Chlorotrimethylsilane → 4-Hydroxy-6-(3-phenoxyphenyl)-3-[(2-phenylethyl)thio]-2H-pyran-2-one

Participants

Reaction Steps

The title compound was prepared by Method A using 3'-phenoxyacetophenone (2.00 g, 9.43 mmol), lithium bis(trimethylsilyl)amide (2.36 g, 14.15 mmol), chlorotrimethylsilane (1.79 mL, 14.15 mmol), THF (100 mL), and diethyl ester of [(2-phenylethyl)thio]-propanedioic acid (1.00 g, 3.37 mmol). m.p. 114-115° C.; 1H NMR (400 MHz, DMSO-d6) δ2.76 (t, 2 H), 2.99 (t, 2 H), 6.76 (s, 1 H), 7.09 (m, 7 H), 7.34 (s, 1 H), 7.44 (t, 2 H), 7.56 (m, 2 H).

Provenance & Evidence