Pyrimidine or triazine derivatives and herbicides

Details Pyrimidine or triazine derivatives and herbicides Pyrimidine or triazine derivatives and herbicides

1993-12-08

1996-06-18

Gupta, Yogendra N.

Plant protecting and regulating compositions

Plant growth regulating compositions

Organic active compound containing

504192, 504239, 504243, 544300, 544301, 544302, 544310, 544311, 544312, 544315, 544316, 544317, 544318, 544319, 544320, 544324, 544328, 544331, 544332, 544333, A01N 4354, C07D40112, C07D23932

Patent

active

055277632

DESCRIPTION:

BRIEF SUMMARY
TECHNICAL FIELD

This application is a 371 of PCT/JP 92/01690, filed on Dec. 14, 1992.
The present invention relates to herbicides which contain pyrimidine or triazine derivatives and their salts as active ingredients and which can be applied to paddy fields, upland fields and non-agricultural fields.


BACKGROUND ART

It has been already disclosed in Japanese Unexamined Patent Publication No. 121973/1990 that the following compounds have herbicidal activities: ##STR2##
However, the herbicidal effects off the compounds disclosed in this publication are not necessarily adequate. The present inventors have conducted extensive researches on pyrimidine or triazine compounds with an aim to develop further improved compounds and as a result, have found that pyrimidine or triazine derivatives of the present invention having a heterocyclic ring introduced exhibit excellent herbicidal effects not only against annual weeds but also against perennial weeds, and they are highly safe to crop plants. The present invention has been accomplished on the basis of this discovery.


DISCLOSURE OF THE INVENTION

The present invention provides a pyrimidine or triazine derivative of the formula (I): ##STR3## wherein A is a heterocyclic ring of the formula: ##STR4## R is a hydrogen atom, a hydroxyl group, an imidazolyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.3 -C.sub.6 alkenyloxy group, a C.sub.3 -C.sub.6 alkynyloxy group, a C.sub.1 -C.sub.6 alkylthio group, a C.sub.3 -C.sub.7 cycloalkoxy group, a benzyloxy group, a substituted benzyloxy group, a benzylthio group, a substituted benzylthio group, a C.sub.3 -C.sub.6 cycloalkylthio group, a C.sub.1 -C.sub.4 alkoxy C.sub.1 -C.sub.4 alkoxy group, a furyloxy group, a tetrahydrofuryloxy group, a phenoxy group, a substituted phenoxy group, a C.sub.2 -C.sub.4 aralkyloxy group, a C.sub.1 -C.sub.4 alkylthio C.sub.1 -C.sub.4 alkoxy group, a cyano C.sub.1 -C.sub.4 alkoxy group, a C.sub.1 -C.sub.4 alkoxycarbonyl C.sub.1 -C.sub.4 alkoxy group, an N,N-di C.sub.1 -C.sub.3 alkylamino C.sub.1 -C.sub.3 alkoxy group, an N,N-di C.sub.1 -C.sub.3 alkylamino C.sub.1 -C.sub.3 alkylthio group, a C.sub.3 -C.sub.9 linear or cyclic alkylidene aminoxy group, a C.sub.1 -C.sub.4 alkylsulfonylamino group, a phenylsulfonylamino group, a substituted phenylsulfonylamino group, a trimethylsilylethoxy group, a group of the formula --NR.sup.4 R.sup.5 (wherein each of R.sup.4 and R.sup.5 which may be the same or different, is a hydrogen atom, a hydroxyl group, a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.3 -C.sub.6 alkenyl group, a phenyl group, a substituted phenyl group, a C.sub.3 -C.sub.6 cycloalkyl group, a C.sub.1 -C.sub.3 alkoxy C.sub.1 -C.sub.3 alkyl group, a C.sub.1 -C.sub.3 acyl group, a C.sub.3 -C.sub.6 alkynyl group, a C.sub.3 -C.sub.5 alkenyloxy group, a C.sub.3 -C.sub.5 alkynyloxy group, a benzyloxy group, a substituted benzyloxy group, a C.sub.1 -C.sub.4 alkoxycarbonyl C.sub.1 -C.sub.3 alkyl group, a C.sub.1 -C.sub.4 alkoxycarbonyl C.sub.1 -C.sub.3 alkoxy group, an amino group, a dimethylamino group, a cyano group, a C.sub.1 -C.sub.4 alkylsulfonyl group, a phenylsulfonyl group, a substituted phenylsulfonyl group, an acetylamino group or an anilino group, or R.sup.4 and R.sup.5 may together form a ring which may contain a hetero atom), each of R.sup.1 and R.sup.2 which may be the same or different, is a hydrogen atom (provided that a case where R.sup.1 and R.sup.2 are the same, is excluded), a halogen atom, a C.sub.1 -C.sub.6 alkyl group, a C.sub.1 -C.sub.6 haloalkyl group, a C.sub.1 -C.sub.6 alkoxy group, a C.sub.1 -C.sub.6 haloalkoxy group, a C.sub.1 -C.sub.6 alkylthio group, a phenoxy group, a substituted phenoxy group, a C.sub.1 -C.sub.3 alkoxy C.sub.1 -C.sub.3 alkyl group, a C.sub.3 -C.sub.6 cycloalkyl group, a C.sub.2 -C.sub.5 alkenyl group, a C.sub.3 -C.sub.5 alkenyloxy group, a C.sub.2 -C.sub.4 alkynyl group, a C.sub.3 -C.sub.5 alkynyloxy group, a C.sub.1 -C.sub.3 alkylthio C.sub.1 -C.sub.3 alkyl group, a group of the formula --NR.sup.6 R.sup.7 (wherein each of R.

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patent: 5015285 (1991-05-01), Rheinheimer et al.
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CA 88:104310, 1977.
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