H3PO2，一种一元含氧酸，也称为次膦酸。H3PO2 作为还原剂参与芳族和脂族二硒醚转化成相应的硒醇。 它在Ce（IV）和强酸存在下进行氧化，得到铈（IV）次磷酸盐络合离子。 General description H3PO2, a monobasic oxyacid, is also referred to as phosphinic acid. H3PO2 participates as a reducing agent for the conversion of aromatic and aliphatic diselenides to the corresponding selenols. It undergoes oxidation in the presence of Ce(IV) and a strong acid to afford cerium(IV) hypophosphite complex ions.