Synthesis of New Chromene-Containing Pyrrolofullerenes

Abstract

Three-component condensation of substituted 4-oxochromene-3-carbaldehydes with sarcosine and fullerene C60 afforded 2′-(4-oxochromen-3-yl)-1′-methyl-2′,5′-dihydro-1′H-pyrrolo[3′,4′:1,9](C60-Ih)[5,6]fullerenes. The structure of the synthesized compounds was studied by 1H and 13C NMR spectroscopy, including 1H–1H COSY and 1H–13C HMQC experiments.