One-Pot Decarboxylative Acylation of N-, O-, S-Nucleophiles and Peptides with 2,2-Disubstituted Malonic Acids

Monocarbonyl activation of 2,2-disubstituted malonic acids with benzotriazole leads to decarboxylation of one of the carboxy groups and formation of a CH bond. Intermediate carbonyl benzotriazoles then readily acylate nucleophilic reagents and peptides resulting in libraries of conjugates and peptidomimetics.