Piperidine → 4-hydroxy-5-(2-isopropyl-5-methyl-phenyl)sulfanyl-2,2-diphenyl-3H-pyran-6-one

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Reaction Steps

The title compound was prepared as described in General Method 6 from 2.0 mmol of 3-bromo-5,6-dihydro-4-hydroxy-6,6-diphenyl-2H-pyran-2-one (prepared in example AAA), 2.1 mmol of 5-methyl-2-isopropylbenzenethiol, and 2.1 mmol of piperidine in 30 mL of dichloromethane. The product was chromatographed on silica gel, eluting first with chloroform and then with 5% methanol in chloroform (m.p. 183°-184° C.). 1H NMR (DMSO-d6) δ1.15 (d, 6H), 1.85 (s, 3H), 3.22 (m, 1H), 3.80 (bs, 2H), 5.88 (bs, 1H), 6.77 (d, 1H), 7.03 (d, 1H), 7.32-7.47 (m, 10H).

Provenance & Evidence