Methanol → Sulindac Sulfide Methyl Ester

Participants

Reaction Steps

To a suspension of (Z)-5-fluoro-2-methyl-1-(4-methylthiobenzylidene)inden-3-ylacetic acid (51 g, 0.15 mol) in methanol (600 mL) at 0° C. there was slowly added thionyl chloride (26.8 g, 0.225 mol). The mixture was then stirred at room temperature for 2 hours and filtered to afford the title compound as a yellow solid, mp 73°-75° C.

Provenance & Evidence