Synonyms:phosphinous acid;25756-87-0;Hydroxyphosphine;HPH2O;hydroxyphosphorane;dihydridohydroxidophosphorus;[PH2(OH)];CHEBI:29260;DTXSID80276387;Q27109992
The research presents a simple method for the synthesis of substituted phosphide and phosphinite anions using concentrated aqueous alkali in dimethyl sulfoxide or other dipolar aprotic solvents. The study explores the acidity relationship of phosphines and phosphinous acids in these solvents and water, revealing that the acidity of certain phosphines and phosphinous acids in dimethyl sulfoxide is higher than that of water, allowing for the generation of their anions using aqueous alkali. Key chemicals involved in the research include primary and secondary phosphines, phosphinous acids, concentrated aqueous alkali (such as potassium hydroxide), and dipolar aprotic solvents like dimethyl sulfoxide, dimethylformamide, dimethylacetamide, and hexamethylphosphoric triamide. The phosphide and phosphinite anions generated are then used in alkylation reactions to produce secondary and tertiary phosphines, polyphosphines, functionally substituted phosphines, and similarly structured phosphine oxides. The research also investigates the alkylation of phosphinous acids in various solvents and the use of phase transfer catalysts in two-phase systems for the synthesis of certain phosphorus compounds.
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