Use of 2-ethoxy-1-(ethoxycarbonyl)-1,2-dihydroquinoline as a convenient reagent for the selective protection or derivatization of 2-hydroxycarboxylic acids

Article abstract of DOI:10.1016/S0040-4039(99)00509-2

EEDQ has been utilized as a convenient reagent for the selective protection of the hydroxy group of 2-hydroxycarboxylic acids. In the presence of an appropriate amine nucleophile, EEDQ has also been utilized as a reagent for the derivatization of both of