反应详情

温度

40 °C

To a CH3CN (1 mL) solution of the amine (0.32 g, 0.93 mmol) from EX-608E was added 1.1,1-trifluoro-2,3-epoxypropane (0.24 mL, 2.8 mmol) and Yb(OTf)3 (0.115 g, 0.18 mmol). The cloudy solution was stirred in a sealed flask at 40° C. for 18 h. The cooled reaction mixture was diluted with diethyl ether and washed with water and brine. The organic layer was dried (MgSO4) and evaporated to an oil. Purification by flash chromatography on silica gel eluting with 15% ethyl acetate in hexane gave an oil which was dissolved in EtOH, stripped and dried in vacuo to give 0.13 g (30%) of the desired 3-[(3-phenoxyphenyl)[[3-(tetrahydro-2-furanyl)phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as a colorless oil. Anal. calcd. for C26H26NO3F3.0.5 EtOH: C, 67.33; H, 6.04; N, 2.94.Found: C, 67.49; H, 6.08; N, 2.91.HRMS calcd. 458.1943 [M+H]+, found: 458.1937. 1H NMR (C6D6) δ0.45 (d, 1H), 1.43 (m, 3H), 1.79 (m, 1H), 1.99 (m, 1H), 3.24 (m, 1H), 3.43 (m, 1H), 3.76 (m, 2H), 4.24 (s, 2H), 4.60 (t, 1H), 6.35 (m, 1H), 6.43 (dd, 1H), 6.54 (dd, 1H), 6.8 (m, 2H), 6.9-7.0 (m, 7H), 7.15 (d, 1H).

1. customThe cooled reaction mixture
2. washwashed with water and brine
3. dry with materialThe organic layer was dried (MgSO4)
4. customevaporated to an oil
5. customPurification by flash chromatography on silica gel eluting with 15% ethyl acetate in hexane
6. customgave an oil which
7. customdried in vacuo