Development of Efficient Synthetic Method of Oligoenes via Selective Linear Oligomerization of Alkynes

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Highly selective synthesis of tri-and tetraene derivatives as single products was achieved via linear oligomerization of different alkynes via a zirconocene and copper-mediated reaction. And, interesting 7-membered-ring formation of a triene derivatives obtained from the above-mentioned reaction was found. These reactions were applicable for variously substituted substrates.