synthesized. Three regioisomers, the e', the trans-2, and the trans-3, were isolated and characterized. In-depth NMR studies of these methano-pyrrolidinofullerenes showed that the nitrogen inversion on the pyrrolidine moiety is not a fast event in the 1H NMR time scale as previously regarded. Solvent effects, variable temperature experiments, and protonation of the pyrrolidine nitrogen are addressed.
合成了含有
吡咯烷和
丙二酸亚甲基的C60的混合双加合物衍
生物。分离并表征了三种区域异构体,e',trans-2和trans-3。对这些
甲烷-
吡咯烷基
富勒烯的深入NMR研究表明,
吡咯烷部分的氮转化在1H NMR时间范围内并不是一个快速事件,正如先前所认为的那样。解决了溶剂效应,可变温度实验和
吡咯烷氮的质子化。