Synthesis of Spiro Dihydrofurans and 1,8-Dioxo-xanthenes via DABCO Catalyzed Tandem Reaction of Aldehyde with Cyclohexane-1,3-dione and Dimedone  

作　　者：CHEN Jiao SHI Jian YAN Chao-guo 

机构地区：[1]College of Chemistry ＆ Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China

出　　处：《Chemical Research in Chinese Universities》2011年第1期49-53,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No20972132)

摘　　要：The 1,4-diazabicyclo[2.2.2]octane（DABCO） catalyzed reaction of cyclohexane-1,3-dione or dimedone with various aldehydes in acetonitrile resulted in the polysubstituted tetraketones, spiro dihydrofurans or 1,8-dioxo-xanthenes derivatives as main products respectively according to the structure of reactants and reaction conditions.The 1,4-diazabicyclo[2.2.2]octane（DABCO） catalyzed reaction of cyclohexane-1,3-dione or dimedone with various aldehydes in acetonitrile resulted in the polysubstituted tetraketones, spiro dihydrofurans or 1,8-dioxo-xanthenes derivatives as main products respectively according to the structure of reactants and reaction conditions.

关 键 词：Tandem reaction DIMEDONE Spiro dihydrofuran Tetraketone 1 8-Dioxo-xanthene 

分 类 号：O643.32[理学—物理化学] TQ426[理学—化学]