作者:Seiji Shinkai、Koji Araki、Peter D. J. Grootenhuis、David N. Reinhoudt
DOI:10.1039/p29910001883
日期:——
Neutral, water-soluble 5,11,17,23-tetrakis[bis-(2-hydroxyethyl)aminosulphonyl]calix[4]arene-25,26,27,28-tetraol and 5,11,17,23-tetranitrocalix[4]arene-25,26,27,28-tetraol have been synthesized and the pK(a) values of the OH groups determined in an aqueous system.