Synthesis of bis-α-hydroxyphosphine oxides based on salicyl aldehyde scaffold

Abstract

By addition of secondary phosphine oxides to dicarbonyl compounds obtained by binding two salicylaldehyde molecules with ether-type spacers, previously unknown bis-α-hydroxyphosphine oxides were synthesized. The obtained compounds are of interest as potential biologically active substances, complexing agents and initial building blocks in the synthesis of macrocyclic compounds bearing pendant phosphorus-containing substituents.