Synthesis and structure elucidation of a new [2]-catenane
作者:Christopher A. Hunter
DOI:10.1021/ja00039a047
日期:1992.6
A supramolecular self-assembly process has lead to the synthesis of new type of [2]-catenane. A 34% yield of catenane was obtained from a one-pot double macrocyclization reaction. Its three-dimensional structure was determined structure was determined by using two-dimensional 1 H NMR spectroscopy. This structure agrees well the predictions of molecular mechanics calculations, altough there is some
超分子自组装过程导致了新型[2]-链烯的合成。从一锅双大环化反应中获得了 34% 的链烷烃收率。其三维结构确定 结构通过二维 1 H NMR 光谱确定。这种结构与分子力学计算的预测非常吻合,尽管其中一个酰胺键的取向有些模糊。该分子通过几个大环间 H 键和 π-π 相互作用锁定在明确定义的构象中,正是这些相互作用为联锁环系统的组装提供了模板。通过变温 1 H NMR 研究了链烷烃的动态特性
Directed macrocyclisation reactions
作者:Fiona J. Carver、Christopher A. Hunter、Richard J. Shannon
DOI:10.1039/c39940001277
日期:——
Macrocyclic hosts are prepared in 80–90% yields by using intramolecular hydrogen-bonding interactions to direct the cyclisation; in the absence of such effects, intermolecular hydrogen-bonding interactions template the formation of catenanes.