ZrCl2(eta-C5Me5)(2)-AlHCl2 center dot(THF)(2): efficient hydroalumination of terminal alkynes and cross-coupling of the derived alanes

[摘要]：Stabilized AlHCl2 center dot(THF)(2) hydroaluminates RC CH with exceptional chemo-, regio- and stereoselectivity under efficient ZrCl2(eta-C5Me5)(2) catalysis (2-5 mol%). The resulting vinyl alanes undergo palladium cross-coupling with a wide range of sp(2) electrophiles (aryl, hetero-aryl and vinyl halides/pseudohalides) in good to excellent yields.

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