Imidazole → HCID 178455371、化合物

HRID 1095146

反応式

HRID 1095146 の反応式
[C@H:1]1([OH:8])[CH2:6][CH2:5][C@H:4]([OH:7])[CH2:3][CH2:2]1.N1C=CN=C1.[C:14]([Si:18]([CH3:21])([CH3:20])Cl)([CH3:17])([CH3:16])[CH3:15]>CN(C)C=O>[C:14]([Si:18]([CH3:21])([CH3:20])[O:7][C@H:4]1[CH2:5][CH2:6][C@H:1]([OH:8])[CH2:2][CH2:3]1)([CH3:17])([CH3:16])[CH3:15]

参加物

5

反応物 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 178521615HCID 178521615、化合物

生成物 1

HCID 178455371HCID 178455371、化合物収率 65.1%

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

反応条件

温度
0 °C

実験手順

To a solution of trans-1,4-cyclohexanediol (3 g, 26 mmol) in anhydrous N,N-dimethylformamide (30 mL) at 0° C. was added imidazole (1.7 g, 26 mmol) and tert-butyldimethylchlorosilane (3.87 g, 26 mmol). The reaction mixture was then stirred at 0° C. for 1 h. The mixture was partitioned between ethyl acetate and water. Organic layer was separated, aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with water and brine, dried over MgSO4, and concentrated. The residue was purified by chromatography (EtOAc:hexanes=1;2) to give trans-4-(tert-buyl-dimethyl-silanyloxy)-cyclohexanol as a white solid (3.9 g, 65%).

後処理

  1. customThe mixture was partitioned between ethyl acetate and water
  2. customOrganic layer was separated
  3. extractionaqueous layer was extracted with ethyl acetate
  4. washThe combined organic layers were washed with water and brine
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated
  7. customThe residue was purified by chromatography (EtOAc:hexanes=1;2)

出典と根拠

ORDレコード
ord-2ee3af40792347619c7d449624ac0469
出典データセット
uspto-grants-2012_03
特許番号
US08134001B2

関連ノート

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