Synthesis of New Cyclopentenofullerenes Containing a Norbornene Fragment
摘要:
ab]Abstract Endic acid imides were synthesized by direct fusion of endic anhydride with various amino acids. Further transformations of the resulting acids gave new 2,3-dienoic acids containing a norbornene fragment. Triphenylphosphine-catalyzed [3+2]-cycloaddition of the latter to fullerene C-60 afforded the corresponding cyclopentenofullerenes.
Features of reactions between (3,5-dioxo-4-azatricyclo-[5.2.1.02-endo,6-endo ]dec-8-en-4-yl)carboxylic acids and p-nitrophenyl azide
作者:I. N. Tarabara、Ya. S. Bondarenko、L. I. Kas’yan
DOI:10.1134/s1070428009020146
日期:2009.2
Reactions were performed of (3,5-dioxo-4-azatricyclo[5.2.1.0(2-endo,6-endo) ]dec-8-en-4-yl)carboxylic acids and their derivatives with p-nitrophenyl azide. A significant fact of the involvement of the carboxy group into the formation of aziridine ring was established and the intermolecular character of this process was confirmed. The structure of compounds synthesized was proved by IR and H-1 NMR spectra.