2-Phenyl-alk-1-enyl-cyclopropane-carboxylic acid intermediates

US4485252A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rainer Fuchs · Halver, DE
• Ingeborg Hammann · Cologne, DE
• Bernhard Homeyer · Leverkusen, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: May 5, 1982
• Grant date: Nov 27, 1984
• Expiry date: May 5, 2002

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N53/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

2-Phenyl-alk-1-enyl-cyclopropane-carboxylic acid esters of the formula ##STR1## in which R each independently is hydrogen, halogen, cyano, nitro and, in each case optionally halogen-substituted, alkyl, alkoxy, alkylenedioxy or alkylthio, PA1 R.sup.1 is optionally halogen-substituted alkyk, and PA1 R.sup.2 is a radical customary in the alcohol part of pyrethroids which exhibit insecticidal and acaricidal activity. They are made from the corresponding alkyl esters which are new and made by novel processes.