VERFAHREN ZUR HERSTELLUNG VON PHOSPHORSAEUREPROPARGYLESTERN

A process for the preparation of a phosphoric acid propargyl ester of the formula wherein R1 and R2 each independently is an aryl radical or a C1-4-alkyl, C1-4-alkenyl or C1-4-alkynyl radical, and X, Y and Z each independently is oxygen or sulphur, comprising reacting a phosphoric acid monoester chl...

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Bibliographic Details
Main Authors AREND,GUENTER,DR, FEYEN,PETER,DR
Format Patent
LanguageGerman
Published 22.01.1981
Edition3
Subjects
ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM
AGRICULTURE
ANIMAL HUSBANDRY
APPARATUS THEREFOR
BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
FISHING
FORESTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
HUMAN NECESSITIES
HUNTING
METALLURGY
ORGANIC CHEMISTRY
PERFORMING OPERATIONS
PEST REPELLANTS OR ATTRACTANTS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PLANT GROWTH REGULATORS
PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF
THEIR RELEVANT APPARATUS
TRANSPORTING
TRAPPING
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Summary:A process for the preparation of a phosphoric acid propargyl ester of the formula wherein R1 and R2 each independently is an aryl radical or a C1-4-alkyl, C1-4-alkenyl or C1-4-alkynyl radical, and X, Y and Z each independently is oxygen or sulphur, comprising reacting a phosphoric acid monoester chloride or diester chloride with at least the equivalent amount of propargyl alcohol in a two-phase system in the presence of an inorganic base as an acid-trapping agent, and a catalyst comprising about 0.001 to 100 mol %, relative to the phosphoric acid ester chloride, of a tertiary amine or quaternary ammonium or phosphonium salt with at least 9 C atoms. Advantageously the catalyst is present in about 0.01 to 10 mol % relative to the phosphoric acid ester chloride and is a tertiary amine or quaternary ammonium salt, X, Y and Z are oxygen, R1 is propargyl and R2 is C1-4-alkyl, the reaction is effected in the presence of methylene chloride, chloroform or toluene as solvent, the base is used in at least the equivalent amount and is selected from the group consisting of alkali metal hydroxides, alkaline earth metal hydroxides, alkali metal carbonates and alkaline earth metal carbonates.
Bibliography:Application Number: DE19792926652