Triethylamine → tert-butyl 4-(4-bromo-1-(2-((methylsulfonyl)oxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

HRID 2088891ノート

反応式

HRID 2088891 の反応式
[Br:1][C:2]1[N:3]=[C:4]([CH:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)[N:5]([CH2:7][CH2:8][OH:9])[CH:6]=1.C(N(CC)CC)C.[CH3:30][S:31](Cl)(=[O:33])=[O:32]>ClCCl>[Br:1][C:2]1[N:3]=[C:4]([CH:10]2[CH2:15][CH2:14][N:13]([C:16]([O:18][C:19]([CH3:22])([CH3:21])[CH3:20])=[O:17])[CH2:12][CH2:11]2)[N:5]([CH2:7][CH2:8][O:9][S:31]([CH3:30])(=[O:33])=[O:32])[CH:6]=1

参加物

5

反応物 3

HCID 8471TriethylamineHCID 31297Methanesulfonyl chlorideHCID 67265139tert-Butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate

生成物 1

HCID 86641601tert-butyl 4-(4-bromo-1-(2-((methylsulfonyl)oxy)ethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate収率 96%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
0 °C

実験手順

Combine tert-butyl 4-(4-bromo-1-(2-hydroxyethyl)-1H-imidazol-2-yl)piperidine-1-carboxylate (3.84 g, 10.26 mmol), dichloromethane (60 mL), and triethylamine (4.29 mL, 3.0 eq). Place under nitrogen and cool to 0° C. Add methanesulfonyl chloride (0.95 mL, 1.2 eq) dropwise. After 15 minutes, quench with saturated aqueous sodium bicarbonate. Wash the organics with saturated aqueous sodium chloride. Dry the organics over anhydrous magnesium sulfate, filter, and concentrate in vacuo to give the title compound (4.45 g, 96%). MS (ES) m/z=452 [M]+.

後処理

  1. customquench with saturated aqueous sodium bicarbonate
  2. washWash the organics with saturated aqueous sodium chloride
  3. dry with materialDry the organics over anhydrous magnesium sulfate
  4. filtrationfilter
  5. concentrationconcentrate in vacuo

出典と根拠

ORDレコード
ord-f0af52b84000475389a539afb57fe2ed
出典データセット
uspto-grants-2013_05
特許番号
US08436002B2

反応ノート

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