53788-49-1, tert-Butyl 4-methylpiperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
53788-49-1, (2) Tert-butyl 4-(4-chloropyrimidin-2-yl)piperazine-1-carboxylate A mixture of 4-methyltert-butyl piperazine-1-carboxylate (2.0 g, 9.98 mmol), 2,4-dichloropyrimidine (1.49 g, 9.98 mmol) and toluene (20 ml) was stirred at 110 C. overnight. The reaction was poured into water and extracted with ethyl acetate. The extract was washed with water, dried over anhydrous magnesium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate_hexane=1:1) to obtain the title compound (1.83 g, 62%) as a solid. 1H NMR (CDCl3) delta: 1.49 (9H, s), 3.44-3.53 (4H, m), 3.75-3.84 (4H, m), 6.53 (1H, d, J=5.1 Hz), 8.16 (1H, d, J=5.1 Hz).
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Reference£º
Patent; TAKEDA PHARMACEUTICAL COMPANY LIMITED; US2009/163508; (2009); A1;,
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