Abstract
AbstractThe asymmetric 1,4‐difunctionalization of 1,3‐enynes represents a concise and highly efficient strategy for the preparation of chiral allenes. Herein, we developed a copper‐catalyzed three‐component asymmetric radical 1,4‐aryl/alkynylation of 1,3‐enynes by employing inexpensive, readily available, and highly reactive diaryliodonium salts as precursors to generate aryl radicals. The success of this reaction relied on the use of iminophenyl oxazolinylphenylamines (IPOPA) as chiral ligands. The reaction exhibited good compatibility with various alkynes, 1,3‐enynes, and diaryliodonium salts, providing an effective method for constructing highly enantioselective tetrasubstituted axially chiral allene compounds.
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