HRID1089127
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
1.74 g of the silver salt of 2-[(3S,4R)-3-[(1R)-1allyloxycarbonyloxyethyl]-4-mercapto-2-oxo-azetidin-1-yl]-2-triphenylphosphoranylideneacetic acid allyl ester are reacted in 30 ml of methylene chloride with 0.41 ml of pyridine, 20 mg of 4-dimethylaminopyridine and 0.7 g of 4-fluorophenoxyacetyl chloride. After working up analogously to Example 1, 2-[(3S,4R)-3-[(1R)-1-allyloxycarbonyloxyethyl]-4-(4-fluorophenoxyacetylthio)-2-oxo-azetidin-1-yl]-2-triphenylphosphoranylideneacetic acid allyl ester is obtained.