HRID235744

反应详情

EQUATION

反应方程式

HRID 235744 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A mixture of 4-nitrobenzyl 2-diazo-4-[(2R,3R)-3-{1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl}-4-oxoazetidin-2-yl]-3-oxobutanoate (1.00 g) and rhodium (II) acetate (5 mg) in benzene (50 ml) was refluxed for 25 minutes. After cooling to ambient temperature, the mixture was filtered through cellulose powder. The filtrate was evaporated to give 4-nitrobenzyl (2R, 5R, 6R)-3,7-dioxo-6-[1-methyl-1-(4-nitrobenzyloxycarbonyloxy)ethyl]-1-azabicyclo[3.2.0]heptane-2-carboxylate (0.94 g) as an amorphous solid.

WORKUP

后处理

  1. temperaturewas refluxed for 25 minutes
  2. filtrationthe mixture was filtered through cellulose powder
  3. customThe filtrate was evaporated