反应详情

温度

140 °C

2,2-Dimethyl-3-(piperidine-4-yl)-propionic acid methyl ester (156 mg, 0.78 mmol) from above was mixed with 2-chloro-5-nitropyridine (124 mg, 0.78 mol) in tetrahydrofuran (2 mL) containing triethylamine (0.24 mL). The mixture was heated in a microwave at 140° C. for 30 minutes. The mixture was extracted with ethyl acetate and water. The organic layer was washed with brine and dried. Solvents were evaporated and the residue was triturated with ether to give 2,2-dimethyl-3-(5′-nitro-3,4,5,6-tetrahydro-2H-[1,2′]bipyridinyl-4-yl)-propionic acid methyl ester (199 mg) as a crystalline material. The NMR spectrum obtained on the sample is compatible with its structure.

1. extractionThe mixture was extracted with ethyl acetate and water
2. washThe organic layer was washed with brine
3. customdried
4. customSolvents were evaporated
5. customthe residue was triturated with ether