Design and Synthesis of Dumbbell-Shaped POSS-C₆₀ Dyads with Flexible Spacer

Abstract

Using polyhedral oligomeric silsesquioxane (POSS) as starting material, novel dumbbell-shaped POSS-C₆₀ dyads with flexible spacers were designed and synthesized in good yields by esterification, subsequent etherification, and further 1,3-dipolar cycloaddition of azomethine ylide generated in situ from aldehyde and sarcosine to C₆₀.

GRAPHICAL ABSTRACT

Keywords:

• 1,3-Dipolar cycloaddition
• fullerene
• POSS
• synthesis

ACKNOWLEDGMENTS

Financial support from the National Natural Science Foundation of China (No. 20402002), Fujian Natural Science Foundation of China (No. 2009J01019), and Program for Excellent Young Researchers in University of Fujian Province (JA10056) were greatly acknowledged. Thanks go to Prof. Lei Zhu at Case Western Reserve University for supplying the materials.