반응 #712372

ord-a533803d55584ada89bfccb35e71d4e0

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타Into a glass flask equipped with a thermometer
  2. 2
    기타obtained
  3. 3
    기타Thereafter, the reaction liquid
  4. 4
    추출was extracted with 30 mL of dichloromethane three times
  5. 5
    세척the resultant organic layer was washed with 100 mL of water six times
  6. 6
    workup.DISTILLATIONDistillation of dichloromethane in vacuo

실험 절차

Into a glass flask equipped with a thermometer and a capacitor were charged the aqueous solution of sodium 2-(2,4-bis(methoxycarbonyl)cyclopentyl)-1,1,2,2-tetrafluoroethanesulfonate obtained as described above, and 1.31 g (4.38 mmol) of triphenylsulfonium chloride, and the mixture was stirred at room temperature for 6 hrs. Thereafter, the reaction liquid was extracted with 30 mL of dichloromethane three times, and the resultant organic layer was washed with 100 mL of water six times. Distillation of dichloromethane in vacuo gave 1.51 g of triphenylsulfonium 2-(2,4-bis(methoxycarbonyl)cyclopentyl)-1,1,2,2-tetrafluoroethanesulfonate (compound (A-1)) represented by the following formula (A-1).

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US09304393B2uspto-grants-2016_04