Allowing the direct interaction of N-aryl α-diimines with a high valent metal chloride: one-pot WCl6-promoted formation of quinoxalinium salts

Niccolò Bartalucci; Marco Bortoluzzi; Tiziana Funaioli; Fabio Marchetti; Guido Pampaloni; Stefano Zacchini

doi:10.1039/C7DT03226A

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Allowing the direct interaction of N-aryl α-diimines with a high valent metal chloride: one-pot WCl₆-promoted formation of quinoxalinium salts†

Niccolò Bartalucci,^a Marco Bortoluzzi,^b Tiziana Funaioli,^a Fabio Marchetti,

*^a Guido Pampaloni^a and Stefano Zacchini

Author affiliations

* Corresponding authors

^a University of Pisa, Dipartimento di Chimica e Chimica Industriale, Via Moruzzi 13, I-56124 Pisa, Italy
E-mail: fabio.marchetti1974@ unipi.it
Web: http://www.dcci.unipi.it/fabio-marchetti.html
Tel: +39 050 2219245

^b University Ca’ Foscari Venezia, Dipartimento di Scienze Molecolari e Nanosistemi, Via Torino 155, I-30170 Mestre, VE, Italy

^c University of Bologna, Dipartimento di Chimica Industriale “Toso Montanari”, Viale Risorgimento 4, I-40136 Bologna, Italy

Abstract

The full potential of a high valent metal chloride as both a chlorinating and an oxidative agent was explored by allowing WCl₆ to react with N-(2,6-diisopropylphenyl) α-diimines, in CH₂Cl₂ at room temperature. These α-diimines underwent unprecedented conversion to quinoxalinium cations via intramolecular C–N coupling.

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Article information

DOI: https://doi.org/10.1039/C7DT03226A
Article type: Communication
Submitted: 31 Aug 2017
Accepted: 14 Sep 2017
First published: 21 Sep 2017

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Dalton Trans., 2017,46, 12780-12784

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Allowing the direct interaction of N-aryl α-diimines with a high valent metal chloride: one-pot WCl₆-promoted formation of quinoxalinium salts

N. Bartalucci, M. Bortoluzzi, T. Funaioli, F. Marchetti, G. Pampaloni and S. Zacchini, Dalton Trans., 2017, 46, 12780 DOI: 10.1039/C7DT03226A

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Dalton Transactions