PREPARATION OF O,O-DIALKYL-O-(2,2-DICHLOROVINYL)-THIONOPHOSPHORIC ACID ESTERS

A process for the production of an 0,0-dialkyl-0-(2,2-dichlorovinyl)-thionophosphoric acid ester of the formula IN WHICH R is methyl or ethyl, IN WHICH AN 0,0-DIALKYLTHIOPHOSPHITE OF THE FORMULA IS REACTED WITH CHLORAL IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN AMINE, WITH SUBSEQUENT REACTION WITH...

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Bibliographische Detailangaben
Hauptverfasser:	SIRRENBERG, WILHELM, COELLN, REIMER
Format:	Patent
Sprache:	eng
Schlagworte:	ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for the production of an 0,0-dialkyl-0-(2,2-dichlorovinyl)-thionophosphoric acid ester of the formula IN WHICH R is methyl or ethyl, IN WHICH AN 0,0-DIALKYLTHIOPHOSPHITE OF THE FORMULA IS REACTED WITH CHLORAL IN THE PRESENCE OF A CATALYTIC AMOUNT OF AN AMINE, WITH SUBSEQUENT REACTION WITH AN EQUIMOLAR AMOUNT OF AN ALKALI METAL ALCOHOLATE AT A TEMPERATURE BELOW 40 DEG C.