Trifluoroacetic acid → HCID 178523214, compound

Participants

Reaction Steps

To 670 mg of the product from step A (crude but assumed to be 0.8 mmol based on the previous reaction), cooled in an ice bath under argon, was added 3 mL of trifluroacetic acid. The resulting mixture was allowed to slowly return to room temperature and stir for 5 hours. The mixture was then partitioned between saturated NaHCO3 solution and ethyl acetate. The organic layer was separated, dried over MgSO4 and concentrated to 139 mg of a white solid (83% pure by LC). The aqueous layer was extracted twice with ethyl acetate and the combined organic layers were dried over MgSO4 and concentrated to 0.10 g of yellow oil (70% pure by LC). Obtain a total of 239 mg (0.37 mmol, 47% yield) of crude title product.

Provenance & Evidence