Magnesium → 1-(2-Fluoro-3-(4-fluoro-3-phenoxy-phenyl)prop-1-enyl)-1-(4-trifluoromethoxy phenyl) cyclopropane

Participants

Reaction Steps

The method of Example 25 was repeated using a Grignard reagent, prepared from 4-fluoro-3-phenoxyphenyl bromide (0.27 g), tetrahydrofuran (2 ml) and magnesium (21 mg) and 1-(3-acetoxy-2-fluoroprop-1-enyl)-1-(4-trifluoro-methoxyphenyl) cyclopropane (Example 19) (0.1 g). The residue after evaporation was purified by preparative thin layer chromatography (solvent: diethyl ether/hexane; 1:9) and then preparative high performance liquid chromatography (column: C18; solvent: methanol; flow rate: 3 ml/min) to afford 1-(2-fluoro-3-(4-fluoro-3-phenoxy-phenyl)prop-1-enyl)-1-(4-trifluoromethoxy phenyl) cyclopropane (29.4 mg, 21%).

Provenance & Evidence