2-Thi-1,3,2-oxazaphospholanes

US4387060A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hellmut Hoffmann
• Bernd-Wieland Kruger · Wittlich, DE
• Wolfgang Behrenz · Overath, DE

Key dates

• Filing date: Nov 3, 1980
• Grant date: Jun 7, 1983
• Expiry date: Nov 3, 2000

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N57/36
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a synergistic pesticidal composition comprising (1) a pesticidally active compound and (2) a synergizing agent in amount sufficient to synergize the pesticidal activity of the pesticidally active compound, the improvement which comprises employing as the synergizing agent a 2-(thi)oxo-1,3,2-oxazaphospholane of the formula ##STR1## in which X represents oxygen or sulphur, PA0 R represents an optionally substituted alkyl, alkenyl, alkynyl, phenyl, alkoxy, alkenoxy, alkynoxy, alkylthio, aralkoxy, amino, mono- or di-alkylamino, heterocyclic amino, N-alkyl-N-aryl-amino, phenoxy or phenylthio radical, PA0 R.sup.1 represents hydrogen, optionally substituted alkyl, aralkyl, alkenyl, alkynyl or dialkylaminoalkyl, PA0 R.sup.2 represents hydrogen, alkylthioalkyl, or optionally substituted alkyl or aralkyl, or R.sup.1 and R.sup.2 together represent alkylene, PA0 R.sup.3 represents hydrogen or alkyl and PA0 R.sup.4 represents hydrogen, alkyl, or phenyl.