Carboxamides, their preparation and their use as herbicides

US5258357A · 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: Sep 21, 1992
• Grant date: Nov 2, 1993
• Expiry date: Sep 21, 2012

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, a substituted or unsubstituted 5- to 6-membered heterocyclic structure or one of the groups stated for R.sup.1, or PA0 R.sup.1 and R.sup.2 together are a 4- to 7-membered chain which contains, in addition to methylene groups, one of the following groups as ring member: oxygen, sulfur, N-methyl or carbonyl; PA0 R.sup.3 and R.sup.4 are each nitro, cyano, halogen, substituted or unsubstituted amino, alkoxy, alkylthio, a substituted or unsubstituted 5- to 6 -membered heterocyclic structure, 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=O,S); PA1 R.sup.6 is hydrogen, cycloalkyl, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkenyl or phenyl, PA1 a 5- to 6-membered heterocyclic structure, phthalimido, tetrahydrophthalimido, succinimido, maleimido, benzotriazolyl or PA1 a group --N…