3,3-Dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one → 2-anilino-7-chloro-6-fluoro-1-phenyl-1,8-naphthyridin-4(1H)-one

HRID 1063528ノート

反応式

HRID 1063528 の反応式
[NH:1]([C:8]([NH:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)=[CH:9][C:10]([C:12]1[C:13](Cl)=[N:14][C:15]([Cl:19])=[C:16]([F:18])[CH:17]=1)=[O:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.CC([O-])(C)C.[K+]>O1CCOCC1>[NH:1]([C:8]1[N:21]([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:13]2[C:12]([C:10](=[O:11])[CH:9]=1)=[CH:17][C:16]([F:18])=[C:15]([Cl:19])[N:14]=2)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

4

反応物 2

HCID 219481383,3-Dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-oneHCID 23665647Potassium tert-butoxide

生成物 1

HCID 219481862-anilino-7-chloro-6-fluoro-1-phenyl-1,8-naphthyridin-4(1H)-one収率 50%

試薬・触媒・溶媒 1

HCID 312751,4-Dioxane溶媒

反応条件

温度
80 °C

実験手順

A mixture of 3,3-dianilino-1-(2,6-dichloro-5-fluoro-3-pyridinyl)-2-propen-1-one (2.3 g, 5.7 mmol) and t-BuOK (1.28 g, 11.4 mmol) in dioxane (80 mL) was stirred at 80° C. overnight. The reaction was cooled, concentrated in vacuo, diluted with water and extracted with EtOAc. The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated in vacuo. Silica gel flash chromatography of the residue provided 2-anilino-7-chloro-6-fluoro-1-phenyl-1,8-naphthyridin-4(1H)-one (1.0 g, 50%) as a light yellow solid: LCMS RT: 2.60 min, MH+: 366.8. This transformation can be accomplished by using the combination of other aprotic solvents such as DMF, and THF with other bases such as NaH.

後処理

  1. temperatureThe reaction was cooled
  2. concentrationconcentrated in vacuo
  3. additiondiluted with water
  4. extractionextracted with EtOAc
  5. washThe combined organic extracts were washed with brine
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated in vacuo

出典と根拠

ORDレコード
ord-aebfa23b59cb4e09af0d2fda805489c1
出典データセット
uspto-grants-2005_11
特許番号
US06964971B2

反応ノート

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