(2E,25E)-11,14,17,33,36,39,42-Heptaoxapentacyclo[41.4.0.05,10.018,23.027,32]heptatetraconta-1(43),2,5(10),6,8,18,20,22,25,27,29,31,44,46-tetradecaene-4,24-dione
نویسندگان
چکیده
The title compound, C(40)H(40)O(9), is a product of the double crotonic condensation of bis-(2-acetyl-phen-oxy)-3-oxapentane with bis-(2-formyl-phen-oxy)-3,6-dioxaoctane. The title macromolecule includes the 31-crown-7-ether skeletal unit and adopts a saddle-like conformation. The two ethyl-ene fragments have E configurations. The volume of the inter-nal cavity of the macrocycle is approximately 125 Å(3). In the crystal, the mol-ecules are arranged at van der Waals distances.
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