Aryl esters of phosphonous halides and a process for the preparation thereof

US5283350A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Manfred Bohshar · Kelkheim, DE
• Hans-Jerg Kleiner · Kronberg, DE

Key dates

• Filing date: Dec 30, 1992
• Grant date: Feb 1, 1994
• Expiry date: Dec 30, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/4891
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Aryl esters of phosphonous halides of the formula I ##STR1## in which R' is a phenyl or benzyl radical which bears 1 to 3 substituents, .alpha.-methylbenzyl, .alpha., .alpha.-dimethylbenzyl, naphthyl or a naphthyl radical bearing 1 to 5 substituents, where the substituents are identical or different and are a non-aromatic hydrocarbon radical, an alkoxy radical or alkylthio radical each having 1 to 8 carbon atoms, aryl or aryloxy each having 6 to 10 carbon atoms or halogen having an atomic number from 9 to 35, PA1 R.sup.2 is a non-aromatic hydrocarbon radical having 1 to 18 carbon atoms, aryl, arylmethyl, arylethyl or arylisopropyl, where each aryl contains 6 to 10 carbon atoms, PA1 R.sup.3 is hydrogen or one of the groups mentioned under R.sup.2, and PA1 X is chlorine or bromine. The invention further relates to a process for the preparation of aryl esters of phosphonous halides of the formula I.