Visual chiral recognition of 1,1'-binaphthol through enantioselective collapse of gel based on an amphiphilic Schiff-base gelator

摘要

A novel gelator that contained both Schiffbase and L-lysine moieties was synthesized and its gelation behavior was tested.This gelator can form gels in various organic solvents.The resulting gel can be applied as a fascinating platform for visual recognition of enantiomeric 1-(2-hydroxynaphthalen-1-yl)naphthalen-2-ol (BINOL)through selective gel collapse.In addition,the mechanism for the reaction of the gel with chiral BINOL was investigated by scanning electron microscope and 1H nuclear magnetic resonance.