文献类型：期刊文献

英文题名：Helianthus-like cucurbit[4] uril and cucurbit[5] uril analogues

作者：Wu, Yufan;Xu, Lixi;Shen, Yenan;Wang, Yang;Wang, Qiaochun[1]

机构：[1]East China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; East China Univ Sci Technol, Sch Chem & Mol Engn, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2017

卷号：41

期号：15

起止页码：6991

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000406192800008)】；

基金：This study was financially supported by the NSFC/China (21572063, 21372076, and 21072058), the Science Fund for Creative Research Groups (21421004), the Programme of Introducing Talents of Discipline to Universities (B16017), and the Fundamental Research Funds for the Central Universities 222201717003.

语种：英文

摘要：A new glycoluril-like molecule, cyclopentanopropanediurea (CyP-TD), was prepared by malonic ester synthesis. Its condensation with paraformaldehyde resulted in two Helianthus-like cucurbituril analogues, CyP4TD[4] and CyP5TD[5], with cyclopentano groups evenly distributed on the equators. The structures of the two macrocycles were confirmed by H-1-NMR, HRMS-ES and single-crystal X-ray diffraction. CyP4TD[4] and CyP5TD[5] both exhibit excellent thermal stability, and CyP5TD[5] has better solubility in water and organic solvents, while CyP4TD[4] can hardly dissolve in them.