Combating pests with N-phosphonylcarbonyl-carbamates

US4357329A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Heywang · Bensberg, DE
• Engelbert Kuhle · Wittlich, DE
• Ingeborg Hammann · Cologne, DE
• Bernhard Homeyer · Leverkusen, DE

Key dates

• Filing date: Jun 22, 1981
• Grant date: Nov 2, 1982
• Expiry date: Jun 22, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/6518
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

N-Phosphonylcarbonyl-N-methylcarbamic acid esters of the formula ##STR1## in which R.sup.1 and R.sup.2 can be identical or different and each represents alkyl, alkenyl or alkynyl, it being possible for any of these radicals to be substituted by halogen, and PA0 R.sup.3 represents alkyl, phenyl, naphthyl, benzodioxolanyl, dihydrobenzofuranyl or indanyl, it being possible for any of these radicals to carry one or more substituents selected from alkyl, alkenyl, alkynyl, alkoxy, alkenoxy, alkynoxy, alkylthio, alkenylthio, alkynylthio, dialkylamino, halogenoalkyl, halogen, nitro, cyano, cycloalkyl, formamidino, dioxanyl and dioxolanyl, or PA0 R.sup.3 represents a radical of the formula ##STR2## in which R.sup.4 and R.sup.5 can be identical or different and each represents alkyl, alkoxy, alkylthio, alkylthioalkyk, cyano, alkoxycarbonyl, dialkylcarbamoyl, dialkoxyphosphoryl or triazolyl, or PA0 R.sup.4 and R.sup.5, together with the C atom to which they are bonded, form a dithiolane, dithiane, oxythiolane or oxathiane ring which is optionally substituted by methyl or phenyl, which are pesticidally active.