Multiple Adducts of C60 by Tether-Directed Remote Functionalization and synthesis of soluble derivatives of new carbon allotropes Cn(60+5)
作者:Lyle Isaacs、Fran�ois Diederich、Richard F. Haldimann
DOI:10.1002/hlca.19970800202
日期:1997.3.24
comprehensive series of multiple adducts of C60 was prepared by tether-directed remote functionalization. When the tether-reactive-group conjugates 2 and 10 were attached to methano[60]fullerenecarboxylic acid ( = cyclopropafullerene-C60-Ih-carboxylic acid) and C60, respectively, the e-bis-adducts 4 and 9 (Schemes 1 and 2) were obtained with complete regioselectivity as predicted by semi-empirical PM3 calculations
通过系链导向的远程功能化制备了一系列全面的C 60多种加合物。当系绳反应性基团的缀合物2和10分别附接到甲基[60] fullerenecarboxylic酸(= cyclopropafullerene-C 60 -我ħ羧酸)和C 60,分别Ë双-加合物4和9(方案如通过半经验PM3计算所预测的,获得具有完全区域选择性的1和2)(图2)。锚链反应性基团共轭物13与C的连接通过Bingel反应,在60 ℃下进行反应,随后进行两次分子内Diels-Alder环加成反应,得到tris-加合物12(方案3)。从开始12,一系列选择性的Ë导致四-加合物-additions 16和19(方案4),五-加合物20 - 23(方案5),并最终到六加合物24和25(方案6),29和30(方案7)在富勒烯核上具有伪八面体加成模式。在Eglinton-Glaser条件下二乙炔基甲基富勒烯30的氧化环化分别提供三