钯催化无氧化剂烷烃脱氢制备烯烃研究  

Oxidant-free Dehydrogenation of Alkanes to Alkenes Catalyzed by Palladium

作　　者：杨娜 张晨阳 杨德骏 刘仁华[1] YANG Na;ZHANG Chen-yang;YANG De-jun;LIU Ren-hua(School of Pharmacy,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学药学院,上海200237

出　　处：《化学试剂》2020年第3期326-331,共6页Chemical Reagents

摘　　要：二苯乙烯类化合物是一类具有多种生物活性以及优良荧光性能的有机化合物,它们广泛存在于天然药物和食物中。目前文献所报道的合成二苯乙烯类化合物方法存在反应路线较长、反应条件苛刻、副产物多、反应收率低、底物范围窄等缺点。发展了一种Pd/C催化烷烃脱氢制备烯烃并释放氢气的方法。该反应体系不需要加入任何的氧化剂和氢接受体,即可高转化率、高选择性地将烷烃转化为烯烃并释放出氢气,反应过后Pd/C催化剂可以回收并循环使用。该反应体系条件温和、环境友好,符合以原子经济性为核心的绿色化学的发展要求。Stilbene compounds are an important class of organic compounds with various biological activities and excellent fluorescence properties,which are widely found in natural medicines and foods.The synthesis methods of stilbene compounds reported in the literature suffered from many disadvantages such as long reaction route,harsh reaction conditions,low selectivity,low reaction yields,and a narrow substrate range.In this work,a method for dehydrogenation of alkanes to produce olefins and to release hydrogen has been developed.The reaction was catalyzed by Pd/C without adding any oxidizing agents and hydrogen acceptors with high conversion and high selectivity,and hydrogen was only the by-product.After the reaction,the Pd/C catalyst can be recovered and recycled.The reaction system was mild and environmentally friendly,and met the development requirements of green chemistry with atomic economy as the core.

关 键 词：PD/C 二苯乙烯类化合物 脱氢 原子经济性 无氢接收体 

分 类 号：O625.12[理学—有机化学]