PIPERAZINE DIHYDROCHLORIDE synthesis
- Product Name:PIPERAZINE DIHYDROCHLORIDE
- CAS Number:142-64-3
- Molecular formula:C4H12Cl2N2
- Molecular Weight:159.06
Piperazine dihydrochloride was obtained by adding concentrated hydrochloric acid to an ethanolic solution of anhydrous piperazine: To an ethanolic solution of anhydrous piperazine (1 eq.) was slowly added concentrated hydrochloric acid (2 eq.) dropwise
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Yield:-
Reaction Conditions:
with hydrogenchloride in water at 20;Cooling with ice;
Steps:
1.3
100g of concentrated hydrochloric acid (12mol / L) into 250ml round-bottomed flask, under ice-cooling conditions, 40g of anhydrous piperazine was added slowly. After addition, the ice bath was removed, the reaction overnight at room temperature, suction filtered, the filter cake placed in an oven dried, the resulting white solid, a piperazine dihydrochloride.
References:
Xi'an Jiaotong University;Zhang, Jie;Lu, Wen;Dong, Jinyun;Pan, Xiaoyan;He, Langchong;Zhang, Tao;Wang, Sicen;Shen, Xiuxiu CN104262238, 2016, B Location in patent:Paragraph 0050; 0068; 0085; 0102; 0120
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