TY  - JOUR
A1  - Rivera, Augusto
A1  - Rojas, Jicli José
A1  - Ríos-Motta, Jaime
A1  - Bolte, Michael
T1  - Crystal structure of 1,2-bis(6-bromo-3,4-dihydro-2H-benz[e][1,3]oxazin-3-yl)ethane : a brominecontaining bis-benzoxazine
T2  - Acta crystallographica. Section E, Crystallographic communications
N2  - 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.
KW  - crystal structure
KW  - benzoxazines
KW  - phenolic resins
KW  - C—H⋯Br and C—H⋯O hydrogen bonds
Y1  - 2016
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/42879
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-428795
UR  - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5095852
SN  - 2056-9890
N1  - This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
VL  - 72
IS  - Pt 11
SP  - 1645
EP  - 1647
PB  - International Union of Crystallography
CY  - Chester
ER  -