Rapid and versatile access to (Z)‐trisubstituted olefins 2 and their cyclization into 4‐aryl‐2H‐chromenes 1 starting fromarylalkynes 3 is described. In a one‐pot fashion, alkynes 3 were first hydrated, then transformed into N‐tosylhydrazones, and finally coupled with ortho‐substituted aryl halides under palladium catalysis to give trisubstituted olefins 2 in good yields and very high to total Z selectivity