反应详情

To a mixture of 2-methyl-4-(methylamino)benzaldehyde (D93) (0.397 g) and 1,1-dimethylethyl (2S)-2-methyl-1-piperazinecarboxylate (0.533 g, 2.66 mmol) in 1,2-DCE (35 mL) was added sodium tri(acetoxy)borohydride (0.847 g, 4.00 mmol) and the reaction stirred at room temperature overnight. Saturated aqueous NaHCO3 (30 mL) was added and the mixture was stirred for 4 h. The reaction mixture was extracted with DCM and the organics were dried and concentrated to give the crude product which was purified by column chromatography. Elution with ether/petroleum ether gave the title compound as a colourless oil (0.328 g).

1. stirringthe mixture was stirred for 4 h
2. extractionThe reaction mixture was extracted with DCM
3. customthe organics were dried
4. concentrationconcentrated
5. customto give the crude product which
6. customwas purified by column chromatography
7. washElution with ether/petroleum ether