1000880-00-1Relevant articles and documents
Evaluation of the electronic properties of a carbodiphosphorane through gold catalysis
El-Hellani, Ahmad,Bour, Christophe,Gandon, Vincent
supporting information; experimental part, p. 1865 - 1870 (2011/10/13)
Carbodiphosphoranes [C(PR3)2] are divalent carbon(0) derivatives which can be used as ligands to form either M←C(PR 3)2 or (M)2← C(PR3)2 species. They were computationally predicted to be even stronger electron donors than N-heterocyclic carbenes. We have introduced hexaphenylcarbodiphosphorane [C(PPh3)2] for the first time in gold catalysis in order to validate this prediction by experimentation. Its mono- and digold complexes were compared to tris(2,4-di-tert-butylphenyl) phosphite, triphenylphosphine, and 1,3-bis(2,6-diisopropylphenyl)imidazol-2- ylidene in representative gold(I)-catalyzed transformations. The advantages and limitations of these ligands are discussed. Copyright
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
