A common heterocyclic compound, the copper-catalyst compound, name is Copper(I) bromide,cas is 7787-70-4, mainly used in chemical industry, its synthesis route is as follows.,7787-70-4
Copper bromide (2.223 g, 10.00 mmols) was added to 2-pyridone (1.936 g, 20.38 mmols) dissolved in 10 mL THF, 3 mL of water, and 0.859 g (10.6 mmol) concentrated HBr (?9 M). Dark crystals formed in solution after one week. The product was isolated by vacuum filtration, washed with cold THF, and air-dried to yield 3.41 g (82%) of brown crystals. Single crystals (brown prisms) were obtained by recrystallization in THF/water (10:3). IR (KBr): 3241m, 3150m, 3082m, 2936m (nu N-H), 1638s/1621s (C=O) 1586s, 1536s, 1466m, 1374s, 1277m, 1216m, 1156m, 1091m, 997m, 859m, 775s, 718m, 593m, 539m, 511m cm-1. Anal. Calc. for C20H20N4O4Cu2Br4: C, 29.04; H, 2.44; N, 6.77. Found: C, 28.79; H, 1.76; N, 6.60%.
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Reference£º
Article; Shortsleeves, Kelley C.; Turnbull, Mark M.; Seith, Christopher B.; Tripodakis, Emilia N.; Xiao, Fan; Landee, Christopher P.; Dawe, Louise N.; Garrett, David; De Delgado, Graciela Diaz; Foxman, Bruce M.; Polyhedron; vol. 64; (2013); p. 110 – 121;,
Copper catalysis in organic synthesis – NCBI
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”