Aromatic nucleophilic substitution on Cr (CO) 3-complexed halogenoarenes: a new synthesis of O-aryloximes and their cyclization to benzofurans

…, P Del Buttero, E Licandro, S Maiorana

Index: Alemagna, Andreina; Baldoli, Clara; Buttero, Paola Del; Licandro, Emanuela; Maiorana, Stefano Journal of the Chemical Society, Chemical Communications, 1985 , # 7 p. 417 - 418

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Citation Number: 16

Abstract

Although there are a limited number of examples, 0-arylated hydroxylamines and oximes are of interest since the oximes are starting materials in the synthesis of benzofurans via a rearrangement analogous to the Fischer indole synthesis.' 0-Arylhydroxylamines, provided they are stable, are usually obtained by hydrolysis of 0-aryloximes, which in turn are prepared by arylation of oximes or their sodium salts. In the early stages of our work the only arylation methods available ...