Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 3 (March 2013)


organic compounds



fj2615 scheme

Acta Cryst. (2013). E69, o424    [ doi:10.1107/S1600536813004625 ]

5,17-Diformyl-25,26,27,28-tetrapropoxycalix[4]arene

Z. Li, H. Ma, Y. Lai, L. Chen and X. Sun

Abstract: The title compound, C42H48O6, was obtained via formylation of 25,26,27,28-tetrapropoxycalix[4]arene with dichloromethyl methyl ether and tin tetrachloride. It adopts a pinched cone conformation, which leads to an open cavity. The two opposite aromatic rings bearing formyl groups are almost parallel, making a dihedral angle of 29.1 (2)°. The other pair of opposite rings are close to being perpendicular, making a dihedral angle of 73.6 (1)°. Adjacent rings are almost perpendicular, making dihedral angles of 78.8 (2), 81.6 (1), 78.2 (1) and 74.7 (1)°.


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