Phosphoric Acid → HCID 88028514, compound

Participants

Reaction Steps

Part A: To the ethyl acetate solution (4 mL) of Example 252 (0.5 g, 0.9 mmol) was added concentrated phosphoric acid (85%, 0.1248 g, 1.08 mmol) and solution was stirred at ambient temperature for 2 hours. Evaporation of the solvent and recrystallization from hot ethanol gave the title compound as a white powder (0.4917 g, 82.7%). Analytical calculation for C22H25N2O7SF3.H3PO4.H2O: C, 41.64; H, 4.77; N, 4.42. Found: C, 41.14; H, 4.64; N, 4.25.

Provenance & Evidence