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The ruthenium‐catalyzed alkenylation of arenes with alkynes or alkenes has been achieved by using 1,2,3‐triazole as the directing group for the C–H activation. With [Ru(p‐cymene)Cl2]2 as the catalyst and Cu(OAc)2·H2O and AgSbF6 as additives, various triazole‐substituted arenes reacted readily with a range of internal alkynes or terminal alkenes to afford di‐ or monoalkenylated arenes with high regioselectivity...
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