HRID376586

反应详情

EQUATION

反应方程式

HRID 376586 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

A solution of 4-methoxybenzyl 2-[(3R,4R)-4-[(2RS,5SR)-5-methoxymethyltetrahydrofuran-2-ylcarbonylmethylthio]-3-phenoxyacetamidoazetidin-2-on-1-yl]-2-tri-n-butylphosphoranylideneacetate (4.25g) and benzoic acid (20mg) in toluene (100ml) was heated to reflux for 10h. The mixture was cooled and the solvent evaporated. The product (1.93g) was isolated by column chromatography of the residue using gradient elution (silica gel 1:1 hexane : ethyl acetate going to neat ethyl acetate); vmax (CHCl3) 3409, 1784, 1722 and 1695cm-1.

WORKUP

后处理

  1. temperatureto reflux for 10h
  2. temperatureThe mixture was cooled
  3. customthe solvent evaporated