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Carmen Martín, Francisco Molina, Dr. Eleuterio Alvarez and Prof. Tomás R. Belderrain Stable N-Heterocyclic Carbene (NHC)–Palladium(0) Complexes as Active Catalysts for Olefin Cyclopropanation Reactions with Ethyl Diazoacetate Chemistry - A European Journal 17

Article first published online: 2 DEC 2011 | DOI: 10.1002/chem.201102900

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The Pd0/PdIIdilemma: Several [(NHC)Pd0] complexes are shown to act as very active catalysts in the olefin cyclopropanation reaction with ethyl diazoacetate as the carbene source. A mechanism (see scheme) for this transformation is proposed, in which the same catalytic species is responsible of the decomposition of EDA and subsequent cyclopropanation independent of the catalyst precursor.

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