Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/185254
Title: | Tandem Mn-I Exchange and Homocoupling Processes Mediated by a Synergistically Operative Lithium Manganate |
Author: | Uzelac, Marina Mastropierro, Pasquale Tullio, Marco Borilović, Ivana Tarres, Marius Kennedy, Alan R. Aromí Bedmar, Guillem Hevia, Eva |
Keywords: | Liti Manganès Lithium Manganese |
Issue Date: | 22-Oct-2020 |
Publisher: | Wiley-VCH |
Abstract: | Pairing lithium and manganese(II) to form lithium manganate [Li2Mn(CH2SiMe3)4] enables the efficient direct Mn-I exchange of aryliodides, affording transient (aryl)lithium manganate intermediates which in turn undergo spontaneous C@C homocoupling at room temperature to furnish symmetrical (bis)aryls in good yields under mild reaction conditions. The combination of EPR with X-ray crystallographic studies has revealed the mixed Li/Mn constitution of the organometallic intermediates involved in these reactions, including the homocoupling step which had previously been thought to occur via a single-metal Mn aryl species. These studies show Li and Mn working together in a synergistic manner to facilitate both the Mn-I exchange and the C@C bond-forming steps. Both steps are carefully synchronized, with the concomitant generation of the alkyliodide ICH2SiMe3 during the Mn-I exchange being essential to the aryl homocoupling process, wherein it serves as an in situ generated oxidant. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1002/anie.202013153 |
It is part of: | Angewandte Chemie-International Edition, 2020, vol. 60, num. 6, p. 3247-3253 |
URI: | http://hdl.handle.net/2445/185254 |
Related resource: | https://doi.org/10.1002/anie.202013153 |
ISSN: | 1433-7851 |
Appears in Collections: | Articles publicats en revistes (Institut de Nanociència i Nanotecnologia (IN2UB)) Articles publicats en revistes (Química Inorgànica i Orgànica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
715692.pdf | 959.05 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.