Carboxamides and their use as herbicides

US5201934A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Muenster · Neulußheim, DE
• Gerd Steiner · Tauberbischofsheim, DE
• Wolfgang Freund · Neustadt, DE
• Bruno Wuerzer · Otterstadt, DE
• Karl-Otto Westphalen · Speyer, DE

Key dates

• Filing date: Oct 3, 1990
• Grant date: Apr 13, 1993
• Expiry date: Oct 3, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Carboxamides of the formulae Ia to Ic ##STR1## where X is oxygen or sulfur; PA0 R.sup.1 is hydrogen or substituted or unsubstituted cycloalkyl or alkyl; PA0 R.sup.2 is hydroxy, alkoxy, cyanoalkyl, substituted or unsubstituted alkenyl, alkynyl, phenyl or naphthyl, or one of the groups stated for R.sup.1 ; PA0 R.sup.3 and R.sup.4 are nitro, cyano, halogen, substituted or unsubstituted amino, alkoxy, alkylthio, substituted or unsubstituted alkenyl, alkynyl, phenyl, phenoxy or phenylthio, or one of the groups stated for R.sup.1 ; PA0 R.sup.5 is formyl, 4,5-dihydrooxazol-2-yl or COYR.sup.6 (Y.dbd.O,S); PA0 R.sup.6 is hydrogen, cycloalkyl, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkenyl or phenyl, PA0 phthalimido, tetrahydrophthalimido, succinimido, maleimido, benzotriazolyl or PA0 a group --N.dbd.CR.sup.7 R.sup.8, where PA0 R.sup.7 and R.sup.8 are hydrogen or alkyl, and R.sup.8 may also be cycloalkyl, phenyl, or R.sup.7 and R.sup.8 together form a 4- to 7-membered alkylene chain; PA0 and if R.sup.5 is carboxyl, methoxycarbonyl or ethoxycarbonyl and R.sup.2 is hydrogen, R.sup.3 is not hydrogen and R.sup.4 is not hydrogen or methyl, and if R.sup.5 is carboxyl, methoxyca…