一种纯有机超分子室温磷光材料的晶体结构及性能研究

DOI: 10.16597/j.cnki.issn.1002-154x.2024.06.008

作者：张丽彦 张曙

单位：东南大学化学化工学院，南京 211189

摘要：光诱导[2+2]环加成反应是有机教科书中的一个经典反应，能够一步构建两个新的C—C键，生成含4个立体中心的高张力环丁烷化合物。近年来，大量研究表明葫芦[8]脲作为一种独特的大环化合物，在光诱导[2+2]环加成反应中展现出优异的催化性能。葫芦[8]脲不仅提高了[2+2]环加成反应的反应速率和转化率，并且因其空腔结构能选择性地结合客体分子从而控制反应底物的空间排列，使得反应具有立体选择性。作者综述了葫芦[8]脲在催化光诱导[2+2]环加成反应中的研究进展，并揭示了主客体相互作用在控制化学反应路径和产物选择性方面的巨大潜力。

关键词：超分子化学 葫芦[8]脲 [2+2]环加成

Author: ZHANG Liyan, ZHANG Shu

Affiliation: School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China

Abstract: The photoinduced [2+2] cycloaddition reaction is a classic reaction in organic chemistry textbooks. It can construct two new C—C bonds in one step, generating high-tension cyclobutane compounds containing four stereocenters. In recent years, a number of studies have demonstrated that cucurbit[8]uril, a distinctive macrocyclic compound, exhibits remarkable catalytic performance in photoinduced [2+2] cycloaddition reactions. Cucurbit[8]uril not only enhances the rate and extent of photoinduced [2+2] cycloaddition reaction, but also controls the spatial arrangement of the reaction substrates due to its cavity structure, which enables the selective binding of guest molecules, thereby rendering the reaction stereoselective. This article presents a summary of the research progress made in the field of catalytic photoinduced [2+2] cycloaddition reactions using cucurbit[8]uril. It also discusses the potential of host-guest interactions in controlling chemical reaction pathways and product selectivity.

Keywords: supramolecular chemistry, cucurbit[8]uril, photoinduced [2+2] cycloaddition