Abstract
A green, practical and efficient iron-catalyzed, base free cross-coupling reaction of non-activated secondary alkyl halides with the alkynes Grignard reagent has been developed to afford a variety of alkyl alkynes in high yields, using iron(III) chlorides as catalyst. This approach is quick and easy to operate. It exhibits promising in industry since utilizing the low-cost iron as a catalyst instead of expensive palladium or nickel.
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