Benzene, [1-[(trimethylsilyl)oxy]ethenyl]- → 4-Hydroxy-3-[(2-naphthalenylmethyl)thio]-6-phenyl-2H-pyran-2-one

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The title compound was prepared by Method A using 1-phenyl-1-(trimethylsilyloxy)ethylene (0.475 g, 2.46 mmol) and dimethyl ester of [(2-naphthalenylmethyl)thio]propanedioic acid (0.500 g, 1.64 mmol). m.p. dec>250° C.; 1H NMR (250 MHz, DMSO-d6) δ4.06 (s, 2 H), 6.47 (s, 1 H), 7.46 (m, 6 H), 7.78 (m, 6 H).

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