Rhodium(III)‐Catalyzed [2+2+2] Cyclotrimerization of Diynes with Maleic Anhydrides as Alkyne Equivalents
作者： Takanori Matsuda , Kentaro Suzuki
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摘要: Substituted maleic anhydrides function as synthetic equivalents of alkynes in a rhodium(III)-catalyzed reaction with 1,6-diynes to achieve formal [2+2+2] cyclotrimerization. This approach is useful for reactions involving low boiling points or severe ring strain. Hard-to-access cycloadducts are available through this new cycloaddition strategy by employing easy-to-handle alkyne equivalents.
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