One-step synthesis of 2-cyclopentylcyclopentanone from cyclopentanone catalyzed by NiO-Co3O4/TiO2: reaction pathway

Reaction pathway for one-step synthesis of 2-cyclopentylcyclopentanone from cyclopentanone over NiO-Co 3 O 4 /TiO 2 is first proposed. The sequence for appearance of active sites is first acid–base active sites, followed by hydrogenation active site.