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. 2011 May 1;67(Pt 5):o1128-9.
doi: 10.1107/S1600536811013201. Epub 2011 Apr 13.

(2E,25E)-11,14,17,33,36,39,42-Hepta-oxa-penta-cyclo-[41.4.0.0.0.0]hepta-tetra-conta-1(43),2,5(10),6,8,18,20,22,25,27,29,31,44,46-tetra-decaene-4,24-dione

Le Tuan Anh, Truong Hong Hieu, Anatoly T Soldatenkov, Svetlana A Soldatova, Victor N Khrustalev

(2E,25E)-11,14,17,33,36,39,42-Hepta-oxa-penta-cyclo-[41.4.0.0.0.0]hepta-tetra-conta-1(43),2,5(10),6,8,18,20,22,25,27,29,31,44,46-tetra-decaene-4,24-dione

Le Tuan Anh et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

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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Figures

Fig. 1.
Fig. 1.
Molecular structure of I with the atom numbering scheme. Displacement ellipsoids are shown at the 50% probability level. H atoms are presented as a small spheres of arbitrary radius.
Fig. 2.
Fig. 2.
Domino cyclocondensation of bis(2-acetylphenoxy)-3-oxapentane with bis(2-formylphenoxy)-3,6-dioxaoctane.
See this image and copyright information in PMC

References

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