C([Mg]Cl)C(C)C.C(Cl)C(C)C.[Mg].[F:13][C:14]([F:26])([F:25])[CH:15]([OH:24])[C:16]#[C:17][C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>CCOCC.[CH-]1[C-]=[C-][C-]=[C-]1.[CH-]1[C-]=[C-][C-]=[C-]1.Cl[Ti]Cl>[F:13][C:14]([F:25])([F:26])[CH:15]([OH:24])/[CH:16]=[CH:17]\[C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][CH:23]=1In an isobutylmagnesium chloride solution that was prepared by reacting isobutyl chloride (2.34 g, 25 mmol) and magnesium (0.66 g, 27 mmol) in dry ether (30 ml) at 0° C., dichlorobis(π-cyclopentadienyl)titanium (0.14 g, 0.56 mmol) and 1,1,1,-trifluoro-4-phenyl-3-butyne-2-ol (2g, 10 mmol) were slowly added at 0° C. After 1 hour agitation at the same temperature, the reaction mixture was treated by a method similar to the one in the above Examples to obtain (Z)-1,1,1-trifluoro-4-phenyl-3-butene-2-ol (b.p.: 78°-80° C./3 mmHg) at a yield of 53%. The above product gave the following analytical data:
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