반응 #5214

ord-715795a169ab49eca88ae924fb7a34b7

용매

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    농축At the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure
  2. 2
    기타to leave a residue, which
  3. 3
    기타was purified by column chromatography through silica gel
  4. 4
    세척eluted with a 10:1 by volume mixture of ethyl acetate and methanol

실험 절차

20 ml of trifluoroacetic acid and 0.41 ml of trifluoromethanesulfonic acid were added, whilst ice-cooling, to a solution of 949 mg of 3-(4-methoxybenzylthio)pyrrolidin-2-one in 4 ml of anisole, and then the mixture was stirred at room temperature for 30 minutes. At the end of this time, the reaction mixture was concentrated by evaporation under reduced pressure to leave a residue, which was purified by column chromatography through silica gel, eluted with a 10:1 by volume mixture of ethyl acetate and methanol, to give 728 mg of the title compound as an oil.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US05242914uspto-grants-1993_09