1051371-07-3Relevant academic research and scientific papers
Nature of the intermediates in gold(I)-catalyzed cyclizations of 1,5-enynes
Lopez-Carrillo, Veronica,Huguet, Nuria,Mosquera, Ungeles,Echavarren, Antonio M.
, p. 10972 - 10978 (2011/10/18)
The carbene or carbocationic nature of the intermediates in the gold-catalyzed cycloisomerization of 1,5-enynes can be revealed, depending on the ligands on the gold catalysts. Gold complexes with highly electron-donating ligands promote reactions that proceed via intermediates with carbene-like character, leading to products with a bicyclo[3.1.0]hexene skeleton. The intermediate cyclopropyl endo-gold carbenes formed in this cyclization have been trapped, for the first time, to give biscyclopropane derivatives in a reaction that proceeds in a concerted fashion, according to DFT calculations.
Gold(I)-catalyzed intermolecular addition of carbon nucleophiles to 1,5- and 1,6-enynes
Amijs, Catelijne H. M.,Lopez-Carrillo, Veronica,Raducan, Mihai,Perez-Galan, Patricia,Ferrer, Catalina,Echavarren, Antonio M.
, p. 7721 - 7730 (2008/12/22)
(Chemical Equation Presented) Gold(I)-catalyzed addition of carbon nucleophiles to 1,6-enynes gives two different type of products by reaction at the cyclopropane or at the carbene carbons of the intermediate cyclopropyl gold carbenes. The 5-exo-dig cycli
