Water → 1-(6-tert-butyldimethylsilyloxy-2-naphthyl)-2-methyl-1-(1-trityl-1H-imidazol-4-yl)-1-propanol

HRID 1061869

反応式

HRID 1061869 の反応式
Br[C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[CH:8]=[C:7]([O:12][Si:13]([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14])[CH:6]=[CH:5]2.C([Li])CCC.[CH:25]([C:28]([C:30]1[N:31]=[CH:32][N:33]([C:35]([C:48]2[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=2)([C:42]2[CH:47]=[CH:46][CH:45]=[CH:44][CH:43]=2)[C:36]2[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=2)[CH:34]=1)=[O:29])([CH3:27])[CH3:26].O>C1COCC1.CCCCCC>[Si:13]([O:12][C:7]1[CH:8]=[C:9]2[C:4](=[CH:5][CH:6]=1)[CH:3]=[C:2]([C:28]([C:30]1[N:31]=[CH:32][N:33]([C:35]([C:48]3[CH:53]=[CH:52][CH:51]=[CH:50][CH:49]=3)([C:42]3[CH:43]=[CH:44][CH:45]=[CH:46][CH:47]=3)[C:36]3[CH:41]=[CH:40][CH:39]=[CH:38][CH:37]=3)[CH:34]=1)([OH:29])[CH:25]([CH3:27])[CH3:26])[CH:11]=[CH:10]2)([C:16]([CH3:19])([CH3:18])[CH3:17])([CH3:15])[CH3:14]

参加物

7

反応物 4

HCID 962WaterHCID 10150490isopropyl(1-trityl-1H-imidazol-4-yl)ketoneHCID 13473083[(6-Bromonaphthalen-2-yl)oxy](tert-butyl)dimethylsilaneHCID 178418339Butyllithium

生成物 1

HCID 220184421-(6-tert-butyldimethylsilyloxy-2-naphthyl)-2-methyl-1-(1-trityl-1H-imidazol-4-yl)-1-propanol収率 90.9%

試薬・触媒・溶媒 2

HCID 8028Tetrahydrofuran溶媒2 回HCID 8058Hexane溶媒

反応条件

温度
-70 °C

実験手順

6-Bromo-2-tert-butyldimethylsilyloxynaphthalene (60.0 g) was dissolved in THF (600 mL) and the solution was cooled to −70° C. A solution (1.6 M: 111 mL) of n-butyllithium in hexane was slowly added dropwise and the mixture was stirred for 30 min. Then a solution (200 mL) of isopropyl(1-trityl-1H-imidazol-4-yl)ketone (52.1 g) in THF was added dropwise. The mixture was stirred at −70° C. for 30 min. and water was added to stop the reaction. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with water and saturated brine, dried and concentrated. The residue was recrystallized from ethyl acetate-hexane to give the title compound (79.5 g) as a colorless powder.

後処理

  1. stirringThe mixture was stirred at −70° C. for 30 min.
  2. customthe reaction
  3. customThe organic layer was separated
  4. extractionthe aqueous layer was extracted with ethyl acetate
  5. washThe combined organic layers were washed with water and saturated brine
  6. customdried
  7. concentrationconcentrated
  8. customThe residue was recrystallized from ethyl acetate-hexane

出典と根拠

ORDレコード
ord-40cd567c20ca4a71b9f46177f3f5f678
出典データセット
uspto-grants-2005_11
特許番号
US06960586B2

関連ノート

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