Triazine derivative and a herbicide comprising the same as an ef

Details Triazine derivative and a herbicide comprising the same as an ef Triazine derivative and a herbicide comprising the same as an ef

1990-10-05

1994-03-01

Ford, John M.

Plant protecting and regulating compositions

Plant growth regulating compositions

Organic active compound containing

504234, 544206, 544207, C07D25118, A01N 4368

Patent

active

052907546

DESCRIPTION:

BRIEF SUMMARY
FIELD OF TECHNOLOGY

The present invention relates to novel triazine derivatives and a herbicide containing the derivatives as an effective ingredient.
1. Background Technology
A variety of herbicides have been hitherto developed and contributed to the productivity and labor-saving in agriculture. However, certain kinds of herbicides have been used over so long years that population of troublesome weeds withstanding them are increasing so that appearance is desired of a herbicids having a broad herbicidal spectrum and effectiveness also against these troublesome weeds. It is also desired to develop a high-activity herbicide in order to overcome the problem of environmental pollution by conventional herbicides. In order to overcome to the problem of the ununiform germination of weeds over a long period of time, furthermore, appearance is also awaited of a herbicide exhibiting excellent persistent effectiveness and having a versatility of treatment to exhibit effectiveness even by treatment over a wide range of period from the pregermination stage to the growing period of weeds.
The inventors have continued investigations to develop a herbicide capable of exhibiting an excellent herbicidal effect against various kinds of annual and perennial weeds without causing phytotoxicity to paddy rice and arrived at a discovery that a herbicide containing a triazine compound as an effective ingredient is effective (official publication of Japanese Patent Toku-sai-hyo 88/02368, official publication of Japanese Patent Kokai 63-146876, official publication of Japanese Patent Kokai 63-51379 and official publication of Japanese Patent Kokai 63-264465). This triazine-based herbicide is highly active against troublesome weeds in paddy rice field at low dosage without phytotoxicity to paddy rice plant. This herbicide also shows excellent herbicidal activity against troublesome weeds by foliage application in upland field without phytotoxicity to Gramineous crops.
Nevertheless, this herbicide shows somewhat limited performance by preemergence treatment to the soil in upland fields.
2. Disclosure Of The Invention
The present invention provides:
(1) a triazine derivative represented by the general formula ##STR5## in the formula, A denotes ##STR6## (in which Y.sup.1 denotes a hydrogen atom or a methyl group and Z denotes an oxygen atom or a sulfur atom), ##STR7## (in which Y.sup.2 and Y.sup.3, which can be of the same kind or different kinds, each denote a methyl group or a methoxy group) or ##STR8## (in which Y.sup.4 denotes a methyl group, trifluoromethyl group, methoxy group or fluorine atom and n denotes an integer of 0 to 2), X.sup.1 denotes a halogen atom and R.sup.1 denotes hydrogen, a methyl group or an ethyl group , and
(2) a herbicide containing, as an effective ingredient, a triazine derivative represented by the general formula ##STR9## in the formula, A denotes ##STR10## in which Y.sup.1 denotes a hydrogen atom or a methyl group and Z denotes an oxygen atom or a sulfur atom), ##STR11## (in which Y.sup.2 and Y.sup.3, which can be of the same kind or different kinds, each denote a methyl group or a methoxy group) or ##STR12## (in which Y.sup.4 denotes a methyl group, trifluoromethyl group, methoxy group or fluorine atom and n denotes an integer of 0 to 2), X.sup.1 denotes a halogen atom and R.sup.1 denotes hydrogen, a methyl group or an ethyl group.
The inventors have continued investigations to search a compound free from phytotoxicity to the crops of the family of Gramineae in upland fields capable of exhibiting a high herbicidal effect against troublesome weeds both in the treatment to soil and in the treatment to foliage with an excellent effect of soil treatment in paddy fields. As a result, a discovery has been reached that those having a specific haloalkyl group are effective leading to completion of the present invention.
The triazine derivative of the present invention is a novel compound and can be effectively utilized as a herbicide. When used as a herbicide for upland fields, the herbicide of the present in

REFERENCES:
patent: 4844731 (1989-07-01), Takematsu et al.
patent: 4932998 (1990-06-01), Takematsu et al.
Chemical Abstracts, vol. 112, 1990, Takematsu et al., p. 772, abstract No. 178993v, Columbus, Ohio, US; of JP-A-01 246 279 (Oct. 1989).

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