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Abstract
A Pd-catalyzed syn-1,2-arylmethylation of internal alkynes (ynamides/ yne-acetates) is described. The readily available and bench stable coupling partners iodo-arenes, and methyl boronic acid are successfully being used to access the methyl containing tetra substituted olefins; notably, the transformation is regio as well stereoselective. The scope is broad (52 examples), showing excellent functional-group tolerance. Finally, synthetic manifestations of the products were also demonstrated.
