Bismalonates Constructed on a Hexaphenylbenzene Scaffold for the Synthesis ofEquatorialFullerene Bisadducts

Autor:	François Cardinali, Jean Olivier, Jean-François Nierengarten, Aline Gégout, Teresa M. Figueira-Duarte
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Fullerene Stereochemistry Chemistry Organic Chemistry Regioselectivity Carbon-13 NMR Chemical synthesis Aldehyde Cyclopropane chemistry.chemical_compound Polymer chemistry Molecular symmetry Physical and Theoretical Chemistry Hexaphenylbenzene
Zdroj:	European Journal of Organic Chemistry. 2009:3879-3884
ISSN:	1099-0690 1434-193X
DOI:	10.1002/ejoc.200900290
Popis:	Hexaphenylbenzene derivatives bearing two aldehyde groups were prepared by reaction of 4,4′-(ethyne-1,2-diyl)dibenzaldehyde with bisarylalkynes in the presence of a catalytic amount of Co2(CO)8. These synthetic intermediates were used to produce the corresponding bismalonates. Finally, macrocyclization of the bismalonates with C60 afforded equatorial fullerene bisadducts. The relative position of the two cyclopropane rings on the C60 core was determined on the basis of the molecular symmetry (C1) deduced from the 1H and 13C NMR spectra and further confirmed by the characteristic features seen in their UV/Vis spectra.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
Databáze:	OpenAIRE
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