Hydrochloric Acid → 2-{[1-Hydroxy-4-(thiophene-2-sulfonamido)naphthalen-2-yl]sulfanyl}acetic acid

Participants

Reaction Conditions

Reaction Steps

8 mg Ethyl 2-(1-hydroxy-4-(thiophene-2-sulfonamido)naphthalen-2-ylthio)acetate (9a) was dissolved in 0.5 ml dioxane, to which was added 0.5 ml HCl solution (4 N). The reaction mixture was heated at 100° C. with M.W. for 10 min and diluted to 20 ml with ethyl acetate. Washed with water and brine, the organic solution was dried over Na2SO4 and filtered. The filtrate was concentrated to dryness affording title compound 6 mg (80%) as a pale yellow solid, m.p.: 175-177° C.

Provenance & Evidence