Abstract
The α,β‐dibromo ethers 2, in situ generated from the vinyl ethers 1 and bromine, react with the allylsilanes 3 in the presence of ZnCl2 to give the β‐bromo ethers 4. Treatment of 4 with Na in diethyl ether yields 1,4‐dienes 5 in 62–79% overall yield.
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