Regioselective cyclic cotrimerization of α, β-enones and alkynes by a nickel-aluminum catalyst system

S Ikeda, N Mori, Y Sato

Index: Ikeda; Mori; Sato Journal of the American Chemical Society, 1997 , vol. 119, # 20 p. 4779 - 4780

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Citation Number: 63

Abstract

We report here a new example of cyclic cotrimerization. The reaction of R, β-enones 1 (1 equiv) and alkynes 2 (2 equiv) proceeded smoothly in the presence of a nickel- organoaluminum catalyst system to give the corresponding cyclic adducts (reaction A in eq 1). Moreover, regioselective cotrimerization was observed in the reaction with 1-alkyne.