Rhodium‐Catalyzed Cascade Reactions of Dienynes Leading to Substituted Dihydronaphthalenes and Naphthalenes

Five in one : Catalytic cascade reactions of dienynes catalyzed by cationic rhodium(I)–binap complexes lead to the formation of 1,2‐dihydronaphthalenes, naphthalenes, and 1,4‐dihydronaphthalenes. These cascade reactions involve up to five fundamentally different transformations, including the catalytic enantioselective carboformylation of alkenes with aldehydes or the cycloisomerization of enallenes.