Lewis acid catalyzed reactivity switch: pseudo three-component annulation of nitrosoarenes and (epoxy)styrenes
作者:Anisha Purkait、Subhajit Saha、Santanu Ghosh、Chandan K. Jana
DOI:10.1039/d0cc02650f
日期:——
Lewis acid catalyzed alteration of annulation pattern allowed formation of arylquinolines via C–H functionalization of nitrosoarenes and C–C cleavage of (epoxy)styrene.
Microwave-assisted multicomponent domino cyclization–aromatization: an efficient approach for the synthesis of substituted quinolines
作者:Aditya Kulkarni、Béla Török
DOI:10.1039/c001076f
日期:——
microwave-assisted synthesis of substituted quinolines is described. The quinolines were synthesized by a multicomponent domino reaction of anilines, aldehydes and terminal aryl alkynes. The synthetic pathway involves the formation of an imine, followed by the intermolecular addition of an alkyne to the imine. This intermediate immediately undergoes ring closure and oxidative aromatization. The reaction is catalyzed
Synthesis of Quinoline Derivatives by Multicomponent Reaction Using Niobium Pentachloride as Lewis Acid
作者:Aloisio de Andrade、Giovanny Carvalho dos Santos、Luiz Carlos da Silva-Filho
DOI:10.1002/jhet.1980
日期:2015.1
to investigate the use of NbCl5 as a Lewisacid in multicomponentreactions between benzaldehyde, aniline derivatives and phenylacetylene in the synthesis of quinolinederivatives. The effects of the temperature and substituents in the aromatic ring of the aniline were also evaluated. The reactions were carried out at low concentration of niobium and in relatively short reaction times, resulting in
A Green, Solvent-Free One-Pot Synthesis of Disubstituted Quinolines via A3-Coupling Using 1 Mol% FeCl3
作者:Vineet Jeena、Shivani Naidoo
DOI:10.3987/com-15-13391
日期:——
A simple and green route towards disubstituted quinolines via A(3)-coupling using 1 mol% FeCl3 is described. Using this approach, the above-mentioned derivatives were synthesized in moderate to good yields (45-95%) under solvent-free, microwave conditions. Preliminary investigations have indicated that a further decrease in catalyst amount is possible with a satisfactory yield still observed.