Thiophenol → (R,E)-methyl 3-(4-((6-hydroxy-2-(2-(1-hydroxyethyl)phenyl)benzo[b]thiophen-3-yl)oxy)phenyl)acrylate

Participants

Reaction Steps

To a solution of afford (R,E)-methyl 3-(4-((2-(2-(1-hydroxyethyl)phenyl)-6-methoxybenzo[b]thiophen-3-yl)oxy)phenyl)acrylate (27.5 mg, 0.060 mmol) N-methyl-2-pyrrolidone (1.0 mL) was added thiophenol (0.00922 mL, 0.090 mmol) and K2CO3 (8.25 mg, 0.060 mmol). The resulting mixture was subjected to microwave irradiation at 190° C. for 1 h after which time the reaction was diluted with EtOAc and washed with brine. The layers were separated and the aqueous layer was further extracted with EtOAc, the combined organic layers were dried over anhydrous Na2SO4, filtered and concentrated in vacuo. The resulting crude material was purified by column chromatography (SiO2, 0-30% EtOAc/heptane) to afford (R,E)-methyl 3-(4-((6-hydroxy-2-(2-(1-hydroxyethyl)phenyl)benzo[b]thiophen-3-yl)oxy)phenyl)acrylate (5 mg, 0.011, 19% yield). LC/MS (m/z, MH+): 445.0.

Provenance & Evidence