the basis of sequential azide–aryne and azide–alkyne cycloadditions. The key to success was efficient halogen–metalexchange reaction-mediated generation of aryne from ortho-iodoaryl triflates bearing a base-sensitive terminal alkyne moiety, which was achieved using trimethylsilylmethyl Grignardreagent.
Sugar-based novel chiral macrocycles for inclusion applications and chiral recognition
作者:Ankita Singh、Vinod Khatri、Shashwat Malhotra、Ashok K. Prasad
DOI:10.1016/j.carres.2015.12.006
日期:2016.2
A convergent template assisted synthesis of sugar-based chiral macrocycles has been achieved. The host-guest inclusion studies have revealed significant interactions of the synthesized macrocycle with primary over secondary ammonium salt. The chiral macrocyle also discriminates between D- and L-phenylalanine methyl ester hydrochlorides as revealed by (1)H NMR spectral studies on the mixture of the
已经实现了收敛模板辅助的基于糖的手性大环化合物的合成。主客体夹杂物研究表明,合成的大环化合物与伯铵盐相比于伯铵盐具有明显的相互作用。如对主体和客体分子的混合物的(1)1 H NMR光谱研究所揭示的,手性大环化合物还区分了D-和L-苯丙氨酸甲酯盐酸盐。