Manganese Oxide Promoted Liquid‐Phase Aerobic Oxidative Amidation of Methylarenes to Monoamides Using Ammonia Surrogates

In the presence of amorphous MnO(2), various methylarenes (even with two or more methyl groups) could be selectively converted into the corresponding primary monoamides in moderate to high yields. The observed catalysis was truly heterogeneous, and the retrieved amorphous MnO(2) catalyst could be reused without an appreciable loss of its catalytic performance.