Water → HCID 13473208, compound

Participants

Reaction Steps

6-(2,3-Epoxypropoxy)benzothiazole-2-sulfonamide (1.21 gm, 4.25 mmol) was dissolved in ethyl acetate (35 mL) and added to water (25 mL) containing concentrated sulfuric acid (2.5 mL). This two phase mixture was stirred at room temperature overnight and then was poured into water and repeatedly extracted with 5% methanol/ethyl acetate (V/V). The extracts were dried (Na2SO4) and evaporated. The residue (1.2 gm) was dissolved in methanol and allowed to sit overnight to give 1.0 gm of impure product. This material was purified by chromatography on silica gel, eluting with 1% methanol/ethyl acetate (V/V). The combined fractions containing product were evaporated and the residue was triturated with methanol to give material which was recrystallized from methanol/ethyl acetate (0.3 gm), m.p. 183°-185° C.

Provenance & Evidence