Potassium Carbonate → 1-Methyl-4-(3-nitrobenzyl)piperazine

関与物質

反応手順

A mixture of 3-nitrobenzylchloride (5 g, 29.14 mmol), N-methylpiperazine (3.9 mL, 34.97 mmol, 1.2 equiv), potassium carbonate (8 g, 58.28, 2 equiv), and acetone (100 ml) is stirred for 15 h at reflux. The reaction mixture is allowed to cool to RT, filtered and concentrated. The residue is purified by silica gel MPLC (DCM/MeOH+1% NH3aq, 95:5) to afford the title compound as a brow oil: ESI-MS: 236.0 [MH]+; tR=1.40 min (purity: 100%, system 1); TLC: Rf=0.31 (DCM/MeOH+1% NH3aq, 9:1).

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