Synthesis 2002(5): 0674-0680
DOI: 10.1055/s-2002-23546
PAPER
© Georg Thieme Verlag Stuttgart · New York

Base-mediated Reaction of Quaternary Ammonium Salts with Nitroarenes - Their Useful Functionalization via Vicarious Nucleophilic Substitution (VNS)

Andrzej Jończyk*, Anna Kowalkowska
Warsaw University of Technology, Faculty of Chemistry, Koszykowa 75, 00-662 Warszawa, Poland
Fax: +48(22)6282741; e-Mail: anjon@ch.pw.edu.pl;
Further Information

Publication History

Received 10 January 2002
Publication Date:
02 April 2002 (online)

Abstract

Ammonium ylides generated from ammonium salt 1a-e with a base react with derivatives of 3-nitropyridine 2a-c and 2-nitrothiophene (3) to form products of vicarious nucleophilic substitution (VNS) 7, 8, or 9 respectively. The products of VNS 10, 11, or 12 are also produced from the corresponding ammonium salts, a base and 4-chloro-nitrobenzene (4), nitrobenzene (5), or 1-nitronaphthalene (6), respectively. In a few products, an exchange of alkoxy group 7c or substitution of chlorine by alkoxyl 8a,b occured.