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Over metal catalysts, N‐heteroarenes, as one of the most versatile building blocks in pharmaceuticals, bioactive molecules and natural products, can be easily accessed by the oxidation of N‐heterocycles. Herein, we describe N‐doped hierarchical pore carbons (N‐HPCs) derived from readily available biomass (flour) efficiently catalyzed aerobic dehydrogenation of N‐heterocycles without any additives under mild conditions, owing to N dopant and high surface area indicated by characterization analysis. A wide range of N‐heteroarenes including quinolines, quinolinol, dihydroisoquinolines, isoquinolines, indoles, quinoxaline and acridine were obtained in good to excellent yields (36 examples, up to 99% yield). Mechanistic studies revealed a strikingly different non‐free radical process from metal catalysts, for which an apparent activation energy of 66.4 kJ mol−1 was found. Moreover, the N‐doped carbon exhibited robust stability and yielded 74.5% quinoline at the sixth reaction. The use of metal‐free catalysts in organic synthesis is attractive but practically challenging. This work provides a promising example for metal‐free catalysis. [ABSTRACT FROM AUTHOR]

Kinetic analysis demonstrates that the C-H bond cleavage is the rate-determining step and that a carbocation may be involved in the reaction. [ABSTRACT FROM AUTHOR]

Aldehydes and ketones are prepared in good to excellent yields by oxidation of various alcohols including primary benzylic, allylic, alkynyl, aliphatic alcohols, and secondary benzylic alcohols. [ABSTRACT FROM AUTHOR]

30 examples [ABSTRACT FROM AUTHOR]

An abstract of the article "Synthesis of 6,7-Dihydro-5H-cyclopenta[b]pyridin-5-one Analogues Through Manganese-Catalyzed Oxidation of the CH2 Adjacent to Pyridine Moiety in Water" by L. Ren et al. is presented.

This highly enantioselective asymmetric oxidation can also be applied to the synthesis of esomeprazole, which is a chiral proton pump inhibitor. [ABSTRACT FROM AUTHOR]