HCID 44608987, compound → HCID 44608990, compound

Participants

Reaction Steps

tert-Butyl-2-(1-hydroxy-4-(thiophene-2-sulfonamido)naphthalen-2-yloxy)acetate (9d, 0.025 g, 0.057 mmol) was dissolved in 4 ml of 1:1 ratio of dioxane and concentrated hydrochloric acid and stirred at r.t. for 3 h. The mixture solution changed from clear to white cloudy. The solvent was evaporated under reduced pressure. The solid was washed with DCM and hexane separately to get pure product as a gray solid, 97%, m.p.=155-157° C.

Provenance & Evidence