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Observations on transition metal free biaryl coupling: potassium tert-butoxide alone promotes the reaction without diamine or phenanthroline catalysts

Cuthbertson, J; Gray, VJ; Wilden, JD; (2014) Observations on transition metal free biaryl coupling: potassium tert-butoxide alone promotes the reaction without diamine or phenanthroline catalysts. Chemical Communications , 50 (20) pp. 2575-2578. 10.1039/c3cc49019j. Green open access

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Abstract

Biaryl coupling (often labelled 'C-H activation') of aromatic systems can be achieved by potassium tert-butoxide alone in the absence of any amine or bipyridine catalyst (1,10-phenanthroline or N,N'-dimethylethylenediamine being the most common), previously reported to be essential. Various mechanistic studies and observations are presented which suggest that when 1,10-phenanthroline is employed as the catalyst, the alkoxide is destroyed almost immediately.

Type: Article
Title: Observations on transition metal free biaryl coupling: potassium tert-butoxide alone promotes the reaction without diamine or phenanthroline catalysts
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1039/c3cc49019j
Publisher version: http://dx.doi.org/10.1039/c3cc49019j
Language: English
Additional information: This journal is © The Royal Society of Chemistry 2014.This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Butanols, Catalysis, Diamines, Magnetic Resonance Spectroscopy, Molecular Structure, Phenanthrolines, Transition Elements
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1474728
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