摘要:
A facile and straightforward procedure for the synthesis of spiro-benzo[b]acridine-6,2'-furan derivatives via the reaction between benzo[b]acridine-6,11-dione, electron-deficient acetylenic compounds, and an isocyanide is described. The benzo[b]acridine-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.