Citation: Xiang Yu WANG, Xiao Ming ZHENG, Zhao Yin HOU. Catalytic Hydrogenation of Diacetyl Monoxime to Tetramethylpyrazine with the Soluble Transition Metal Catalysts[J]. Chinese Chemical Letters, ;1999, 10(8): 701-704. shu

Catalytic Hydrogenation of Diacetyl Monoxime to Tetramethylpyrazine with the Soluble Transition Metal Catalysts

Institute of Catalysis, Zhejiang University(Xixi campus), Hangzhou 310028;
2.
Department of Chemistry, Zhengzhou University, Zhengzhou 450052

Received Date: 21 March 1999

Fund Project: This work is supported by the foundation of Educational Committee of Zhejiang Province China. The authors thanks Dr. Song Lin ZHANG for his kind help.

Catalytic hydrogenation of diacetyl monoxime to tetramethylpyrazine, by the homogeneous catalysts generated in situ from some transition metal chlorides with triphenylphosphine in ethanol under H₂ pressure of 0.6~4.6 MPa at 100~150℃, has been studied. The optimum H₂ partial pressure was observed at about 1.3 MPa. The maximum conversion of diacetyl monoxime and yield of tetramethylpyrazine were 97% and 90%, respectively.
- Diacetyl monoxime,
- catalytic hydrogenation,
- tetramethylpyrazine
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