Proline triflate catalysed Diels–Alder reaction in the synthesis of tetrahydroquinoline derivatives
作者:Jianjun Li、Jia Li、Weike Su
DOI:10.3184/030823409x12474221035082
日期:2009.8
Proline triflate was found to catalyse efficiently the one-pot synthesis of 2H-pyranotetrahydroquinolines from aryl imines, and 3,4-dihydro-2H-pyran with high stereoselectivity. The aryl imines were formed in situ from aromatic amines and arylaldehydes.
A Facile and Convenient Three-component Coupling Protocol for the Synthesis of Pyrano and Furoquinolines
作者:N. Ravindranath、C. Ramesh、M. Ravinder Reddy、Biswanath Das
DOI:10.1246/cl.2003.222
日期:2003.3
Ceric ammonium nitrate (CAN) catalyzes efficiently the coupling of anilines, benzaldehydes and 3,4-dihydro-2H-pyran or 2,3-dihydrofuran to form the corresponding pyrano or furoquinolines in short reaction times and in high yields.
Imino Diels–Alder reactions: One-pot synthesis of tetrahydroquinolines
作者:Vinod T. Kamble、Bhaskar S. Davane、Sanjay A. Chavan、Dnyanoba B. Muley、Sandeep T. Atkore
DOI:10.1016/j.cclet.2009.11.016
日期:2010.3
Abstract An efficientsynthesis of tetrahydroquinoline derivatives is reported via three component coupling reactions of aldehydes and anilines with various dienophiles in the presence of a catalytic amount of perchloric acid adsorbed on silica gel (HClO 4 –SiO 2 ) under mild reaction conditions.
Molecular Iodine-Catalyzed Imino-Diels-Alder Reactions: Efficient One-Pot Synthesis of Pyrano[3,2-<i>c</i>]quinolines
作者:Min Xia、Yue-dong Lu
DOI:10.1055/s-2005-872676
日期:——
The successful use of molecular iodine as a catalyst in the intermolecular imino-Diels-Alderreaction is described. A one-pot synthesis of pyrano[3,2-c]quinolines was achieved by three-component coupling of aldehydes and anilines with 2,3-dihydropyran catalyzed by iodine. The reactions could be carried out smoothly at room temperature within three to six hours to offer the target products in good yields