Isobutyl chloride → (Z)-1,1,1-trifluoro-4-phenyl-3-butene-2-ol

Beteiligte Stoffe

Reaktionsschritte

In 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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