Crystal structure of 1,2-bis­(6-bromo-3,4-dihydro-2H-benz[e][1,3]oxazin-3-yl)ethane: a bromine-containing bis-benzoxazine

Acta Crystallographica Section E: Crystallographic Communications

os-Motta, J.¹  Rojas, J.J.'²  Rivera, A.⁴  Bolte, M.⁵  Rí⁶ 

[1] , Có, Facultad de Ciencias, Departamento de QuíInstitut füUniversidad Nacional de Colombia, Sede Bogotádigo Postal 110911, Colombia;mica, Cra 30 No. 45-03, Bogotár Anorganische Chemie, J. W. Goethe-Universität Frankfurt, Max-von Laue-Str., 7, 60438 Frankfurt/Main, Germany

关键词: CRYSTAL STRUCTURE;    BENZOXAZINES;    PHENOLIC RESINS;    C-H...BR AND C-H...O HYDROGEN BONDS;   

DOI  :  10.1107/S2056989016016509

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The title benzoxazine molecule, C18H18Br2N2O2, was prepared by a Mannich-type reaction of 4-bromo­phenol with ethane-1,2-di­amine and formaldehyde. The title compound crystallizes in the monoclinic space group C2/c with a centre of inversion located at the mid-point of the C—C bond of the central CH2CH2 spacer. The oxazinic ring adopts a half-chair conformation. The structure is compared to those of other functionalized benzoxazines synthesized in our laboratory. In the crystal, weak C—H⋯Br and C—H⋯O hydrogen bonds stack the mol­ecules along the b-axis direction.

【 授权许可】

CC BY