2-(thi)oxo-1,3,2-oxazaphospholanes as synergizing agents for pesticides

US4609646A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Feb 17, 1984
• Grant date: Sep 2, 1986
• Expiry date: Feb 17, 2004

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 syngerizing 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-alky-N-aryl-amino, phenoxy or phenylthio radical, PA0 R.sup.1 represents hydrogen, optionally subsituted 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.