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4-Substituted Aryl Bromides Coupling with 4-Methoxybenzene-1-thiol by Means of Copper Catalysts

J. Jampílek, M. Doležal, J. Kuneš, I. Raich, and F. Liška

Research Centre LN00B125, Faculty of Pharmacy in Hradec Králové

 

E-mail: jamp@faf.cuni.cz

Received: 3 February 2004

Abstract: Synthesis of diaryl sulfides via nucleophilic coupling of the 4-substituted aryl bromides with 4- methoxybenzene-1-thiol is described. A radical-ionic mechanism of this coupling, carried out in the presence of heterogeneous copper catalysts, has been proposed. The reactivity of aryl bromides is correlated to the calculated values of electronic deficiency in position C-4 of the aromatic ring. The prepared compounds should be used as the leading building blocks of quinlukast higher homologues.

Full paper in Portable Document Format: 593a182.pdf

 

Chemical Papers 59 (3) 182–186 (2005)

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