5625-67-2, Piperazin-2-one is a piperazines compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
4) Preparation of benzyl 3-oxopiperazine-1-carboxylate 1.4; 10 g of piperazin-2-one and 90 g of sodium carbonate were dissolved in 250 ml of water; 500 ml of ethyl acetate were added to this solution, and 20.45 g of benzyl chloroformate were added dropwise with vigorous stirring. After the addition had ended, the mixture was stirred at room temperature overnight. For workup, the organic phase was removed, dried over magnesium sulfate, filtered and concentrated under reduced pressure. This afforded benzyl 3-oxopiperazine-1-carboxylate 1.4. Molecular weight 234.10 (C12H14N2O3); retention time Rt=1.18 min. [B]; MS (ESI): 235.11 (MH+)., 5625-67-2
As the paragraph descriping shows that 5625-67-2 is playing an increasingly important role.
Reference：
Patent; SANOFI-AVENTIS; US2011/46105; (2011); A1;,
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