Chemoselective Esterification and Amidation of Carboxylic Acids with Imidazole Carbamates and Ureas
Stephen T. Heller and Richmond Sarpong*
*Department of Chemistry, University of California, Berkeley, California 94720, United States, Email: rsarpongberkeley.edu
S. T. Heller, R. Sarpong, Org. Lett., 2010, 12, 4572-4575.
Imidazole carbamates and ureas are chemoselective esterification and amidation reagents. A simple synthetic procedure allows the conversion of a wide variety of carboxylic acids to ester or amide analogues in high yields.
see article for more examples
esterification, Weinreb amides