Preparation of O, O-dimethyl-O-(2,2-dichlorovinyl)-thionophosphoric acid ester

Preparation of O, O-dimethyl-O-(2,2-dichlorovinyl)-thionophosphoric acid ester

A process for the preparation of O,O-dimethyl-O-(2,2-dichlorovinyl)-thionophosphoric acid ester of the formula (I) comprising reacting O,O-dimethyl-1-hydroxy-2,2,2-trichloroethane-thionophosphonic acid ester of the formula (II) in isopropanol with a 30-50% aqueous solution of an alkali metal hydroxi...

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Bibliographische Detailangaben
Hauptverfasser: COLLN, REIMER, SIRRENBERG, WILHELM
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:A process for the preparation of O,O-dimethyl-O-(2,2-dichlorovinyl)-thionophosphoric acid ester of the formula (I) comprising reacting O,O-dimethyl-1-hydroxy-2,2,2-trichloroethane-thionophosphonic acid ester of the formula (II) in isopropanol with a 30-50% aqueous solution of an alkali metal hydroxide, possibly present in a small molar excess.