Structural Reassignment of the Mono- and Bis-Addition Products from the Addition Reactions of N-(Diphenylmethylene)glycinate Esters to [60]Fullerene under Bingel Conditions
The Journal of Organic Chemistry2005Vol. 70(21), pp. 8572–8574
Citations Over TimeTop 14% of 2005 papers
Graham E. Ball, Glenn A. Burley, Leila Chaker, Bill C. Hawkins, James R. Williams, Paul A. Keller, Stephen G. Pyne
Abstract
The addition of N-(diphenylmethylene)glycinate esters (Ph2C=NCH2CO2R) to [60]fullerene under Bingel conditions gives [60]fullerenyldihydropyrroles and not methano[60]fullerenyl iminoesters [C60C(CO2R)(N=CPh2)] as previously reported. Unequivocal evidence for the structure of C60C(CO2Et)(N=CPh2) was provided by INADEQUATE NMR studies on 13C enriched material. New mechanistic details are proposed to account for the formation of [60]fullerenyldihydropyrroles and their reductive ring-opening reactions.
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