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- Title
Direct Observation of Aryl Gold(I) Carbenes that Undergo Cyclopropanation, C−H Insertion, and Dimerization Reactions.
- Authors
García‐Morales, Cristina; Pei, Xiao‐Li; Sarria Toro, Juan M.; Echavarren, Antonio M.
- Abstract
Mesityl gold(I) carbenes lacking heteroatom stabilization or shielding ancillary ligands have been generated and spectroscopically characterized from chloro(mesityl)methylgold(I) carbenoids bearing JohnPhos‐type ligands by chloride abstraction with GaCl3. The aryl carbenes react with PPh3 and alkenes to give stable phosphonium ylides and cyclopropanes, respectively. Oxidation with pyridine N‐oxide and intermolecular C−H insertion to cyclohexane have also been observed. In the absence of nucleophiles, a bimolecular reaction, similar to that observed for other metal carbenes, leads to a symmetrical alkene.
- Subjects
GOLD compounds; ARYL group; CARBENES; CYCLOPROPANATION; CARBON-hydrogen bonds; DIMERIZATION
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 12, p3997
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201814577