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. ... The novel conversion of carboxylic acids and carboxylic acid chlorides directly in a one-pot process into N-monosubstituted carbamoyl azides, presumably through the intermediacy of isocyanate derivatives following Curtius rearrangement, is described. ... Optimal conditions are ...