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Article Dans Une Revue Tetrahedron Letters Année : 2018

Cobalt-catalyzed versus uncatalyzed intramolecular Diels-Alder cycloadditions

Résumé

The intramolecular [4+2] cycloadditions of dienynes was investigated using cobalt-based catalysts. Substrates without substitution on alkyne moiety were found to react under thermal activation. The use of a cobalt salt as catalyst made reactions cleaner by limiting the formation of byproducts. Cycloadditions with dienynes possessing a substituent on the alkyne pattern occurred only in presence of a cobalt catalyst which displayed a moderate to good activity depending on the substrate patterns.
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hal-01768362 , version 1 (18-04-2018)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Bohdan Biletskyi, Alphonse Tenaglia, Hervé Clavier. Cobalt-catalyzed versus uncatalyzed intramolecular Diels-Alder cycloadditions. Tetrahedron Letters, 2018, 59 (2), pp.103 - 107. ⟨10.1016/j.tetlet.2017.11.052⟩. ⟨hal-01768362⟩

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