Aziridination of C<sub>60</sub> with Simple Amides and Catalytic Rearrangement of the Aziridinofullerenes to Azafulleroids
作者:Ryoji Tsuruoka、Toshiki Nagamachi、Yuta Murakami、Mitsuo Komatsu、Satoshi Minakata
DOI:10.1021/jo8025737
日期:2009.2.20
ionic aziridination is a very convenient and risk-free procedure compared with the conventional method with azides as nitrogen sources, and gives aziridinofullerenes from various readily available amides (carbamates, ureas, carboxamides, and phosphamides). For example, benzyl carbamate was chlorinated by tert-butyl hypochlorite (tert-BuOCl) and then reacted with C60 in the presence of base to give
实现了作为富勒烯衍生物引入的N 1单元的异构体的叠氮富勒富勒烯和氮杂富勒烯的选择性形成。与以叠氮化物为氮源的常规方法相比,离子叠氮是一种非常方便且无风险的方法,并且可以从各种容易获得的酰胺(氨基甲酸酯,尿素,羧酰胺和磷酰胺)得到叠氮富勒烯。例如,氨基甲酸苄酯用次氯酸叔丁酯(叔丁基OCOCl)氯化,然后在碱的存在下与C 60反应,得到N-苄氧羰基叠氮富勒烯只存在而没有形成其异构体,即氮杂富勒烯。该反应使得能够合成具有三烷氧基甲硅烷基和氨基酸部分的功能性富勒烯衍生物。通过将相应的叠氮富勒烯通过氯胺催化剂和MS4A的组合进行重排获得了氮杂富勒烯。在使用的其他氯胺中,氯胺B(CB)在重排中显示出优异的催化能力。发现MS4A在反应中起路易斯酸的作用。