Porphyrin Dendrimers with a Fullerene C₆₀ in the Dendritic Branches

Abstract

Porphyrin-dendrimers with a fullerene C₆₀ in the dendritic branches were obtained by cyclization of dendritic bis-malonate derivatives at the carbon sphere. The bis-adducts of C₆₀ were synthesized through a macrocyclization reaction with bismalonate derivatives in a double Bingel addition afforded the C _s -symmetric cis-2 bis-adducts. The resulting porphyrin bis-methanofullerene derivatives were characterized by IR, ¹H and ¹³C NMR, UV–VIS absorption, electrospray (ES) and/or MALDI-TOF mass spectrometries.

Keywords:

• Dendrimers
• fullerene
• porphyrin

Acknowledgments

This work was supported by the DGAPA (IN202010-3). We would also like to thank O. H. Rios, L. Velasco, S. E. Huerta, M. M. R. Patiño, G. M. A. Peña, and A. C. Marquez for technical assistance.