Acylation of 2,5-Dimethoxycarbonyl[60]fulleropyrrolidine and Synthesis of Its Multifullerene Derivatives
作者:Sheng Zhang、Liangbing Gan、Chunhui Huang、Mujian Lu、Jinqi Pan、Xiaoran He
DOI:10.1021/jo016099p
日期:2002.2.1
indicate that the rotation of the relatively bulky phthaloyl group is hindered around the amide bond N [bond] C(O), the rotation barrier of which is 15.06 kcal/mol. The relative stereochemistry of the 2,5-dimethoxycarbonyl groups is established by (1)H NMR spectra and further confirmed by resolution of the enantiomeric 2,5-trans-isomer of the starting material 1.
具有多官能团的其他分子与4的反应相似,形成多富勒烯衍生物。NMR数据表明,相对大的邻苯二甲酰基的旋转受酰胺键N [键] C(O)的阻碍,其旋转势垒为15.06kcal / mol。2,5-二甲氧基羰基的相对立体化学通过(1)H NMR光谱确定,并通过原料1的对映体2,5-反式异构体的拆分进一步证实。