Substituted diphenyl ethers, herbicides containing these compounds and their use as herbicides

US4744812A · kind A · utility

Assignee

• BASF SE

Inventors

• Adolf Parg · Bad Dürkheim, DE
• Bruno Wuerzer · Otterstadt, DE
• Gerhard Hamprecht · Weinheim, DE

Key dates

• Filing date: Mar 4, 1985
• Grant date: May 17, 1988
• Expiry date: Mar 4, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/1653
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted diphenyl ethers of the formula ##STR1## where Z.sub.1, Z.sub.2 and Z.sub.3 are hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or haloalkylsulfonyl, Z.sub.4 is hydrogen, cyano, alkyl, alkoxy, acetoxy or alkylmercapto, Y is hydrogen, halogen, cyano or nitro, X is oxygen, sulfur, sulfinyl or sulfonyl, and A is hydrogen, unsubstituted or substituted alkyl ##STR2## and can also be sulfonyl ##STR3## when X is oxygen, and, when Z.sub.4 is alkoxy or alkylmercapto, can also be a methylene chain --(CH.sub.2).sub.m -- by which the radicals Z.sub.4 --CH--X-- are bonded to form a ring, R.sub.1 is hydrogen, methyl, ethyl or n-propyl, R.sub.2 is cyano, methoxy, ethoxy or ##STR4## where B is OH, ONa, O--alkyl, unsubstituted or substituted phenoxy, --NH.sub.2, --NH--alkyl or --N(alkyl).sub.2, n is 1, 2 or 3, R.sub.3 and R.sub.4 are hydrogen, halogen, methyl, nitro, cyano, methoxy, carboxyl, trifluoromethyl or an O-propionic acid methyl ester group, R.sub.5 is methyl, ethyl, propyl, chloromethyl, dichloromethyl, trichloromethyl, methoxymethyl, phenyl, nitro-substituted phen…