Rohm and Haas Company

Roy Y Yih

Colin Swithenbank

Horst O Bayer

Wayne O Johnson

Harlow L Warner

Pyung K Yu

Gerald E Kollman

Ann H Beaulieu

Compounds having the formula ##STR1## wherein Q is substituted phenyl or substituted pyridyl; Y is nitro, cyano, or halogen; R is a group of the formula --(CHR.sup.1).sub.m --A--(CH.sup.2)--.sub.n --R.sup.3 wherein R.sup.1 and R.sup.2, independently of each other and in each (CHR.sup.1) and (CHR.sup.2) group, are hydrogen, unsubstituted or substituted alkyl, alkoxy, or alkylthio; A is --N(R.sup.1)--, --N(O)--, --O--, --S--, --S(O)--, --S(O).sub.2 --, --C(O)--, --C(O)B--, or --N(H)S(O).sub.2 --; B is alkylene, --O--, --S--, or --N(R.sup.4)--; R.sup.3 is cyano, halogen, or C(O)Z; R.sup.4 is hydrogen or unsubstituted or substituted alkyl; Z is hydrogen, unsubstituted or substituted alkyl, --N(R.sup.4).sub.2, --OR.sup.5, --SR.sup.5, or --N(R.sup.4)SO.sub.2 R.sup.6 ; R.sup.5 is hydrogen, unsubstituted or substituted alkyl, or an agronomically-acceptable cation; R.sup.6 is alkyl, unsubstituted or substituted phenyl, or hydroxy or its agronomically-acceptable salts; m is an integer from 2 to 10; and n is an integer from 1 to 3, are herbicidally active.

Herbicidally active amino diphenyl ethers

Sulfonium and sulfoxonium salts of the formula ##STR1## wherein X and Y are independently a hydrogen atom, a halogen atom, a trihalomethyl group, a nitro group, an alkyl group or a cyano group; Z is a halogen atom, a trihalomethyl group, an alkyl group, cyano group or --S(O).sub.m R, wherein m is 0, 1 or 2 and R is an alkyl group; A is a halogen atom, a nitro group or a cyano group; B is a negatively charged organic substituent; n is 0 or 1, each R.sup.1 is independently an alkyl group, an aryl group or --N(R.sup.2).sub.2 wherein R.sup.2 is an alkyl group or an aryl group; S is sulfur; and N is nitrogen, and compositions containing these salts exhibit herbicidal activity.

Sulfonium salts of diphenyl ethers

Compounds of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group, an alkyl group, or a cyano group,

Herbicidal 4-trifluoromethyl-4-nitrodiphenyl ethers

Herbicidal 4-trifluoromethyl-4'-nitrodiphenyl ethers

Compounds of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group or an alkyl group.

Diphenyl ethers of the formula ##STR1## wherein R.sup.1 is hydrogen or halogen,

Herbicidal diphenyl ethers, sulfides, sulfoxides and sulfones

Compounds of the formula ##STR1## wherein X is a cyano group,

Herbicidal 4-trifluoromethyl 4-nitrodiphenyl ethers

Compounds of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group, or an alkyl group,

Compounds of the formula ##STR1## wherein X is a hydrogen atom, a halogen atom, a trihalomethyl group, an alkyl group, or a cyano group, and

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Roy Y Yih