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光照下非贵金属催化的1-辛烯转移加氢反应
Catalytic Transfer Hydrogenation of 1-Octene with Non-precious Metal under Irradiation
【摘要】 光照下,以甲醇为氢源,以NiCl2、Ni(OAc)2或CoCl2为催化剂,1-辛烯可以发生催化转移加氢反应,得到辛烷,主要副产物为双键异构的2-辛烯和3-辛烯。综合催化剂的加氢活性和产物辛烷的选择性,NiCl2的催化效果最好,且NiCl2的催化活性在293~333K范围内随温度升高而增加。以NiCl2为催化剂,在反应体系中添加三正丁胺,于293K下反应24h,辛烷的产率由45%提高到65%,选择性由57%提高到70%。
【Abstract】 The catalytic transfer hydrogenation of 1-octene to octane was carried out by using methanol as hydrogen donor and nickel and cobalt salts(such as NiCl2,Ni(OAc) 2 or CoCl2) as catalysts under irradiation.The major byproducts were 2-octene and 3-octene from isomerization of CC.Among these catalysts,NiCl2 was the most efficient in terms of octane yield and selectivity.Furthermore,the catalytic activity of NiCl2 increased at the elevated temperature(293~333K).It was beneficial to the hydrogenation and restrained the side-reaction by adding tri-n-butylamine into reactive system,the yield of octane was increased from 45% to 65% and the selectivity of octane improved from 57% to 70% with NiCl2 as catalyst at 293K after 24h.
【Key words】 Irradiation; Catalytic transfer hydrogenation; 1-Octene; Nickel salts; Tri-n-butylamine;
- 【文献出处】 化学通报 ,Chemistry , 编辑部邮箱 ,2009年11期
- 【分类号】O621.251
- 【被引频次】4
- 【下载频次】130