Chlorotrimethylsilane → 4-Hydroxy-3-phenethylsulfanyl-6-(4-phenoxyphenyl)pyran-2-one

Participants

Reaction Steps

The title compound was prepared by Method A using 4'-phenoxyacetophenone (1.07 g, 5.06 mmol), lithium bis(trimethylsilyl)amide (0.930 g, 5.56 mmol), chlorotrimethylsilane (0.705 mL, 5.56 mmol), THF (56 mL), and diethyl ester of [(2-phenylethyl)thio]propanedioic acid (1.00 g, 3.37 mmol). m.p. 127°-128° C.; 1H NMR (400 MHz, DMSO-d6) δ 2.77 (t, 2 H), 2.99 (t, 2 H), 6.72 (s, 1 H), 7.18 (m, 10H), 7.46 (t, 2 H), 7.82 (d, 2 H).

Provenance & Evidence