HRID1461606

反应详情

EQUATION

反应方程式

HRID 1461606 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A solution of (3S,4S)-4-(1-t-butyldimethylsilyloxymethylethenyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di(p-anisyl)methyl-2azetidinone (1.0 g) and triethylamine (0.06 ml) in ethyl acetate (50 ml) was hydrogenated under hydrogen atmosphere in the presence of platinum dioxide (0.05 g) at 0°-5° C. for 2 hours. After removal of the catalyst, the filtrate was washed successively with 2 N hydrochloric acid, brine, 5% sodium bicarbonate solution and brine and dried over anhydrous magnesium sulfate. Filtration and concentration of the filtrate in vacuo gave (3S,4S)-4-(1-t-butyldimethylsilyloxymethylethyl)-3-(1-(R)-benzyloxycarbonyloxyethyl)-1-di(p-anisyl)methyl-2-azetidinone.

WORKUP

后处理

  1. customAfter removal of the catalyst
  2. washthe filtrate was washed successively with 2 N hydrochloric acid, brine, 5% sodium bicarbonate solution and brine
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationFiltration and concentration of the filtrate in vacuo