Ethylene Glycol → HCID 59435991, compound

Participants

Reaction Steps

1-(4-Amino-3,5-dichlorophenyl)ethanone (15 g, 73.5 mmol), pyridinium p-toluene sulfonic acid (5.5 g, 22 mmol), and ethylene glycol (6.2 mL, 110 mmol) were heated together in benzene (250 mL) with a Dean Stark trap at 100° C. overnight. The benzene was distilled off until ˜75 mL remained and the reaction mixture was extracted with EtOAc and saturated NaHCO3. The organic layer was separated, dried with MgSO4, filtered, and concentrated under rotary evaporation to afford a oily residue. The crude mixture was purified on silica gel chromatography (100% Hex to 100% EtOAc) to afford the desired product.

Provenance & Evidence