Guy Bertrand on Muck Rack

Guy Bertrand

Montreal
As seen in: Color Research & Application, Nature, Wiley Online Library, Journal of Chemical & Engineering Data, Royal Society of Chemistry, Cell Press, La Presse, Réseau des Sports (RDS), Chemistry World, Abbotsford News and
Journaliste sportif depuis 1982. J'ai passé par NTR et TQS avant d'arriver à RDS où j'ai passé 23 belles années. Maintenant à la pige!
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Articles

A Carbene-Stabilized Diphosphorus: A Triple-Bonded Diphosphorus (P≡P) and a Bis(phosphinidene) (P-P) Transfer Agent

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By Joseph Yoon, Mehdi Abdellaoui, Milan Gembicky, Guy Bertrand
| Royal Society of Chemistry Verified
A Carbene-Stabilized Diphosphorus: A Triple-Bonded Diphosphorus (P≡P) and a Bis(phosphinidene) (P-P) Transfer Agent The reaction of the N,N-diisopropyl bromoiminium salt with excess sodium phosphaethynolate (NaPCO) affords a diphospha-urea 2. Under blue light irradiation (450 nm), carbon monoxide is liberated affording the bis(carbene)P2 adduct 3.
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Ambiphilicity of Ring-Expanded N-Heterocyclic Carbenes

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By Victor Wang, Mehdi Abdellaoui, Rodolphe Jazzar, Guy Bertrand
| Royal Society of Chemistry Verified
Ambiphilicity of Ring-Expanded N-Heterocyclic Carbenes N-heterocyclic carbenes, such as imidazol-2-ylidenes and imidazolin-2-ylidenes, the popular class of singlet carbenes introduced by Arduengo in 1991 have not been shown to be ambiphilic owing to the two -withdrawing, -donating amino groups flanking the carbene centre. However, our experimental data suggest that ring-expanded N-heterocyclic carbenes (RE-NHCs), especially the seven and eight membered rings, are significantly ambiphilic.
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Mesoionic Carbene‐Catalyzed Formyl Alkylation of Aldehydes

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By Chang Liu, Zengyu Zhang, Liang-Liang Zhao, Guy Bertrand
| Wiley Online Library Verified
Graphical Abstract A metal-free protocol for the coupling reaction of aldehydes and alkyl halides was successfully developed with mesoionic carbenes (MICs) as catalysts. This versatile strategy delivers a large diversity of simple ketones as well as bio-active molecules by late-stage functionalization. Abstract Ketones are among the most useful functional groups in organic synthesis, and they are commonly encountered in a broad range of compounds with various applications.
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