A Convenient Synthesis of Novel Meldrum's Acid C₆₀ Fullerene Derivatives

Abstract

Abstract A series of novel Meldrum′s acid C 60 derivatives were prepared in moderate yields from a convenient one‐pot reaction of C 60 , the Meldrum's acid derivatives, I 2 and 1,8‐diazabicyclo‐[5,4,0]‐undec‐7‐ene (DBU) in toluene at room temperature under nitrogen atmosphere. All the new compounds were fully characterized by the spectral data and elemental analysis. A carbene intermediate mechanism was proposed for this reaction.