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. 2014 Aug 11;20(33):10255-9.
doi: 10.1002/chem.201402473. Epub 2014 Jul 17.

Rhodium-catalyzed intramolecular [3+2+2] cycloadditions between alkylidenecyclopropanes, alkynes, and alkenes

Marisel Araya  1 , Moisés Gulías, Israel Fernández, Gaurav Bhargava, Luis Castedo, José Luis Mascareñas, Fernando López
Affiliations

Rhodium-catalyzed intramolecular [3+2+2] cycloadditions between alkylidenecyclopropanes, alkynes, and alkenes

Marisel Araya et al. Chemistry. .

Abstract

A Rh-catalyzed intramolecular [3+2+2] cycloaddition is reported. The cycloaddition affords synthetically relevant 5,7,5-fused tricyclic systems of type 2 from readily available dienyne precursors. The transformation takes place with moderate or good yields, high diastereoselectivity, and total chemoselectivity.

Keywords: alkylidenecyclopropane; carbocycles; catalysis; cycloadditions; rhodium.

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