Glycine is used to prepare an air-stable and water-soluble catalyst for the Suzuki–Miyaura reaction. In the presence of 0.1% [PdCl2(NH2CH2COOH)2], excellent catalytic activity is observed at room temperature under air in neat water.
A green synthesis of variously substituted biphenyl carboxylic acids was achieved through Suzuki–Miyaura cross-coupling of a bromobenzoic acid with an aryl boronic acid using a water-soluble fullerene-supported PdCl2 nanocatalyst (C60-TEGs/PdCl2). Yields of more than 90% were obtained at room temperature in 4 h using 0.05 mol% catalyst and 2 equiv. K2CO3.