Synthesis and crystal structure of allyl 7-(di-ethyl-amino)-2-oxo-2H-chromene-3-carboxyl-ate.
作者： Christian Näther , Ulrich Lüning , Vanessa Nowatschin
DOI: 10.1107/S2056989021002218
关键词: Crystallography 、 Phase (matter) 、 Allyl bromide 、 Crystal structure 、 Silica gel 、 Recrystallization (geology) 、 Chemistry 、 Column chromatography 、 Powder diffraction 、 Acetone
摘要: The title compound, C17H19NO4, was synthesized by the reaction of 7-(diethylamino)-2-oxo-2H-chromene-3-carboxylic acid with allyl bromide and purified flash column chromatography on silica gel. Crystals suitable for single-crystal X-ray diffraction were obtained recrystallization from acetone. aromatic core molecule is not planar diethylamino group carboxyl that are rotated out 2-oxo-2H-chromene plane 6.7 (2)° 11.4 (2)°. NC2 unit an angle sum close to 360°. Intermolecular Car—H⋯Ocarbonyl interactions lead formation chains parallel b axis. powder analysis proves compound as a pure phase.
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