AU-DOUBLEC-H

Gold-catalysed dehydrogenative cross-coupling of arenes

Coordinatore	THE UNIVERSITY OF MANCHESTER    more  Organization address address: OXFORD ROAD city: MANCHESTER postcode: M13 9PL contact info Titolo: Dr. Nome: Darien Cognome: Rozentals Email: send email Telefono: +44 161 275 1323
Nazionalità Coordinatore	United Kingdom [UK]
Totale costo	221˙606 €
EC contributo	221˙606 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2013-IEF
Funding Scheme	MC-IEF
Anno di inizio	2014
Periodo (anno-mese-giorno)	2014-04-01   -   2016-03-31

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	THE UNIVERSITY OF MANCHESTER  Organization address address: OXFORD ROAD city: MANCHESTER postcode: M13 9PL contact info Titolo: Dr. Nome: Darien Cognome: Rozentals Email: send email Telefono: +44 161 275 1323	UK (MANCHESTER)	coordinator	221˙606.40
2	QUEEN MARY UNIVERSITY OF LONDON  Organization address address: 327 MILE END ROAD city: LONDON postcode: E1 4NS contact info Titolo: Dr. Nome: Igor Cognome: Larrosa Email: send email Telefono: +44 20 7882 8404	UK (LONDON)	participant	0.00

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 Obiettivo del progetto (Objective)

'The usually inert carbon-hydrogen (C-H) bond is present in nearly all synthetic and naturally occurring organic molecules. The modification of organic compounds through the direct functionalisation of C-H bonds is however a highly challenging process due to their poor reactivity and the difficulty of discriminating between the many C-H bonds present in most molecules. Nevertheless, catalytic C-H activation has emerged as an increasingly promising strategy for simple and atom-economical cross-coupling of organic compounds. Compared to current methodologies that require the use of pre-functionalized starting materials, the development of general and efficient catalytic C-H activation systems could significantly reduce the amount of waste generated in synthetic reactions by (1) using readily available starting materials (2) shortening reaction sequences and (3) avoiding the stoichiometric generation of metal salts default to synthesis that rely on the use of pre-functionalised building blocks. This project aims at the development of catalytic systems for the formation of biaryls by the direct coupling of two arenes via double C-H activation. Such arylations require the selective breaking of two distinct C-H bonds followed by the subsequent C-C bond formaton. We will make use of the unique ability of gold complexes to discriminate between C-H bonds in different electronic environments depending on the oxidation state of the gold catalyst. Thus, we will develop catalytic cross-coupling processes proceeding via (1) gold(I) mediated C-H activation of electron poor arenes, (2) oxidation of the catalyst to gold(III) followed by gold(III) mediated C-H activation of electron rich arenes, and (3) C-C bond formation furnishing biaryl compounds. The described proposal will significantly contribute to the current state of the art cross-coupling methodologies and offer a direct and green approach to the synthesis of biaryl motifs.'