59702-07-7, 1-Methylpiperazin-2-one is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
59702-07-7, A mixture of 1-methylpiperazin-2-one (183 g, 1.6 mol) and diethyl ethoxymethylenemalonate (346 g, 1.6 mol) in toluene (12 L) was heated at 100 ¡ãC overnight. The resultant mixture was concentrated under vacuum. The residue was dissolved in anhydrous THF (8 L), brought to reflux under an atmosphere of nitrogen, and treated with a solution of lithium bis (trimethylsilyl)amide in THF (1 M, 1.05 eq). The reaction mixture was allowed to cool to room temperature and concentrated under vacuum. The residue was partitioned between methylene chloride and dilute aqueous HCI. The organic extract was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated under vacuum. The residue was triturated with ethyl acetate, cooled to -20 ¡ãC, and the solid precipitated was filtered to provide the title compound. 1H NMR (400 MHz, DMSO-d6) 8 8.50 (s, 1H), 7.33 (s, 1H), 4.18 (q, J = 7.1 Hz, 2H), 4.11 (t, J = 5.5 Hz, 2H), 3.59 (t, J = 5.5 Hz, 2H), 2.92 (s, 3H), 1.24 (t, J = 7.1 Hz, 3H). ES MS M+l = 239
The synthetic route of 59702-07-7 has been constantly updated, and we look forward to future research findings.
Reference£º
Patent; MERCK & CO., INC.; WO2005/110414; (2005); A2;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics