Sodium hydride → 2-Bromo-6-(4-methoxy-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene

HRID 532644ノート

反応式

HRID 532644 の反応式
[H-].[Na+].[Br:3][C:4]1[S:5][C:6]2[CH2:7][C:8]3[C:14]([C:15]4[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=4)=[N:13][NH:12][C:9]=3[C:10]=2[CH:11]=1.[CH3:23][Si:24]([CH2:27][CH2:28][O:29][CH2:30]Cl)([CH3:26])[CH3:25]>C1COCC1>[Br:3][C:4]1[S:5][C:6]2[CH2:7][C:8]3[C:14]([C:15]4[CH:20]=[CH:19][C:18]([O:21][CH3:22])=[CH:17][CH:16]=4)=[N:13][N:12]([CH2:30][O:29][CH2:28][CH2:27][Si:24]([CH3:26])([CH3:25])[CH3:23])[C:9]=3[C:10]=2[CH:11]=1

参加物

5

反応物 3

HCID 24758Sodium hydrideHCID 27242712-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 718160142-Bromo-6-(4-methoxy-phenyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene

生成物 1

HCID 866992302-Bromo-6-(4-methoxy-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene収率 75%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

At 0° C., NaH (60 percent, 1.3 g, 33.0 mmol) was added to a THF solution (40 mL) containing 2-Bromo-6-(4-methoxy-phenyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene (8.3 g, 24.0 mmol). Then SEM-Cl (5.6 mL, 28 mmol) was added to the reaction mixture and the resulting mixture was stirred at 0° C. for 30 min, warmed up to 80° C. and stirred for 2 hr. The solution was cooled to room temperature and poured into ice water. The resulting mixture was extracted with ethyl acetate. The organic layer was collected and washed with saturated aqueous NH4Cl, dried over MgSO4(s), and concentrated under reduced pressure. The oily residue was purified by gravity column chromatography (20% ETOAc in hexane) to give 2-Bromo-6-(4-methoxy-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalene (9.0 g, 18 mmol) as brown solid in 75% yield.

後処理

  1. temperaturewarmed up to 80° C.
  2. stirringstirred for 2 hr
  3. temperatureThe solution was cooled to room temperature
  4. extractionThe resulting mixture was extracted with ethyl acetate
  5. customThe organic layer was collected
  6. washwashed with saturated aqueous NH4Cl
  7. dry with materialdried over MgSO4(s)
  8. concentrationconcentrated under reduced pressure
  9. customThe oily residue was purified by gravity column chromatography (20% ETOAc in hexane)

出典と根拠

ORDレコード
ord-2afad1a61cd54691b8d794979b4d8c7b
出典データセット
uspto-grants-2014_10
特許番号
US08853207B2

反応ノート

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