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

Acta Crystallographica Section E: Crystallographic Communications

Le, T.A.¹  Thi, T.A.D.²  Khrustalev, V.N.²  Truong, H.H.³  Esina, N.Y.⁵  Nguyen, V.T.⁵  Tran, T.T.V.⁶  Soldatenkov, A.T.⁷ 

[1] Department of Biotechnology, Vietnam–Faculty of Chemistry, VNU University of Science, Vietnam National University, 19 Le Thanh Tong, Hoan Kiem, Hanoi, Vietnam;Graduate University of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam;Inorganic Chemistry Department, Peoples' Friendship University of Russia, 6 Miklukho-Maklay St., Moscow 117198, Russian Federation;Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam;Organic Chemistry Department, Peoples' Friendship University of Russia, 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation;Russia Tropical Centre, 58 Nguyen Van Huyen, Hanoi, Vietnam

关键词: CRYSTAL STRUCTURE;    MACROHETEROCYCLES;    CROWN ETHERS;    STACKING INTERACTIONS;   

DOI  :  10.1107/S2056989016020508

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

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.

【 授权许可】

CC BY