科研之友
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摘要
The reactions of [60] fullerene and amino acids in the absence of aldehyde in o-dichlorobenzene (ODCB) at 150 degrees C have been investigated. Fulleropyrrolidines 1 [C-60 (CH2N(CH3)CHC6H2(NO2)(3))], 2 [C-60(CH2N(CH3)CH2)], 3 [C-60(CH2NHCH2)], and 5a-b [C-60(RCHNHCHR), R=CH3 (5a), R=CH2Ph (5b)] were obtained in moderate yields from the reactions of C-60 and corresponding amino acids. The reaction of C-70 and N-methylglycine in the absence of aldehyde was also studied and was found to give the positional isomers of N-methyl[70]fulleropyrrolidines 6 (1,9-isomer) and 7(7,8-isomer). All products were fully characterized by ultraviolet-visible, Fourier transform-infrared (FT-IR), NMR, and mass spectrometry. The reactions were also carried out in the dark to exclude the possible interference of the photoinduced reactions, and almost the same yields of products were obtained.
