Downstream synthetic route of 57260-71-6

57260-71-6 tert-Butyl piperazine-1-carboxylate 143452, apiperazines compound, is more and more widely used in various fields.

57260-71-6, tert-Butyl piperazine-1-carboxylate is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

2,2, 2-Trifluoroethyl trifluoromethanesulphonate (8.2 g) was added to a stirred mixture of 1-tert-butoxycarbonylpiperazine (6 g), potassium carbonate (5.77 g) and acetonitrile (30 ml) and the resultant mixture was stirred at ambient temperature for 16 hours. The mixture was filtered and the filtrate was evaporated. The residue was purified by column chromatography on silica using increasingly polar mixtures of petroleum ether (b. p 40-60C) and ethyl acetate as eluent. There was thus obtained tert-butyl 4- (2, 2, 2-trifluoroethylpiperazine-1-carboxylate as a solid (8.1 g); NMR Spectrum: (CDC13) 1.45 (s, 9H), 2.6 (m, 4H), 2.95 (q, 2H), 3.4 (m, 4H), 57260-71-6

57260-71-6 tert-Butyl piperazine-1-carboxylate 143452, apiperazines compound, is more and more widely used in various fields.

Reference:
Patent; ASTRAZENECA AB; ASTRAZENECA UK LIMITED; WO2004/41829; (2004); A1;,
Piperazine – Wikipedia
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