反应 #1340606

反应方程式

diazomethane

(3S,4S)-1-benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-vinylpyrrolidine

→

title compound

(3S,4S)-1-Benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-cyclopropylpyrrolidine

溶剂

diethyl ether

反应条件

后处理

1. 1
   workup.ADDITIONwas added
2. 2
   其他After completion of reaction, insoluble matter
3. 3
   其他was removed through filtration
4. 4
   浓缩The filtrate was concentrated under reduced pressure
5. 5
   其他the obtained residue was purified though silica gel column chromatography (ethyl acetate:n-hexane=1:9 to 1:4)

实验过程

An excessive amount of a solution of diazomethane in diethyl ether (30 mL) was added to (3S,4S)-1-benzyloxycarbonyl-3-(tert-butoxycarbonyl)amino-4-vinylpyrrolidine (270 mg, 779 μmol). Under cooling with ice, palladium acetate (10 mg) was added thereto, followed by stirring at room temperature for 2 hours. After completion of reaction, insoluble matter was removed through filtration. The filtrate was concentrated under reduced pressure, and the obtained residue was purified though silica gel column chromatography (ethyl acetate:n-hexane=1:9 to 1:4), to thereby yield the title compound as a colorless oily substance (269 mg, 96%).

来源