Resolution and absolute configuration of a C2-symmetric trans-2, 5-disubstituted fulleropyrrolidine
作者:Xuefei Tan、David I. Schuster、Stephen R. Wilson
DOI:10.1016/s0040-4039(98)00781-3
日期:1998.6
A series of 2, 5-disubstituted fulleropyrrolidines have been prepared by reaction of C60 with amino acids and aldehydes. The trans-d, l isomers could be resolved using a chiral isocyanate to prepare diastereomeric urea derivatives. The absolute configuration of the C2-symmetric trans isomers was assigned by correlation of their CD spectra with our previously reported sector rule for chiral fullerene
Thermal reactions of [60]fullerene with a series of aminoacids and aminoacid esters under aerobic and dark conditions have been investigated. Fulleropyrrolidines can be obtained from these reactions although an aldehyde is not added purposely. Possible reaction mechanisms involving uncommon C–N bond cleavages have been proposed to generate aldehydes, which then react with aminoacids and amino acid