2-(Trifluoromethyl)oxirane → 3-[(3-Phenoxyphenyl)[[3-(2-hydroxy-3,3,3-trifluoro-n-propoxy)-phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol

Participants

Reaction Conditions

Reaction Steps

The N-(3-phenoxyphenyl)[[3-hydroxyphenyl]methyl]amine (400 mg, 1.35 mmol) product from EX-655A and 1,1,1-trifluoro-2,3-epoxypropane (348 mg, 3 mmol) were placed in a sealed vial, then stirred and heated to 95° C. for 15 h under an atmosphere of nitrogen. The vial was cooled, and more 1,1,1-trifluoro-2,3-epoxypropane (112 mg, 1 mmol) was added. The vial was sealed, then stirred and heated to 95° C. for a further 20 h under an atmosphere of nitrogen. The crude product was purified by flash column chromatography on silica gel eluting with ethyl acetate in hexane (1:6) to give 518 mg (77%) of the desired 3-[(3-phenoxyphenyl)[[3-(2-hydroxy-3,3,3-trifluoro-n-propoxy)-phenyl]methyl]amino]-1,1,1-trifluoro-2-propanol product as a light amber oil, 98% pure by HPLC analysis. 1H NMR (CDCl3) δ 7.20-7.32 (m, 3H), 7.14 (t, 1H), 7.07 (t, 1H), 6.95 (d, 2H), 6.80 (m, 2H), 6.74 (s, 1H), 6.48 (dd, 1H), 6.38 (m, 2H), 4.59 (ABq, 2H), 4.31 (m, 1H), 4.18 (dd, 1H), 4.10 (dd, 1H), 3.83 (dd, 1H), 3.54 (dd, 1H), 2.92 (d, 1H), 2.61 (d, 1H). 19F NMR (CDCl3) δ −78.0 (d, 3F), −79.2 (d, 3F). HRMS calcd. for C25H23F6 NO4: 516.1611 [M+H]+, found: 516.1618.

Provenance & Evidence