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Process for preparing ethylenedialkylphosphinic acids, esters and salts by means of acetylene and use thereof
Process for preparing ethylenedialkylphosphinic acids, esters and salts by means of acetylene and use thereof
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机译:借助乙炔制备乙二烷基次膦酸,酯和盐的方法及其用途
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摘要
A process for preparing ethylenedialkylphosphinic acids, ethylenedialkylphosphinic esters and ethylenedialkylphosphinic salts, wherein a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to give an alkylphosphonous acid, its salt or ester (II), b) the resultant alkylphosphonous acid, its salt or ester (II) is reacted with an acetylenic compound (V) in the presence of a catalyst B, to give the ethylenedialkylphosphinic acid derivative (III), and the catalyst A comprises transition metals, transition-metal compounds and/or catalyst systems which are composed of a transition metal and/or a transition-metal compound and at least one ligand, and the catalyst B comprises peroxide-forming compounds, peroxo compounds and/or azo compounds.
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