US 5,629,264 AGranted

2-aryl-5,6-dihydropyrimidinones and herbicidal use thereof

AssigneeRohm and Haas Company

InventorsColin M. Tice, Lois M. Bryman, Renee C. Roemmele

Life of this patent

Estimating the term…

Loading patent…

Abstract

A class of 2-aryl-5,6-dihydropyrimidinones and compositions thereof which are useful in the control of weeds is of the general formula ##STR1## wherein Ar is a substituted or unsubstituted aryl or heteroaryl; R.sup.3 is an optionally substituted alkyl, alkenyl or alkynyl; R.sup.5a and R.sup.5b are each independently a hydrogen atom, halo, cyano or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy or alkylthio; R.sup.6a and R.sup.6b are each independently a hydrogen atom, halo, cyano, an optionally substituted alkyl, alkenyl, alkynyl, alkoxy or alkylthioalkyl, cycloalkyl, optionally substituted aryl, aryloxy, heterocyclyl or aralkyl, alkylamino, dialkylamino or dialkylaminocarbonyl; R.sup.5a and R.sup.6a taken together with the carbon atoms to which they are attached may form a fused 4-7 member ring containing 2-5 methylenes; and X is an oxygen or a sulfur atom.

Claims22

Dependent claims

A compound of the formula ##STR12## wherein Ar is a substituted or unsubstituted aryl or heteroaryl;

R.sup.3 is a haloalkyl, polyhaloalkyl, alkenyl, haloalkenyl, polyhaloalkenyl, alkynyl, haloalkynyl, polyhaloalkynyl, alkenynyl, alkoxyalkyl, haloalkoxyalkyl, oxoalkyl, trimethylsilylalkynyl or cyanoalkyl;
R.sup.5a and R.sup.5b are each independently a hydrogen atom, halo, alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkoxycarbonyl, alkoxycarbonylalkyl, haloalkyl, haloalkenyl, haloalkynyl, haloalkoxy, polyhaloalkyl, polyhaloalkenyl, polyhaloalkynyl, polyhaloalkoxy, trimethylsilylalkynyl or cyano;
R.sup.6a and R.sup.6b are each independently a hydrogen atom, halo, alkyl, alkenyl, alkynyl, alkoxy, alkylthio, haloalkylthio, alkoxyalkyl, alkoxycarbonyl, alkoxycarbonylalkyl, haloalkyl, haloalkoxy, haloalkenyl, haloalkynyl, polyhaloalkyl, polyhaloalkoxy, polyhaloalkylthio, polyhaloalkenyl, polyhaloalkynyl, cycloalkyl, aryl, aryloxy, heterocyclyl, aralkyl, alkylamino, dialkylamino, dialkylaminocarbonyl, or cyano;
R.sup.5a and R.sup.6a taken together with the carbon atoms to which they are attached may form a fused 4-7 member ring containing 2-5 methylenes;
and
X is an oxygen or a sulfur atom.

3 more elements

A herbicidal composition comprising a compound of the formula ##STR13## wherein Ar is a substituted or unsubstituted aryl or heteroaryl;

R.sup.3 is an alkyl, haloalkyl, polyhaloalkyl, alkenyl, haloalkenyl, polyhaloalkenyl, alkynyl, haloalkynyl, polyhaloalkynyl, alkenynyl, alkoxyalkyl, dialkoxyalkyl, haloalkoxyalkyl, oxoalkyl, trimethylsilylalkynyl or cyanoalkyl;
R.sup.5a and R.sup.5b are each independently a hydrogen atom, halo, alkyl, alkenyl, alkynyl, alkoxy, alkylthio, alkoxycarbonyl, alkoxycarbonylalkyl, haloalkyl, haloalkenyl, haloalkynyl, haloalkoxy, polyhaloalkyl, polyhaloalkenyl, polyhaloalkynyl, polyhaloalkoxy, trimethylsilylalkynyl or cyano;
R.sup.6a and R.sup.6b are each independently a hydrogen atom, halo, alkyl, alkenyl, alkynyl, alkoxy, alkylthio, haloalkylthio, alkoxyalkyl, alkoxycarbonyl, alkoxycarbonylalkyl, haloalkyl, haloalkoxy, haloalkenyl, haloalkynyl, polyhaloalkyl, polyhaloalkoxy, polyhaloalkylthio, polyhaloalkenyl, polyhaloalkynyl, cycloalkyl, aryl, aryloxy, heterocyclyl, aralkyl, alkylamino, dialkylamino, dialkylaminocarbonyl, or cyano;
R.sup.5a and R.sup.6a taken together with the carbon atoms to which they are attached may form a fused 4-7 member ring containing 2-5 methylenes;
X is an oxygen or a sulfur atom;
and
an agronomically acceptable carrier.

4 more elements

Dependencies are inferred from the claim text.