Tetrahedron letters

New route to the synthesis of the indolo [7, 6-g] indole (“bis (pyrrolo) naphthalene”) system starting from 1, 5-dihydroxynaphthalene

J Sołoducho

Index: Soloducho, Jadwiga Tetrahedron Letters, 1999 , vol. 40, # 12 p. 2429 - 2430

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Citation Number: 19

Abstract

A short and convenient route for the synthesis of indolo [7, 6-g] indole derivatives starting from dihydroxynaphthalene is described. 1, 5-Dihydroxynaphthalene (1) after alkylation, nitration and reduction gave 4, 8-diamino-1, 5-dibutoxynaphthalene (4). After reaction with