HRID2081743
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
30 ml of benzene was added to 1.00 g of (3R,5R,6R)-6-amino-3-(3-benzylideneamino-2-oxo-imidazolidin-1-yl)-3-(p-nitrobenzyloxycarbonyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane and 0.46 g of 3,5-di-tert-butyl-4-hydroxybenzaldehyde. The mixture was subjected to azeotropy and dehydration under reflux for 1 hour using a Dean-Stark aparatus. The reaction mixture was cooled, and the solvent was removed by distillation under reduced pressure to obtain 1.40 g (yield: 98.6%) of (3R,5R,6R)-3-(3-benzylideneamino-2-oxoimidazolidin-1-yl)-6-(3,5-di-tert-butyl-4-hydroxybenzylideneamino)-3-(p-nitrobenzyloxycarbonyl)-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane.
WORKUP
后处理
- temperatureunder reflux for 1 hour
- temperatureThe reaction mixture was cooled
- customthe solvent was removed by distillation under reduced pressure