• 제목/요약/키워드: Triflates

검색결과 5건 처리시간 0.018초

Rhodium-Catalyzed Highly Regioselective C-H Arylation of Imidazo[1,2-a]pyridines with Aryl Halides and Triflates

  • Liu, Yi;He, Lin;Yin, Guoqiang;Wu, Guojie;Cui, Yingde
    • Bulletin of the Korean Chemical Society
    • /
    • 제34권8호
    • /
    • pp.2340-2342
    • /
    • 2013
  • A convenient Rh-catalyzed C-H arylation of imidazo[1,2-a]pyridines with a variety of aryl halides or triflates has been reported. This process afforded a range of biaryl compounds in excellent yields and showed high activity and broad scope.

A Systematic Study on Knoevenagel Reaction and Nazarov Cyclization of Less Reactive Carbonyl Compounds Using Rare Earth Triflates and Its Applications

  • Ilangovan, A.;Muralidharan, S.;Maruthamuthu, S.
    • 대한화학회지
    • /
    • 제55권6호
    • /
    • pp.1000-1006
    • /
    • 2011
  • A systematic study of Knoevenagel reaction and Nazarov cyclization was made on variety of less reactive carbonyl compounds such as ${\beta}$-ketoesters, 1,3-diketones and cyclic active methylene compounds using $Yb(OTf)_3$ as the catalyst. Recycling study confirms reusability of the catalyst without much loss of activity.