作者:Yulong Zhong、Brice Kauffmann、Wenwu Xu、Zhong-Lin Lu、Yann Ferrand、Ivan Huc、Xiao Cheng Zeng、Rui Liu、Bing Gong
DOI:10.1021/acs.orglett.0c02481
日期:2020.9.4
Aromatic oligoamides adopting helical conformations are synthesized by coupling carboxyl-terminated basic units having two, four, and eight residues to amine-terminated oligomer precursors. Coupling yields show no noticeable reduction with the size of the basic units or the final product. One- and two-dimensional NMR spectroscopy and computational studies demonstrate the reliable helical folding of these
通过将具有两个,四个和八个残基的羧基封端的碱性单元与胺封端的低聚物前体偶联来合成采用螺旋构象的芳族低酰胺。耦合产量显示基本单位或最终产品的尺寸没有明显降低。一维和二维NMR光谱学和计算研究证明了这些低聚物的可靠螺旋折叠。16mer 7的X射线结构显示出一个紧凑的多匝螺旋,其内部孔隙为9。