HRID58368

反应详情

EQUATION

反应方程式

HRID 58368 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

1

PROCEDURE

实验过程

Amine 25 (0.550 g, 1.17 mmol) was dissolved in anhydrous DMF (20 mL). Benzyl chloroformate (0.250 mL, 1.76 mmol) and DIPEA (0.815 mL, 4.68 mmol) were added and the reaction mixture was stirred at rt for 18 h before being partitioned between EtOAc and 1M hydrochloric acid. The aqueous phase was extracted twice more with EtOAc and the combined organic extracts were dried (MgSO4), filtered and concentrated in vacuo. The crude material was purified by flash chromatography on silica using a gradient of EtOAc/DCM to yield an off-white solid, 0.460 g, 69%. Rf=0.32 (30% EtOAc/DCM). m.p. 91-93° C.

WORKUP

后处理

  1. custombefore being partitioned between EtOAc and 1M hydrochloric acid
  2. extractionThe aqueous phase was extracted twice more with EtOAc
  3. dry with materialthe combined organic extracts were dried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude material was purified by flash chromatography on silica using a gradient of EtOAc/DCM
  7. customto yield an off-white solid, 0.460 g, 69%