Nitrogen → 4-[1-methyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl]-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine

HRID 1180958ノート

反応式

HRID 1180958 の反応式
Br[C:2]1[CH:7]=[CH:6][N:5]=[C:4]2[N:8]([S:15]([C:18]3[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=3)(=[O:17])=[O:16])[C:9]([Si:11]([CH3:14])([CH3:13])[CH3:12])=[CH:10][C:3]=12.[CH3:24][N:25]1[CH:29]=[C:28](B2OC(C)(C)C(C)(C)O2)[C:27]([C:39]2[CH:44]=[CH:43][C:42]([N+:45]([O-:47])=[O:46])=[CH:41][CH:40]=2)=[N:26]1.N#N>O1CCOCC1.C([O-])(O)=O.[Na+].[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[CH3:24][N:25]1[CH:29]=[C:28]([C:2]2[CH:7]=[CH:6][N:5]=[C:4]3[N:8]([S:15]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)(=[O:17])=[O:16])[C:9]([Si:11]([CH3:14])([CH3:13])[CH3:12])=[CH:10][C:3]=23)[C:27]([C:39]2[CH:40]=[CH:41][C:42]([N+:45]([O-:47])=[O:46])=[CH:43][CH:44]=2)=[N:26]1

参加物

7

反応物 3

HCID 947NitrogenHCID 687417291-methyl-3-(4-nitrophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 689992204-bromo-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine

生成物 1

HCID 689972904-[1-methyl-3-(4-nitrophenyl)-1H-pyrazol-4-yl]-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine収率 36%

試薬・触媒・溶媒 3

HCID 11979704Tetrakis(triphenylphosphine)palladium触媒HCID 312751,4-Dioxane溶媒HCID 516892Sodium Bicarbonate溶媒

反応条件

温度
105 °C

実験手順

A mixture of 4-bromo-1-(phenylsulfonyl)-2-(trimethylsilyl)-1H-pyrrolo[2,3-b]pyridine (37 mmol) and 1-methyl-3-(4-nitrophenyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (37 mmol) in 1,4-dioxane (300 ml) and saturated NaHCO3(aq) (100 ml) was degassed with N2 for 10 minutes after which time tetrakis(triphenylphosphine) palladium(0) (1.85 mmol) was added and the resulting mixture was heated at 105° C. overnight. The reaction was then concentrated, diluted with CHCl3 (200 ml) and EtOAc (200 ml), sonicated for 10 minutes, filtered through Celite 545, and concentrated to yield a red oil which was purified on 400 g silica gel (CHCl3/EtOAc w/0.1% MeOH) to give the title product as a light yellow foam (36%). ESMS [M+H]+: 532.0.

後処理

  1. additionwas added
  2. concentrationThe reaction was then concentrated
  3. additiondiluted with CHCl3 (200 ml) and EtOAc (200 ml)
  4. customsonicated for 10 minutes
  5. filtrationfiltered through Celite 545
  6. concentrationconcentrated
  7. customto yield a red oil which
  8. customwas purified on 400 g silica gel (CHCl3/EtOAc w/0.1% MeOH)

出典と根拠

ORDレコード
ord-36615a67e38248409b618efdda66f69e
出典データセット
uspto-grants-2007_10
特許番号
US07282588B2

反応ノート

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