固体超强碱Na_2CO_3/γ-Al_2O_3催化合成肉桂醛的研究  

Synthesis of Cinnamaldehyde Catalyzed by Solid Superbase Na_2CO_3 /γ-Al_2O_3

作　　者：陈露[1] 王宜望 罗金岳[1,2] 

机构地区：[1]南京林业大学化学工程学院,江苏南京210037 [2]江苏省生物质绿色燃料与化学品重点实验室,江苏南京210037

出　　处：《林产化学与工业》2013年第6期91-94,共4页Chemistry and Industry of Forest Products

基　　金：广西高校人才小高地科研基金资助项目(无编号);江苏高校优势学科建设工程资助项目(无编号)

摘　　要：以苯甲醛为原料,在催化剂作用下与乙醛通过羟醛缩合反应生成肉桂醛,探讨了催化剂催化反应的工艺条件,并采用了GC-MS、IR和1H NMR等手段对产物进行表征。实验结果表明:在使用Na2CO3/γ-Al2O3作为催化剂,11.60 g 40%乙醛,n(苯甲醛)∶n(乙醛)为1.3∶1,反应温度30℃、反应时间1 h、催化剂用量1 g,肉桂醛得率可达40.9%。Benzaldehyde is used as a raw material,to synthesize cinnamaldehyde from acetaldehyde in catalysis by aldol condensation reaction.The conditions of the catalytic reaction were discussed.The product was characterized by GC-MS,IR and 1H NMR.The results show that：When the catalyst is Na2CO3/γ-Al2O3,the molar proportion of benzaldehyde and acetaldehyde is 1.3 ∶ 1,the reaction temperature is 30 ℃,reaction time is 1 h,the amount of catalyst is 1 g （according to 11.6 g 40％acetaldehyde）,the yield of cinnamaldehyde reaches 40.9 ％.

关 键 词：肉桂醛 NA2CO3 Γ-AL2O3 苯甲醛 合成 

分 类 号：TQ35[化学工程]