crystal structure of 22,24,25-trimethyl-8,11,14-trioxa-25-azatetracyclo[19.3.1.02,7.015,20]pentacosa-2,4,6,15(20),16,18-hexaen-23-one
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ID: 185205
2017
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Abstract
The title compound, C24H29NO4, is the product of a Petrenko–Kritchenko condensation of 1,5-bis(2-formylphenoxy)-3-oxapentane, pentan-3-one and methylammonium acetate in ethanol. The molecule has mirror symmetry. The aza-14-crown-3 ether ring adopts a bowl conformation stabilized by a weak intramolecular C—H...O hydrogen bond. The conformation of the C—O—C—C—O—C—C—O—C polyether chain is t–g+–t–t–g−–t (t = trans, 180°; g = gauche, ±60°). The dihedral angle between the benzene rings fused to the aza-14-crown-4-ether moiety is 72.68 (4)°. The piperidinone ring adopts a chair conformation. The nitrogen atom has a trigonal–pyramidal geometry, the sum of the bond angles being 335.9°. In the crystal, the molecules are linked by weak C—H...O interactions, forming zigzag chains propagating along the [100] direction.
| Reference Key |
nguyen2017actacrystal
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|---|---|
| Authors | ;Van Tuyen Nguyen;Hong Hieu Truong;Tuan Anh Le;Anatoly T. Soldatenkov;Tuyet Anh Dang Thi;Thi Thanh Van Tran;Natalia Ya. Esina;Victor N. Khrustalev |
| Journal | Disability and rehabilitation |
| Year | 2017 |
| DOI |
10.1107/S2056989016020508
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| URL | |
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