Di-(<i>R,R</i>)-1-[10-(1-hydroxy-2,2,2-trifluoroethyl)-9-anthryl]-2,2,2-trifluoroethyl Muconate: A Highly Chiral Cavity for Enantiodiscrimination by NMR
作者:Martina Palomino-Schätzlein、Albert Virgili、Sergio Gil、Carlos Jaime
DOI:10.1021/jo061276d
日期:2006.10.1
A new chiral molecular tweezer, di-(R,R)-1-[10-(1-hydroxy-2,2,2-trifluoroethyl)-9-anthryl]-2,2,2-trifluoroethyl muconate 2, was synthesized in enantiopure form, and its geometry was studied using NMR and molecular mechanics. The effectiveness of 2 as a chiral solvating agent for determining the enantiomeric composition of chiral compounds using NMR was demonstrated, improving the results obtained with
一种新的手性分子钳,二- (R,R)-1- [10-(1-羟基-2,2,2-三氟乙基)-9-蒽基] -2,2,2-三氟乙基粘康2,合成呈对映纯形式,并使用NMR和分子力学研究了其几何形状。证明了2作为手性溶剂化剂使用NMR测定手性化合物的对映体组成的有效性,改善了其他方法获得的结果。研究了所得非对映异构体配合物的化学计量和缔合常数,并通过NOE和1 H NMR分析了它们的几何形状。