HRID1605402
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
To a solution of 1.04 g of benzhydryl 3-fluoromethyl-7-(2-thienylacetamido)-2-cephem-4-carboxylate in 10 ml of CHCl3 at 0° is added dropwise a solution of 0.35 g of m-chloroperbenzoic acid in 5 ml of CHCl3. The solution is stirred at 0° for 2.5 hours, then diluted with CHCl3 and washed with NaHCO 3, the dried (MgSO4) and evaporated in vacuo. The residue is recrystallized from methanol to yield benzhydryl 3-fluoromethyl-7-(2-thienylacetamido)-3-cephem-4-carboxylate-1-oxide.
WORKUP
后处理
- washwashed with NaHCO 3
- dry with materialthe dried (MgSO4)
- customevaporated in vacuo
- customThe residue is recrystallized from methanol