Methyl iodide → 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

HRID 82623

反応式

HRID 82623 の反応式
[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([N:15]2[C:19]3=[N:20][CH:21]=[C:22](Cl)[CH:23]=[C:18]3[N:17]([CH2:25][CH3:26])[C:16]2=[O:27])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(P(C(C)(C)C)C1C(C)=C(C)C(C)=C(C)C=1C1C(C(C)C)=CC(C(C)C)=CC=1C(C)C)(C)(C)C.[OH-:62].[K+].I[CH3:65]>O1CCOCC1.O.[Br-].C([N+](C)(C)C)CCCCCCCCCCCCCCC.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][C:12]([N:15]2[C:19]3=[N:20][CH:21]=[C:22]([O:62][CH3:65])[CH:23]=[C:18]3[N:17]([CH2:25][CH3:26])[C:16]2=[O:27])=[CH:11][CH:10]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

9

反応物 4

HCID 6328Methyl iodide2 回HCID 14797Potassium HydroxideHCID 11953610Di-tert-butyl[3,4,5,6-tetramethyl-2',4',6'-tris(propan-2-yl)-[1,1'-biphenyl]-2-yl]phosphaneHCID 585773703-[4-(benzyloxy)phenyl]-6-chloro-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

生成物 1

HCID 585777083-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one

試薬・触媒・溶媒 4

HCID 5974Hexadecyltrimethylammonium Bromide触媒HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 962Water溶媒2 回HCID 312751,4-Dioxane溶媒

反応条件

温度
100 °C

実験手順

A mixture of 3-[4-(benzyloxy)phenyl]-6-chloro-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (190 mg), Pd2 dba3 (23 mg), 2-di-tert-butylphosphino-3,4,5,6-tetramethyl-2′,4′,6′-triisopropyl-1,1′-biphenyl (48 mg) and KOH (145 mg) in dioxane (3 ml) and water (3 mL) was stirred at 100° C. under Ar atmosphere for 6 h. The mixture was cooled to room temperature, and cetyltrimethylammonium bromide (50 mg) and iodomethane (0.034 mL) were added. After stirring at 100° C. for 2 h, the mixture was cooled to room temperature. Iodomethane (0.034 mL) was added to the mixture. After stirring at room temperature, the mixture was poured into water, and the mixture was extracted with AcOEt. The organic layer was dried over Na2SO4, filtered and concentrated in vacuo. The residue was purified by column chromatography (silica gel, eluted with 5%-40% AcOEt in hexane) to give 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (125 mg) as a dark yellow oil.

後処理

  1. temperatureThe mixture was cooled to room temperature
  2. stirringAfter stirring at 100° C. for 2 h
  3. temperaturethe mixture was cooled to room temperature
  4. stirringAfter stirring at room temperature
  5. extractionthe mixture was extracted with AcOEt
  6. dry with materialThe organic layer was dried over Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customThe residue was purified by column chromatography (silica gel, eluted with 5%-40% AcOEt in hexane)

出典と根拠

ORDレコード
ord-ef79d56a98584b1ab042963b4e0ec069
出典データセット
uspto-grants-2014_09
特許番号
US08846713B2

関連ノート

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