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Synthesis of 1,2-propanediamine via reductive amination of isopropanolamine over Raney Ni under the promotion of K2CO3

Qin-Wei Yu, Ya-Ni Li, Qian Zhang, Wei-Qiang Wang, Su-Ning Mei, Feng Hui, Jian Shi, Feng-Wei Zhao, Jian-Ming Yang, and Jian Lu

Xi’an Modern Chemistry Research Institute, Xi’an, China

 

E-mail: yangjm204@163.com

Abstract: Catalytic amination of isopropanolamine and ammonia to 1,2-propanediamine over Raney Ni with potassium carbonate as the additive was reported. Characterization of N2 adsorption–desorption and XRD were performed to reveal the textural and structural properties of the catalysts. With the additive of potassium carbonate, the selectivity of 1,2-propanediamine was improved, while the side generation of 2,5-dimethylpiperazine was suppressed. The catalytic reaction parameters were optimized and the yield of 1,2-propanediamine reached 80% under the optimized reaction condition.

Keywords: Isopropanolamine ; 1,2-Propanediamine ; Raney nickel ; Potassium carbonate ; Reductive amination 

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-019-00734-9

 

Chemical Papers 73 (8) 2019–2026 (2019)

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