al., Chem. Abst. 1972, vol. 77, No. 88384b & No. 88385c.
Wamhoff et al., Chem. Abst. 1971, vol. 75, No. 20282v.
Sarenko et al., Khim. Geterotsikl. Soedin, 1972 (6), pp. 799-804 & 805-808.

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