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An unexpected route toward the synthesis of spiro-benzobacridine-furan derivatives

, , , , and . TETRAHEDRON LETTERS, 53 (31): 4018-4021 (August 2012)
DOI: {10.1016/j.tetlet.2012.05.107}

Abstract

A facile and straightforward procedure for the synthesis of spiro-benzobacridine-6,2'-furan derivatives via the reaction between benzobacridine-6,11-dione, electron-deficient acetylenic compounds, and an isocyanide is described. The benzobacridine-6,11-dione is obtained from the reaction between 2-(aminomethyl)aniline and 2-hydroxynaphthalene-1,4-dione via an unexpected reaction pathway. The products are synthesized in medium to high yields and no complicated purification is required. (C) 2012 Elsevier Ltd. All rights reserved.

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