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Lawesson's reagent → N-[4-(4-fluorophenyl)-2,2-dimethyl-3-thioxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methanesulfonamide

HRID 1929419
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HRID 1929419 반응식
[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13]3[CH:14]=[CH:15][C:16]([NH:18][S:19]([CH3:22])(=[O:21])=[O:20])=[CH:17][C:12]=3[O:11][C:10]([CH3:24])([CH3:23])[C:9]2=O)=[CH:4][CH:3]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:35])=CC=1>O1CCOCC1.C(Cl)(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:13]3[CH:14]=[CH:15][C:16]([NH:18][S:19]([CH3:22])(=[O:21])=[O:20])=[CH:17][C:12]=3[O:11][C:10]([CH3:24])([CH3:23])[C:9]2=[S:35])=[CH:4][CH:3]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 2

HCID 87949Lawesson's reagentHCID 24744336Apararenone

생성물 1

HCID 25217937N-[4-(4-fluorophenyl)-2,2-dimethyl-3-thioxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methanesulfonamide수율 13.2%

시약·촉매·용매 2

HCID 6212Chloroform용매HCID 312751,4-Dioxane용매

실험 절차

To a suspension of N-[4-(4-fluorophenyl)-2,2-dimethyl-3-oxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methanesulfonamide (compound of Example 9, 182 mg) in dioxane (10 mL) was added Lawesson's reagent (202 mg), and the mixture was stirred at room temperature for 2 hours and then stirred at 40° C. for 24 hours. The reaction mixture was diluted with chloroform and the mixture was filtered through a NH-silica gel pad and washed with ethyl acetate. The filtrate and the washings were combined and concentrated in vacuo. The resultant residue was purified by column chromatography on silica gel (solvent; n-hexane/ethyl acetate=19/1→3/2) to give N-[4-(4-fluorophenyl)-2,2-dimethyl-3-thioxo-3,4-dihydro-2H-1,4-benzoxazin-7-yl]methanesulfonamide (25 mg) as a yellow powder.

후처리

  1. stirringstirred at 40° C. for 24 hours
  2. filtrationthe mixture was filtered through a NH-silica gel pad
  3. washwashed with ethyl acetate
  4. concentrationconcentrated in vacuo
  5. customThe resultant residue was purified by column chromatography on silica gel (solvent; n-hexane/ethyl acetate=19/1→3/2)

출처 및 근거

ORD 기록
ord-ecf3b49cf6f942cca0e04ef4a6606fad
출처 데이터셋
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08188073B2

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