تفاعل #65293

معادلة التفاعل

3-methanesulphonyloxy-1-(N-p-nitrobenzyloxycarbonylacetimidoyl)pyrrolidine

N,N-dimethylformamide

sodium hydride

thioacetic acid

→

title compound

المردود 79.1%

3-Acetylthio-1-(N-p-nitrobenzyloxycarbonylacetimidoyl)pyrrolidine

المردود 79.1%

المذيبات

water

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةcooling
2. 2
   workup.STIRRINGThe mixture was then stirred for 3 hours at 65° C
3. 3
   درجة الحرارةto cool
4. 4
   استخلاصthe mixture was extracted with ethyl acetate
5. 5
   غسيلThe extract was washed with water
6. 6
   أخرىdried
7. 7
   workup.DISTILLATIONthe solvent was distilled off under reduced pressure
8. 8
   أخرىThe residue was purified by chromatography through a column of silica gel
9. 9
   غسيلeluted with a 2:1 by volume mixture of benzene and ethyl acetate

الإجراء التجريبي

To 300 ml of anhydrous N,N-dimethylformamide were added 7.35 g of sodium hydride in the form of a 55% w/w/ dispersion in oil, followed by 12.5 g of thioacetic acid. The mixture was then stirred for 10 minutes, with ice-cooling, after which 40 g of 3-methanesulphonyloxy-1-(N-p-nitrobenzyloxycarbonylacetimidoyl)pyrrolidine were added. The mixture was then stirred for 3 hours at 65° C. After the reaction mixture had been allowed to cool, water was added and the mixture was extracted with ethyl acetate. The extract was washed with water and dried and then the solvent was distilled off under reduced pressure. The residue was purified by chromatography through a column of silica gel, eluted with a 2:1 by volume mixture of benzene and ethyl acetate, to give 30 g of the title compound.

المصدر