Tang Jie
2012
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Journal
Chinese Journal of Synthetic Chemistry
Abstract
3-Aryl substituted quinolines in yields of 51%~74% were sythesized by "one-pot" method using trifluoromethanesulfonic acid(TfOH,5 mol%) as the catalyst in chlorobenzene from chalcone epoxide(1) by ring-opening-rearrangement reaction,then by Meinwald-Friedlnder reaction with o-aminobenzaldehyde in the presence of KOBut.3-Oxo-2,3-diarylpropionaldehydes in yields of 48%~89% were prepared by Meinwald rearrangement reaction of 1 using TfOH(5 mol%) as the catalyst in methylene chloride.The structures were confirmed by NMR and MS.