反应详情

To a solution of N-Boc-cycloleucinal (5.33 g, 25 mmol) and 4-bromoaniline (4.3 g, 25 mmol) in dichloroethane (160 mL) was added sodium triacetoxyborohydride (10.6 g, 50 mmol) portionwise. After the addition, the resulting mixture was stirred at rt for over night. The reaction mixture was quenched with saturated NaHCO3, and extracted with DCM (4×100 mL). The combined DCM was dried (Na2SO4) and concentrated. The residue was subjected to flash column (10-30% EtOAc in hexane) to give the desired product as a white solid (8.3 g, 90%). MS (MH+ 369 and 371).

1. additionAfter the addition
2. customThe reaction mixture was quenched with saturated NaHCO3
3. extractionextracted with DCM (4×100 mL)
4. dry with materialThe combined DCM was dried (Na2SO4)
5. concentrationconcentrated