Transition metal-catalyzed translocation annulation of an alkyne with a nucleophile involving a functional group migration is becoming a fascinating hot-topic because this method operates in an atom-economical manner for constructing complicated heterocycles in one-step. 1–8 Despite considerable progress in the field, most notably from the use of a wide range of transition-metal catalysts, such as Pd, 2 Pt, 3 Au, 4,5 In, 5 Rh 6 or W, 7 the identification of catalysts ...
