반응 #2252220

ord-a308812a977b490380459d687466991a

반응 조건

온도
30°CELSIUS
상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타obtained in the aforesaid step
  2. 2
    workup.ADDITIONthe reaction mixture was poured onto ice water
  3. 3
    추출extracted with 150 ml of ethyl acetate
  4. 4
    세척The ethyl acetate layer was washed thrice with cold water
  5. 5
    건조dried over Glauber's salt
  6. 6
    여과After filtrating away the Glauber's salt
  7. 7
    농축the residue was concentrated to dryness

실험 절차

To 2 g (0.016 mol) of sodium sulfite and 2.4 g (0.029 mol) of sodium hydrogen carbonate were added 100 ml of water and 20 ml of acetonitrile and the mixture was stirred at 30° C. To the mixture was added dropwise a solution of 10.5 g (0.013 mol) of 3,5-di-(2,4-di-tert-amylphenoxypropylcarbamoyl)benzenesulfonyl chloride obtained in the aforesaid step dissolved in 100 ml of acetonitrile. After stirring the resultant mixture for one hour, the reaction mixture was poured onto ice water and extracted with 150 ml of ethyl acetate. The ethyl acetate layer was washed thrice with cold water and dried over Glauber's salt. After filtrating away the Glauber's salt, the residue was concentrated to dryness to provide 8.6 g (yield of 82.8%) of a solid product.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US04939072uspto-grants-1990_07