Lewis acid assisted reactions of<i>N</i>-(α- aminoalkyl)benzotriazoles and unactivated alkenes for the facile synthesis of 4-, 2,4-, and 3,4-substituted 1,2,3,4-tetrahydroquinolines
作者:Alan R. Katritzky、Daniel A. Nichols、Ming Qi、Baozhen Yang
DOI:10.1002/jhet.5570340428
日期:1997.7
A range of substituted tetrahydroquinolines have been synthesized from benzotriazole derivatives and unactivatedalkenes in the presence of a Lewisacid. These reactions utilize readily available starting materials and mild reaction conditions, and give high yields. The reaction mechanisms are discussed.
Practical One‐Pot Procedure for the Synthesis of 1,2,3,4‐Tetrahydroquinolines by the Imino‐Diels‐Alder Reaction
作者:Christoph M. Dehnhardt、Yomery Espinal、Aranapkam M. Venkatesan
DOI:10.1080/00397910701820988
日期:2008.2.13
Abstract A novel‐one‐pot procedure for the synthesis of tetrahydroquinolines via the imino‐Diels‐Alder reaction is described. This procedure gives better yields and exhibits better versatility for alkene substrates than the existing hemi‐aminal based methodologies.
ONE-POT SYNTHESIS OF TETRAHYDROQUINOLINES CATALYZED BY Dy(OTf)<sub>3</sub>IN AQUEOUS SOLUTION
作者:Ruifang Chen、Changtao Qian
DOI:10.1081/scc-120005937
日期:2002.1
Various 4-substituted-1-methyltetrahydroquinolines are easily accessible from the one-pot condensation reaction of N-methylaniline with commercial formaldehyde solution and electron-rich alkenes in the presence of Dy(OTf)(3) (1 mol %) under mild conditions at ambient temperature and in the absence of any organic solvents.
Electroorganic chemistry. 62. Reaction of iminium ion with nucleophile: a versatile synthesis of tetrahydroquinolines and julolidines