Title:
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Direct Observation of Aryl Gold(I) Carbenes that Undergo Cyclopropanation, CH Insertion, and Dimerization Reactions
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Author:
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García-Morales, Cristina; Pei, Xiao-Li; Sarria Toro, Juan M.; Echavarren, Antonio M.
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Abstract:
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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 CH 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. |
Publication date:
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2019-01-15 |
Subject(s):
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54 |
Rights:
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L'accés als continguts d'aquest document queda condicionat a l'acceptació de les condicions d'ús establertes per la següent llicència Creative Commons:http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Pages:
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3957 p. |
Document type:
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Article Article - Accepted version |
DOI:
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10.1002/anie.201814577
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