Ethyl N-piperazinecarboxylate synthesis
- Product Name:Ethyl N-piperazinecarboxylate
- CAS Number:120-43-4
- Molecular formula:C7H14N2O2
- Molecular Weight:158.2
Yield:120-43-4 98.5%
Reaction Conditions:
at 80; for 3 h;
Steps:
1
In the case of a rectification unit, A thermometer and a stirrer were charged 177.2 g of diethyl carbonate and 129.2 g of anhydrous piperazine;Stirring evenly, gradually warming to 80°C , constant temperature reaction 3h,The temperature of the distillate is controlled at about 60~70°C ,After the basic non-distillate is separated,Heating to 90°C ~ 100°C vacuum distillation to remove low boiling point by-products and impurities,A clear colorless product was obtained 233.8 g (actual yield 98.5%).
References:
Guangdong Boxing New Materials Technology Co., Ltd.;Pang Laixing;Li Zhiyun;Wu Chaojian;Wang Hui;Zeng Xianjian CN105037297, 2017, B Location in patent:Paragraph 0071-0074
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