| 摘要 |
PURPOSE:To obtain a fullerene derivative with electrons transferable in the molecule, hopeful of use for photoconductive materials, optical sensor materials, nonlinear optical materials and photorefractive materials. CONSTITUTION:This derivative is expressed by formula I [F1 with circle is fullerene of C60 or C70; at least one of R1 and R2 is formula II (R3 and R4 are each H, an alkyl or a cycloalkyl), the other being an alkyl-, a cycloalkyl- or a halogen-substituted phenyl; (n) is 1-3], e.g. a fullerene C60 derivative of formula III. This compound of formula I can be obtained by reaction of a diazomethane compound of formula IV [at least one of R5 and R6 is NR7(R8) (R7 an R8 are each H, an alkyl or a cycloalkyl), the other being H, an alkyl, a cycloalkyl or a halogen] with C60 or C70 fullerene. The compound of formula IV can e prepared by oxidizing a hydrazone compound of formula V (R4 and R10 are the same as R5 and R6, respectively). |
