Facile Construction of an α-(1-Cyclopentenyl)ketone Core by Ruthenium-catalyzed Hydrative Cyclization of 1,6-Allenyne: Total Synthesis of (+)-Myomontanone

Cobalt-Catalyzed Chemo- and Stereoselective Arylative Carbocyclization of 1,6-Allenynes

“…Recently, much attention has been drawn to the carbocyclization reactions of allenynes in combination with additional coupling partners, and this reaction type is of great benefit to the development of new carbocyclization modes and structural diversity of cyclic products. In this context, a range of cascade carbocyclization reactions, such as arylative cyclization, hydrative cyclization, borylative cyclization, and polycyclization reactions, have been gradually discovered. As for arylative carbocyclization of allenynes, merely a few examples have been achieved by means of noble transition metal catalysts (Pd and Rh) .…”