Cesium carbonate → HCID 86684473、化合物

HRID 1022058ノート

反応式

HRID 1022058 の反応式
[NH2:1][C:2]1[N:7]=[CH:6][C:5]([C:8]([N:10]2[CH2:15][CH2:14][O:13][CH2:12][C@H:11]2[CH3:16])=[O:9])=[CH:4][CH:3]=1.Br[C:18]1[C:19](=[O:26])[N:20]([CH3:25])[N:21]=[C:22]([Cl:24])[CH:23]=1.C(=O)([O-])[O-].[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>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].O1CCOCC1>[Cl:24][C:22]1[CH:23]=[C:18]([NH:1][C:2]2[CH:3]=[CH:4][C:5]([C:8]([N:10]3[CH2:15][CH2:14][O:13][CH2:12][C@H:11]3[CH3:16])=[O:9])=[CH:6][N:7]=2)[C:19](=[O:26])[N:20]([CH3:25])[N:21]=1

参加物

7

反応物 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 592164744-Bromo-6-chloro-2-methyl-2,3-dihydropyridazin-3-oneHCID 86683985(R)-(6-Aminopyridin-3-yl)(3-methylmorpholino)methanone

生成物 1

HCID 86684473HCID 86684473、化合物収率 79%

試薬・触媒・溶媒 2

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 312751,4-Dioxane溶媒

実験手順

A 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 1,4-dioxane (50 mL), 248a (330 mg, 1.5 mmol), 4-bromo-6-chloro-2-methylpyridazin-3(2H)-one (446 mg, 2.0 mmol), cesium carbonate (978 mg, 3.0 mmol), Xantphos (88 mg, 0.15 mmol), and tris(dibenzylideneacetone)dipalladium(0) (68 mg, 0.075 mmol). The system was subjected to three cycles of vacuum/argon flush and heated at reflux for 4 h. It was then cooled to room temperature and filtered. The solid was washed with dichloromethane (3×30 mL) and the combined filtrate was concentrated under reduced pressure. The residue was purified by silica-gel column chromatography eluting with petroleum ether/ethyl acetate (2:1 to 1:2) to afford 248b (430 mg, 79%) as yellow solid. MS-ESI: [M+H]+ 364.3

後処理

  1. customA 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser
  2. customflush
  3. temperatureheated
  4. temperatureat reflux for 4 h
  5. filtrationfiltered
  6. washThe solid was washed with dichloromethane (3×30 mL)
  7. concentrationthe combined filtrate was concentrated under reduced pressure
  8. customThe residue was purified by silica-gel column chromatography
  9. washeluting with petroleum ether/ethyl acetate (2:1 to 1:2)

出典と根拠

ORDレコード
ord-b222149a04574b838feb507f2d180414
出典データセット
uspto-grants-2014_05
特許番号
US08716274B2

反応ノート

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