反应详情

4,4′-(1-(4-tert-Butylphenyl)pyrrolidine-2,5-diyl)bis(N-(4-methoxybenzyl)-2-nitroaniline) (2 g, 2.79 mmol) was dissolved in a mixture of THF (15 mL), ethanol (15 mL), and ethyl acetate (5 mL). Then platinum oxide (0.254 g, 1.12 mmol) was added as a THF slurry. The flask was evacuated and purged with nitrogen twice, then evacuated and opened to a hydrogen balloon. The mixture was stirred at room temperature for 20 hours, then filtered through diatomaceous earth, concentrated, and purified by chromatography on silica gel with an 80 g column, eluting with 0-40% ethyl acetate/dichloromethane to give the first peak of trans product (0.508 g, 28%).

1. customThe flask was evacuated
2. custompurged with nitrogen twice
3. customevacuated
4. filtrationfiltered through diatomaceous earth
5. concentrationconcentrated
6. custompurified by chromatography on silica gel with an 80 g column
7. washeluting with 0-40% ethyl acetate/dichloromethane