Process for producing N-methyl or N,N-dimethyl amines | |
Shi F(石峰); Cui XJ(崔新江); Yuan HK(袁航空); Zhang Y(张妍); Deng YQ(邓友全) | |
2017-06-27 | |
Rights Holder | Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences |
Date Available | 2015-01-15 |
Country | 中国 |
Abstract | A process for producing N-methyl or N,N-dimethyl amines, which comprises using amine compound, nitro-containing compound or nitrile compound as a starting material, carbon dioxide as a methylating agent and hydrogen gas as a reducing agent, and allowing them to react in a sealed reactor for 6 to 48 h in a reaction medium at a reaction temperature of 80 to 180 ° C. in the presence of a composite catalyst, so as to provide N-methyl or N,N-dimethyl amines. The process of the present invention is simple and under relative mild reaction conditions. By means of the process of the invention, the target products can be prepared at low cost with a high yield. The catalysts used have a high catalytic activity and can be separated from the reaction system simply and reused. Furthermore, the whole process of the present invention is environmental-friendly and facilitates the cycling use of carbon dioxide. |
Subject Area | 物理化学与绿色催化 |
Department | OSSO国家重点实验室 |
Application Date | 2013-09-27 |
Patent Number | US 9,688,646 B2 |
Language | 英语 |
Status | 授权 |
Document Type | 专利 |
Identifier | http://ir.licp.cn/handle/362003/22955 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Affiliation | Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences |
Recommended Citation GB/T 7714 | Shi F,Cui XJ,Yuan HK,et al. Process for producing N-methyl or N,N-dimethyl amines. US 9,688,646 B2[P]. 2017-06-27. |
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US9688646.pdf(784KB) | 专利 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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