A stereospecific and stereoselective copper promoted coupling of vinyl pinacol boronate esters and alcohols allows the synthesis of enol ethers in very good yields is compatible with various functional groups and occurs at room temperature. The beta chlorophenetole derivatives prepared were. Certain aromatically substituted phenyl vinyl ethers were prepared by means of a two step synthesis involving first the synthesis of the corresponding beta chlorophenetole derivative and subsequently treating this compound with flake potassium hydroxide to yield the vinyl ether.
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