Hydrochloric Acid → HCID 135736893, compound

Participants

Reaction Steps

To a suspension of 4-methylthiobenzyl bromide (5.6 g. 25.8 mmol), thiotetronic acid (3.0 g, 25.8 mmol) in dioxane (50 ml), was added aqueous potassium hydroxide (25.8 mL). The mixture was stirred at temperatures in the range of 65°-70° C. for 3 hours. Then, the mixture was cooled to room temperature, poured into H2O, acidified with HCl (2N) and extracted with EtOAc. The organic extracts were dried over MgSO4. Evaporation and purification by flash chromatography on acid washed (5% H3PO4 in MeOH) silica gel (eluting solvent hexane/EtOAc 1/3) gave a white solid (1.72 g, 26.5%): m.p. 206°-208° C.

Provenance & Evidence