Herbicidal diphenyl ethers, their preparation and their use as herbicides

US4523034A · kind A · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Mar 10, 1982
• Grant date: Jun 11, 1985
• Expiry date: Mar 10, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N41/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Diphenyl ethers of the formula ##STR1## where Z.sub.1 and Z.sub.2 are each hydrogen, halogen, nitro, cyano, carboxyl, alkyl, haloalkyl or alkoxy, Z.sub.3 is halogen, nitro, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylmercapto, haloalkylmercapto, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or haloalkylsulfonyl, Y is halogen, cyano or nitro, R.sub.1 is hydrogen, alkyl, cycloalkyl, alkoxy, haloalkyl or alkoxyalkyl, R.sub.2 is hydrogen, alkyl, acyl or an alkali metal atom and R.sub.3 is hydrogen, alkyl or an alkali metal atom, and herbicides containing these compounds.