Synthesis of benz[f]indole-4,9-diones via acetylenic derivatives of 1,4-naphthoquinone
作者:Mark S. Shvartsberg、Ekaterina A. Kolodina、Nadezhda I. Lebedeva、Lidiya G. Fedenok
DOI:10.1016/j.tetlet.2009.09.110
日期:2009.12
A synthetic route to benz[f]indole-4,9-diones from 1,4-naphthoquinone is described. Effective methods for cross-coupling of 3-acetylamino-2-bromo-1,4-naphthoquinone with terminal acetylenes and cyclization of the resulting 3-acetylamino-2-alkynyl-1,4-naphthoquinones are developed. (C) 2009 Elsevier Ltd. All rights reserved.