2-Ethoxy-2,3-dihydro[d][1,2]oxaphosphole 2-oxide in the synthesis of dialkyl(diaryl)(2-hydroxybenzyl)phosphine oxides

A facile method of synthesis of functionally substituted P(IV) derivatives―dialkyl(diaryl)(2-hydroxybenzyl) phosphine oxides―by the reaction of 2-ethoxy-2,3-dihydro[d][1,2]oxaphosphole 2-oxide with organomagnesium compounds, which allows wide variation of substituents on the phosphorus atom was developed.