Substituted phenoxybenzoic acids compositions of the same and herbicidal use thereof

Abstract

2-nitro-5-(substituted-phenoxy)benzoic acids and esters, salts, amides, and acyl halides thereof comprise a class of compounds that are highly effective herbicides.

What is claimed is: .[. 
     
       1.  Herbicidal compounds having the formula ##STR4## wherein X is a member selected from the group consisting of halogen, nitro, trifluoromethyl, cyano, COOH, ##STR5## (alkyl of 1 to 4 carbon atoms), hydroxy, alkoxy of 1 to 4 carbon atoms, alkyl of 1 to 4 carbon atoms, ##STR6## SH, SR 1 , SOR 1 , SO 2  R 1 , SO 2  NH 2  and combinations thereof, R 1  and R 2  are selected from the group consisting of alkyl of 1 to 4 carbon atoms, R is hydroxy, and n is an integer of 1 to 5..]. .[. 
     
     
       2.  The method for controlling plant growth that comprises applying an herbicidal amount of a compound defined in claim 1..]. .[.3. An herbicidal composition comprising a carrier for an herbicide and an herbicidal amount 
     
     
        of a compound defined in claim 1..]. .Iadd.4.  Herbicidal compounds having the formula: .Iaddend. ##STR7## .Iadd.wherein (X) n  is a combination of the members selected from the group consisting of halogen, trifluoromethyl, COOH, .Iaddend. ##STR8## .Iadd.(alkyl of 1 to 4 carbon atoms), hydroxy, alkoxy of 1 to 4 carbon atoms, .Iaddend. ##STR9## .Iadd.SH, SR 1 , SOR 1 , SO 2  R 1 , SO 2  NH 2 , R 1  and R 2  are selected from the group consisting of alkyl of 1 to 4 carbon atoms, R is hydroxy, and n is an integer of 2 to 5. .Iaddend. 
     
     
        .Iadd.5.  The method for controlling plant growth that comprises applying an herbicidal amount of a compound defined in claim 4. .Iaddend. .Iadd.6. An herbicidal composition comprising a carrier for an herbicide and an herbicidal amount of a compound defined in claim 4. .Iaddend.