title: 1,3-Bridged p-methyloctahomotetraoxacalix[4]arene-bis-crown-3.
abstract: The title compound, 13,21,35,43-tetramethyl-3,6,9,17,25,28,31,39,46,49-decaoxaheptacyclo[21.21.3.3(11,33).0(2,41).0(10,15).0(19,24).0(32,37)]pentaconta-1,10,12,14,19,21,23,32,34,36,41,43-dodecaene, C(44)H(52)O(10), differs from previously reported 1,3-bridged calix[4]arene[bond]bis-crown compounds in having an enlarged calixarene ring and shorter polyoxyethylene bridges. The cavity is partly filled by the bridges.
authors.affiliation: Chemistry Department, University of Rome I La Sapienza, P.le A. Moro 5, I-00185 Rome, Italy.
authors.forename: Bernardo
authors.initials: B
authors.lastname: Masci
authors.forename: Marcello
authors.initials: M
authors.lastname: Colapietro
authors.forename: Gustavo
authors.initials: G
authors.lastname: Portalone
authors.forename: Stefano
authors.initials: S
authors.lastname: Saccheo