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Supporting Information.
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(22) 2-{[(1,1-Dimethyl-3-phenylprop-2-yn-1-yl)oxy]methyl}-3-
phenyl-4H-thiochromen-4-one 1,1-Dioxide (2a)
Yellow oil; yield: 38.5 mg (87%). 1H NMR (400 MHz, CDCl3): δ =
8.18 (dd, J = 8.0, 0.8 Hz, 1 H), 8.12 (dd, J = 8.0, 0.8 Hz, 1 H), 7.87
(ddd, J = 8.0, 7.6, 1.2 Hz, 1 H), 7.75 (ddd, J = 8.0, 7.6, 1.2 Hz, 1 H),
7.43–7.38 (m, 3 H), 7.36–7.34 (m, 2 H), 7.30–7.27 (m, 5 H), 4.61
(s, 2 H), 1.53 (s, 6 H). 13C NMR (100 MHz, CDCl3): δ = 179.0,
147.3, 144.2, 141.0, 134.5, 132.9, 131.7, 131.4, 129.5, 129.33,
129.30, 128.8, 128.3, 128.1, 128.0, 123.2, 122.5, 89.8, 85.6, 72.0,
58.1, 28.5. HRMS (ESI): m/z [M + H]+ calcd for C27H23O4S:
443.1317; found: 443.1327. For 2b–f, see Supporting Informa-
tion.
1
(23) Monitored by H NMR. No decomposition of 2a–f in CDCl3 was
observed during 7 days under laboratory lighting.
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© Georg Thieme Verlag Stuttgart · New York — Synlett 2016, 27, A–E