C(sp3)−H bond activation by vinylidene gold(I) complexes: a concerted asynchronous or stepwise process?

A detailed analysis of the C(sp3)−H activation process by vinylidene AuI complexes is described based on an intrinsic bond orbital analysis. Based on our analysis this event can be divided into three phases: (i) hydride transfer, (ii) C−C bond formation, and (iii) σ to π rearrangement of the lone pa...

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Bibliographic Details
Main Authors: Klein, Johannes E. M. N. (Author) , Nunes dos Santos Comprido, Laura (Author) , Hashmi, A. Stephen K. (Author)
Format: Article (Journal)
Language:English
Published: 2017
In: Chemistry - a European journal
Year: 2017, Volume: 23, Issue: 63, Pages: 16097-16103
ISSN:1521-3765
DOI:10.1002/chem.201703815
Online Access:Verlag, Volltext: http://dx.doi.org/10.1002/chem.201703815
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/chem.201703815
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Author Notes:Johannes E.M.N. Klein, Gerald Knizia, Laura Nunes dos Santos Comprido, Johannes Kästner and A. Stephen K. Hashmi
Description
Summary:A detailed analysis of the C(sp3)−H activation process by vinylidene AuI complexes is described based on an intrinsic bond orbital analysis. Based on our analysis this event can be divided into three phases: (i) hydride transfer, (ii) C−C bond formation, and (iii) σ to π rearrangement of the lone pair coordinated to Au. Small perturbations of the system lead to either a concerted asynchronous reaction, or a stepwise reaction featuring an intermediate with a C-H-C three-centre two-electron (3c-2e) bond. The role of π-donating substituents is highlighted and provides a way of controlling reactions of this type in future experimental studies.
Item Description:Version of record online: October 19, 2017
Gesehen am 28.06.2018
Im Titel ist die Zahl 3 als Hochzahl dargestellt
Physical Description:Online Resource
ISSN:1521-3765
DOI:10.1002/chem.201703815