Condensation reactions of calix[4]arenes with unprotected hydroxyamines, and their resulting water solubilities
作者:Inese Smukste、David B Smithrud
DOI:10.1016/s0040-4020(01)00965-6
日期:2001.11
describe a convenient method to create neutrally charged, watersolublecalix[4]arenes that contain hydroxyamides attached to their lower rims. Selective amidation reactions of a diacid calix[4]arene with several unprotected hydroxyamines was achieved using 2-ethoxy-1,2-dihydroquinoline as the coupling agent. The solubilities of the derivatized calix[4]arenes depended on the structure of the hydroxyamide