Tetrahydrofuran → HCID 178445733, compound

Participants

Reaction Steps

The mixture of cis-4-tert-butylcyclohexanol (30.4 mg, 0.000195 mol), (R)-4-(6-hydroxy-5-(trifluoromethyl)naphthalen-2-yl)-4-methyloxazolidin-2-one (50.5 mg, 0.000162 mol) and triphenylphosphine (51.1 mg, 0.000195 mol) in tetrahydrofuran (2 mL, 0.02 mol) was heated to reflux, and diisopropyl azodicarboxylate (0.0383 mL, 0.000195 mol) was added dropwise and was stirred and refluxed for 3 hours. The mixture was taken up into methylene chloride and subjected to chromatography purification with EtOAc/hexane (10:90 to 80:20) to give product (R)-4-(6-(trans-4-tert-butylcyclohexyloxy)-5-(trifluoromethyl)naphthalen-2-yl)-4-methyloxazolidin-2-one (22.2 mg, 30%). LCMS: Rf=2.41 min (450.46, M+1, 70%; 491.47, M+ACN, 100%). 1H NMR (400 MHz, CHLOROFORM-d) δ=8.25 (dd, J=8.7, 1.4 Hz, 1 H), 7.91 (d, J=9.0 Hz, 1 H), 7.79 (d, J=2.0 Hz, 1 H), 7.52 (dd, J=9.3, 2.3 Hz, 1 H), 7.34 (d, J=9.3 Hz, 1 H), 5.98 (br. s., 1 H), 4.45 (d, J=8.6 Hz, 1 H), 4.41 (d, J=8.6 Hz, 1 H), 4.38-4.26 (m, 1 H), 2.19 (d, J=13.1 Hz, 2 H), 1.89 (d, J=10.0 Hz, 2 H), 1.87 (s, 3 H), 1.59-1.48 (m, 2 H), 1.21-1.05 (m, 3 H), 0.89 (s, 9 H).

Provenance & Evidence