Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... Pentacoordinated and quinquevalent phosphorus intermediates, have been isolated by reaction between the title reagent and carboxylic acids, prior to conversion into amides. ... J. Diago-Meseguer, JR Fernandez-Lizarbe, AL Palomo-Coll and A. Zugaza-Bilbao. Gema ...