Ammonia → HCID 86685864, compound

Participants

Reaction Steps

Ammonia was bubble into a solution of Intermediate 11D (1.34 mg, 0.64 mmol) in EtOH (20 mL) and DMSO (12 mL) for 10 min at 0° C. The reaction was stirred at rt overnight in a sealed pressure vessel. Analytical HPLC showed reaction to have progressed only ca. 10%. The mixture was cooled to −15° C., then ammonia was bubbled through for 7 min. The vessel was sealed and the reaction was stirred at rt overnight. Analytical HPLC showed the reaction to be ca. 25-30% complete. The mixture was diluted with EtOAc (75 mL), washed with water and sat'd aq NaCl, dried over anhydrous MgSO4, filtered and concentrated in vacuo. The residue was purified by silica gel chromatography to provide Intermediate 11E (281 mg, 20%) as a light brown oil. LCMS Anal. Calc'd for C21H24F3NO2 379.42, found [M+H] 380.3.

Provenance & Evidence