Cover Picture: Transfer Hydrogenation of Ethyl Levulinate to γ ‐Valerolactone Catalyzed by Iron Complexes (Chin. J. Chem. 4/2015)

The cover picture shows a new and green transformation path for the synthesis of γ ‐valerolactone from biomass‐derived ethyl levulinate, which is realized by iron‐catalyzed transfer hydrogenation. γ ‐Valerolactone is a valuable chemical, which can be used as liquid fuel, food additive, solvent and also intermediate for organic synthesis. By utilizing Casey's catalyst and cheap isopropanol as hydrogen source, γ ‐valerolactone can be generated in 95% yield. Addition of catalytic amount of base is important to achieve good yield. More details are discussed in the communication by Fu et al . on page 405–408.