Preparation of homochiral phenolic crown ether having chiral subunits derived from (1R,2S)-cis-1,2,3,4-tetrahydronaphthalene-1,2-diol: temperature-dependent enantioselectivity in complexations with neutral amines
作者:Koichiro Naemura、Takanori Wakebe、Keiji Hirose、Yoshito Tobe
DOI:10.1016/s0957-4166(97)00282-6
日期:1997.8
Crown ether (S,R,R,S)-1 containing chiral subunits derived from (1R,2S)-cis-1,2,3,4-tetrahydronaphthalene-1,2-diol and the phenol moiety bearing the intra-annular OH group and the 2,4-dinitrophenylazo group at its para-position have been prepared in enantiomerically pure form. The association constants for the complexes with chiral amines have been determined at various temperatures by the UV-visible
含有衍生自(1 R,2 S)-顺式-1,2,3,4-四氢萘-1,2-二醇的手性亚基的冠醚(S,R,R,S)-1和带有内部环状OH基和对位的2,4-二硝基苯基偶氮基已经以对映体纯的形式制备。通过紫外可见光谱法测定了在各种温度下与手性胺的配合物的缔合常数,并计算了配合物形成的热力学参数。