Cyclobutene vs 1,3-Diene Formation in the Gold-Catalyzed Reaction of Alkynes with Alkenes: The Complete Mechanistic Picture

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Elena de Orbe, M.; Amenós, Laura; Kirillova, Mariia S.; Wang, Yahui; López-Carrillo, Verónica; Maseras, Feliu; Echavarren, Antonio M.;
(2017)

The intermolecular gold­(I)-catalyzed reaction between arylalkynes and alkenes leads to cyclobutenes by a [2 + 2] cycloaddition, which takes place stepwise, first by formation of cyclopropyl gold­(I) carbenes, followed by a ring expansion. However, 1,3-butad... View more
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