Triethylamine → 6-(1,1'-Biphenyl-3-yl)-4-hydroxy-3-[(2-isobutylphenyl)thio]-2H-pyran-2-one

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The title compound was prepared by Method A using 3'-phenylacetophenone (2 g, 10.20 mmol), trimethylsilyl triflate (2.27 g, 10.20 mmol), triethylamine (2.06 g, 20.40 mmol), methylene chloride (20 mL), and diethyl ester of [(2-isobutylphenyl)thio]propanedioic acid (1.14 g, 5.1 mmol). m.p. 187-188° C. 1H NMR (400 MHz, DMSO-d6) δ 0.83 (d, 6H), 1.78 (m, 1H), 2.4 (d, 2H), 7.03 (s, 1H), 7.08 (s, 4H), 7.44 (t, 1H), 7.53 (t, 2H), 7.67 (t, 1H), 7.75 (s, 1H), 7.78 (s, 1H), 7.86 (m, 2H), 8.08 (s, 1H).

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