5788-58-9, 4,5-Dibromopyridazin-3(2H)-one is a pyridazine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
5788-58-9, EXAMPLE 6 4-Bromo-5-(3-n-pentyloxy-4-methoxybenzylamino)-3(2H)-pyridazinone (Compound No. 39) STR26 A mixture comprising 1.52 g of 4,5-dibromo-3(2H) pyridazinone, 4.01 g of 3-n-pentyloxy-4-methoxybenzylamine and 60 ml of ethanol was refluxed under stirring for 7.5 hours. Then, ethanol was distilled off under reduced pressure, and the residue thus obtained was extracted with ethyl acetate. The extract was sequentially washed with dilute hydrochloric acid and water, and dried over sodium sulfate. Then, the solvent was distilled off, and the residue thus obtained was crystallized from ethyl acetate-diethyl ether to obtain 1.42 g of the above identified compound as pale yellow crystals having a melting point of from 148 to 150 C. NMR(CDCl3)delta: 7.51 (1H, s), 6.82 (3H, s), 5.28 (1H, brs), 4.51, 4.41 (total 2H, each s), 3.97 (2H, t), 3.84 (3H, s), 2.05-1.05 (6H, m), 0.96 (3H, t) Mass (m/e): 395 (M+), 316 (100%), 207, 137
The synthetic route of 5788-58-9 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; Nissan Chemical Industries Ltd.; US4892947; (1990); A;,
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