Catalytic Hydrogenation of Diacetyl Monoxime to Tetramethylpyrazine with the Soluble Transition Metal Catalysts
Catalytic Hydrogenation of Diacetyl Monoxime to Tetramethylpyrazine with the Soluble Transition Metal Catalysts作者机构:Institute of Catalysis Zhejiang University (Xixi Campus) Hangzhou 310028 China Department of Chemistry Zhengzhou University Zhengzhou 450052 China
出 版 物:《Chinese Chemical Letters》 (中国化学快报(英文版))
年 卷 期:1999年第10卷第8期
页 面:701-704页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
主 题:diacetyl monoxime catalytic hydrogenation tetramethylpyrazine
摘 要:Catalytic hydrogenation of diacetyl monoxime to tetramethylpyrazine, by the homogeneous catalysts generated in situ from some transition metal chlorides with triphenylphosphine in ethanol under H-2 pressure of 0.6 similar to 4.6 MPa at 100 similar to 150 degrees C, has been studied. The optimum H-2 partial pressure was observed at about 1.3 MPa. The maximum conversion of diacetyl monoxime and yield of tetramethylpyrazine were 97% and 90%, respectively.