A palladium-catalyzed and norbornene-mediated Catellanireaction was developed through ortho-acylation and ipso-alkynylation for the aryl iodides. Acyl chlorides were used as acylation reagents and phenylpropiolic acids were used as termination reagents respectively in this transformation. As a result, the reactivity of these three different compounds matched well and this unreported combination could