Molecular iodine-catalyzed and air-mediated tandem synthesis of quinolines via three-component reaction of amines, aldehydes, and alkynes
作者:Xuejian Li、Zhenjun Mao、Yanguang Wang、Weixiang Chen、Xufeng Lin
DOI:10.1016/j.tet.2011.03.087
日期:2011.5
A one-pot synthesis of quinolines via molecular iodine-catalyzed and air-mediated tandem condensation/imino-Diels–Alder/isomerization/oxidation of simple readily available amines, aldehydes, and alkynes has been developed. This methodology was extended to synthesize quinazolines from two molecules of amines and two molecules of glyoxalates.
Oxidative Povarov Reaction via sp<sup>3</sup> C–H Oxidation of <i>N</i>-Benzylanilines Induced by Catalytic Radical Cation Salt: Synthesis of 2,4-Diarylquinoline Derivatives
Oxidative Povarov reaction of N-benzylanilines was realized under catalytic radical cation salt induced conditions. The mechanism studies revealed that a radical intermediate was involved in this catalytic oxidation. This method provides a new way to synthesize 2,4-diarylquinoline derivatives.
Photosensitized Diels–Alder reactions of N-arylimines: synthesis of tetrahydroquinoline derivatives
作者:Wei Zhang、Xiaodong Jia、Li Yang、Zhong-Li Liu
DOI:10.1016/s0040-4039(02)02328-6
日期:2002.12
Irradiation (lambda>345 nm) of catalytic amounts of 2,4,6-triphenylpyrylium tetrafluoroborate (TPT) in a CH2Cl2 solution of N-aryl imines and alpha-methyl styrene or styrene produced the corresponding [4+2] cycloaddition products, tetrahydroquinoline derivatives, in good yield. The reaction was controlled by the relative oxidation potentials of the dienophile and the diene. (C) 2002 Elsevier Science Ltd. All rights reserved.
MIYAJIMA SHINGO; ITO KUNIO; KASHIWAGURA ISAO; KITAMURA CHOJI, NIXON KAGAKU KAJSI, NIRRON KAGAKU KAISNI, J. CHEM. SOS. JAR., CHEM. AND I+
作者:MIYAJIMA SHINGO、 ITO KUNIO、 KASHIWAGURA ISAO、 KITAMURA CHOJI
DOI:——
日期:——
Synthesis of Aryl-substituted Quinoline Derivatives via Brønsted Acid-catalyzed [4+2] Aza Diels–Alder Reaction
CF3SO3H-catalyzed [4+2] aza Diels–Alder reaction of aldimines with silyl enol ethers, and subsequent in situ oxidation furnished quinoline derivatives in good to excellent yields, wherein use of CF3SO3H as a Brønsted acid is critical for the cyclization reaction.