作者:Béatrice Legouin、Maud Gayral、Philippe Uriac、Jean-François Cupif、Nicolas Levoin、Loic Toupet、Pierre van de Weghe
DOI:10.1002/ejoc.201000729
日期:——
A chiral molecular tweezer obtained from (+)-usnic acid placed in solution in the presence of various aromatic compounds afforded complexes with low association constants. Thus, the X-ray structure of assembly 3i is presented, where the guest is sandwiched between the two pincers of the tweezer. The association constants for various guests were determined through different methods. Finally, other tweezers
在各种芳香族化合物存在的情况下,从 (+)-usnic 酸溶液中获得的手性分子镊子提供了具有低缔合常数的复合物。因此,呈现组件 3i 的 X 射线结构,其中客体夹在镊子的两个钳子之间。各种客人的关联常数是通过不同的方法确定的。最后,由 (1R,2R)-1,2-二氨基环己烷制备了其他带有富电子芳香醛和酮的镊子。最有趣的配合物也通过结构分析得到证实,并且以 10-羟基菲-9-甲醛 (5i) 作为芳香部分获得了最好的结果。