title: A New Type of Amido-Substituted p-tert-Butylcalix
abstract: A convenient method for the synthesis of intramolecularly bridged calix[6]arenes by bis(chloroacetyl)amide was reported. A 1,3-singly bridged derivative and an asymmertical 1,3-4,5 doubly bridged derivative were obtained, respectively.
authors.affiliation: Department of Chemistry, Wuhan University, Wuhan 430072, P.R.C.
authors.initials: YK
authors.lastname: Chen
authors.initials: YY
authors.lastname: Chen