Abstract
AbstractSubstituted maleic anhydrides function as synthetic equivalents of alkynes in a rhodium(III)‐catalyzed reaction with 1,6‐diynes to achieve a formal [2+2+2] cyclotrimerization. This approach is useful for reactions involving alkynes with low boiling points or severe ring strain. Hard‐to‐access [2+2+2] cycloadducts are available through this new cycloaddition strategy by employing easy‐to‐handle alkyne equivalents.
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