Process for the preparation of phosphoric acid derivatives and intermediate products

US4769458A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hermann Arold · Wuppertal, DE
• Fritz Maurer · Wuppertal, DE

Key dates

• Filing date: Oct 31, 1986
• Grant date: Sep 6, 1988
• Expiry date: Oct 31, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/6512
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The process which comprises ##STR1## in which R represents hydrogen, alkoxy, alkylamino or dialkylamino or represents optionally substituted radicals from the series comprising alkyl, cycloalkyl and aryl, PA0 R.sup.1 represents optionally substituted radicals from the series comprising alkyl, alkoxy, alkylthio, mono- or dialkylamino and phenyl, PA0 R.sup.2 represents optionally substituted alkyl, PA0 R.sup.3 represents alkyl, alkoxy or aryl, PA0 X represents oxygen or sulphur, and PA0 Y represents halogen or a grouping --OCOR.sup.3. The intermediates do not have to be isolated. Some are new compounds.