Imidazole → Methyl 2-methyl-2-[(trimethylsilyl)oxy]propanoate

HRID 357226

反応式

HRID 357226 の反応式
[OH:1][C:2]([CH3:8])([CH3:7])[C:3]([O:5][CH3:6])=[O:4].N1C=CN=C1.[CH3:14][Si:15](Cl)([CH3:17])[CH3:16]>C(Cl)Cl>[CH3:14][Si:15]([CH3:17])([CH3:16])[O:1][C:2]([CH3:8])([CH3:7])[C:3]([O:5][CH3:6])=[O:4]

参加物

5

実験手順

To a solution of 1.2 mL (10.4 mmol) of methyl 2-hydroxy-isobutyrate in 50 mL of CH2Cl2 were added 1.2 g (17.6 mmol) of imidazole and 2.1 mL (16.6 mmol) of TMSCl. The mixture was stirred at r.t. for 1.5 h and quenched with 20 mL of H2O. The organic layer was dried over MgSO4, concentrated and passed through a short plug of silica gel eluted with 9:1 hexane/EtOAc. Evaporation of solvent afforded 1.27 g of the title compound as a colorless oil.

後処理

  1. customquenched with 20 mL of H2O
  2. dry with materialThe organic layer was dried over MgSO4
  3. concentrationconcentrated
  4. washeluted with 9:1 hexane/EtOAc
  5. customEvaporation of solvent

出典と根拠

ORDレコード
ord-939c233f54a54bfabcc151e65d9cfbd4
出典データセット
uspto-grants-1998_11
特許番号
US05840746

関連ノート

読み込み中…