Bröhmer, Manuel C Chelating carboxylic acid amides as robust relay protecting groups of carboxylic acids and their cleavage under mild conditions. [electronic resource] - Angewandte Chemie (International ed. in English) Jun 2011 - 6175-7 p. digital Publication Type: Journal Article ISSN: 1521-3773 Standard No.: 10.1002/anie.201100271 doi