One Pot Synthesis of Medicinally Important cis-2-Methyl-4-amino substituted-1,2,3,4-tetrahydroquinolines
作者:Kumar H. C. Kiran、K. M. Mahadevan、Varma P. Prabhakara、A. Srinivasa
DOI:10.1002/cjoc.201100180
日期:2012.3
A simple synthesis of medicinallyimportant cis‐2‐methyl‐4‐azapan‐2‐one‐1,2,3,4‐tetrahydroquinolines/cis‐9‐(2‐methyl‐1,2,3,4‐tetrahydroquinolin‐4‐yl)‐9H‐carbazole was reported. Multicomponent onepotsynthesis with anilines and N‐vinylcaprolactam/N‐vinyl carbazole via imino Diels‐Alder reaction by using antimony trichloride as catalyst and acetonitrile as solvent was employed. NMR technique (2D) was
Mild and Simple Access to Diverse 4-Amino-substituted 2-Phenyl-1,2,3,4-tetrahydroquinolines and 2-Phenylquinolines Based on a Multicomponent Imino Diels–Alder Reaction
作者:P. Prabhakara Varma、Bailure S. Sherigara、Kittappa M. Mahadevan、Vijaykumar Hulikal
DOI:10.1080/00397910903221035
日期:2010.7.12
A straightforward synthesis of new 1-(2-phenyl-1,2,3,4-tetrahydroquinolin-4-yl) pyrrolidin-2-ones/azepan-2-one from N-vinyl caprolactam/N-vinylpyrrolidin-2-one and N-benzylideneaniline via the imino Diels-Alder reaction has been reported for the first time. Antimony(III) chloride has been shown to effectively catalyze imino-Diels-Alder reaction to afford both 2-phenylquinoline and 2-phenyl-1,2,3,4-tetrahydroquinolin derivatives in excellent yields at ambient temperature. The cis diastereoselectivity to give cis 2-phenyl-1,2,3,4-tetrahydroquinolines is also highlighted in this reaction.