HRID576433

反应详情

EQUATION

反应方程式

HRID 576433 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

CONDITIONS

反应条件

温度
60 °C

PROCEDURE

实验过程

To a solution of 2-bromo-3-chloro-4-(4-ethoxybenzyl)-6-((3S,4R,5R,6R)-3,4,5-tris(benzyloxy)-6-(benzyloxymethyl)-tetrahydro-2H-pyran-2-yl)phenol (500 mg, 0.579 mmole) in acetone (15 mL) were added K2CO3 (120 mg, 0.869 mmole) and allyl bromide (75 μL, 0.869 mmole) continuously. The resulting solution was stirred at 60° C. overnight, diluted with a saturated NaHCO3 and extracted with ethyl acetate. The organic layer was washed with water then brine, dried over MgSO4, filtered, and concentrated in vacuo. The crude residue was purified on Biotage® purification apparatus to yield the title compound (325 mg, 62%) as a colorless gum.

WORKUP

后处理

  1. extractionextracted with ethyl acetate
  2. washThe organic layer was washed with water
  3. dry with materialbrine, dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude residue was purified on Biotage® purification apparatus