Refluxing calix[4]-1,3-substituted benzaldehyde derivative(4) with glycine hydrazide derivative, we obtained a novel calix[4]arene hydrazone derivative(5) via "1+2" condensation in a yield of 78%. In the reaction of compound 4 with L-leucine hydrazide derivative at room temperature, lariat calix[4]-1,3-aza-crown(6) with chiral amino acid group as branched chain was synthesized via "1+ 1" addition in a yield of 70%. The preliminary extraction experiments suggested that hosting compounds 5 and 6 possessed good complexation abilities for a-amino acids.
YANG Fa-fuHUANG Zhi-shengGUO Hong-yuHONG Bi-qiongZHANG Xiao-yi