Verfahren zur Herstellung von Vinylphosphonsäure-Verbindungen

摘要

The invention relates to a method for producing vinyl phosphonic acid compounds of general formula (I) wherein R<1> and R<2> are independently H, C1-16-aryl, C7-12-alkaryl or C7-12-aralkyl radicals, wherein the organic radicals can be substituted by one or several halogen atoms, hydroxyl, acyl or acetoxy groups. Production occurs by reacting phosphoric acid compounds of general formula (II) with acetylene in the presence of a Pd(II) complex and/or a Pd(0) complex or corresponding Pt complexes as a catalyst.