Ru@C as a safety‐release RuO3@C catalyst precursor for selective oxidative cleavage of alkenes to aldehydes or ketones and alkynes to 1, 2‐diketones

High‐performance and recyclable high valence oxides of ruthenium catalyst had been released safely from commercially available ruthenium carbon catalyst in situ. They could selectively oxidize C=C bonds to corresponding aldehydes or ketones in 78%–99% yields and C ≡ C bonds to α‐diketones in 93%–99% yields. The cheap availability, recyclability, safety, and low toxicity of ruthenium carbon might endow the catalyst with great potential in industrial scale unsaturated bond oxidation cleavage applications.