A novel selective fragmentation of cycloalkanones by NaNO2/HCl has been established. The C–Cbond cleavage reaction proceeds smoothly under mild conditions, selectively affording versatile keto acids or oxime acids. The methodology can streamline the synthesis of valuable chiral molecules and isocoumarins from readily available feedstocks.
Organo‐radical catalysts have recently attracted great interest, and the development of this field can be expected to broaden the applications of organocatalysis. Herein, the first example of a radical‐generating system is reported that does not require any photoirradiation, radical initiators, or preactivated substrates. The oxidativeC−C‐bondcleavage of 2‐substituted cyclohexanones was achieved