Synthesis 2017; 49(07): 1555-1560
DOI: 10.1055/s-0036-1588667
paper
© Georg Thieme Verlag Stuttgart · New York

A Regioselective and Convergent Paired Electrochemical Synthesis of N,N′-Diphenyl-3-sulfonyl-[1,1′-biphenyl]-4,4′-diamines

Mahnaz Sharafi-Kolkeshvandi
a   Department of Chemistry, Faculty of Sciences, University of Kurdistan, P.O. Box 66315-416, Sanandaj, Iran   eMail: fnikpour@uok.ac.ir   eMail: farzad_nikpour@yahoo.com
,
Davood Nematollahi
b   Faculty of Chemistry, Bu-Ali-Sina University, P.O. Box 65174, Hamedan, Iran
,
Farzad Nikpour*
a   Department of Chemistry, Faculty of Sciences, University of Kurdistan, P.O. Box 66315-416, Sanandaj, Iran   eMail: fnikpour@uok.ac.ir   eMail: farzad_nikpour@yahoo.com
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Publikationsverlauf

Received: 07. September 2016

Accepted after revision: 11. November 2016

Publikationsdatum:
13. Dezember 2016 (online)


Abstract

A regioselective synthesis of N,N′-diphenyl-3-sulfonyl-[1,1′-biphenyl]-4,4′-diamine derivatives is carried out by anodic oxidation of N,N′-diphenylbenzidine in the presence of sulfinic acids as nucleophiles via a convergent paired electrochemical process. The sulfonylated aromatic amine products are obtained under mild reaction conditions with high yields, high current efficiency and atom economy.

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