Highly Selective Cobalt-Mediated [6 + 2] Cycloaddition of Cycloheptatriene and Allenes

Hervé Clavier (1) , Karel Le Jeune (1) , Innocenzo de Riggi (1) , Alphonse Tenaglia (1) , Gérard Buono (1)

1 ISM2 - Institut des Sciences Moléculaires de Marseille

[6 + 2] Cycloadditions between cycloheptatrienes with allenes have been investigated. Cobalt salts were found to promote this transformation efficiently. Moreover, this reaction was found to be highly selective since only one regioisomer was obtained with an excellent E/Z-selectivity.

Domaines: Chimie; Catalyse; Chimie organique

Hervé Clavier, Karel Le Jeune, Innocenzo de Riggi, Alphonse Tenaglia, Gérard Buono. Highly Selective Cobalt-Mediated [6 + 2] Cycloaddition of Cycloheptatriene and Allenes. Organic Letters, 2011, ⟨10.1021/ol102783x⟩. ⟨hal-01409682⟩