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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
ノート
印刷プレビュー

反応式

HRID 1929419 の反応式
[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
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 2

HCID 87949Lawesson's reagentHCID 24744336Apararenone

生成物 1

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

試薬・触媒・溶媒 2

HCID 6212Chloroform溶媒HCID 312751,4-Dioxane溶媒

実験手順

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.

後処理

  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)

出典と根拠

ORDレコード
ord-ecf3b49cf6f942cca0e04ef4a6606fad
出典データセット
uspto-grants-2012_05
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08188073B2

反応ノート

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