Vicinal acetylenic derivatives of 2-amino-1,4-naphthoquinone as key precursors of heterocyclic quinones
作者:M. S. Shvartsberg、E. A. Kolodina、N. I. Lebedeva、L. G. Fedenok
DOI:10.1007/s11172-012-0084-8
日期:2012.3
The Pd-catalyzed reaction between 3-acetylamino-2-bromo-1,4-naphthoquinones and CuI acetylides prepared in situ gave 3-acetylamino-2-alkynyl-1,4-naphthoquinones, which were transformed into benz[f]indole-4,9-dione and benzo[g]quinoline-5,10-dione derivatives.
Metal-Free C–H Sulfamidation of 1,4-Naphthoquinone in Water
作者:Pallaba Ganjan Dalai、Swayamprava Swain、Soumya Mohapatra、Niranjan Panda
DOI:10.1021/acs.joc.3c01409
日期:2023.10.6
Direct sulfamidation of 1,4-naphthoquinones using N-methoxy sulfonamides under metal-free conditions in water was developed. Base-mediated nucleophilic addition of N-methoxy sulfonamides, followed by N–O bond cleavage allowed the formation of enesulfonamides. Further, the synthesis of pyrrolonaphthoquinones proved the practicability of the current approach.
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.
MACKENZIE N. E.; THOMSON R. H.; GREENHAIGH C. W., J. CHEM. SOC. PERKIN TRANS., PART 1, 1980, NO 12, 2923-2932
作者:MACKENZIE N. E.、 THOMSON R. H.、 GREENHAIGH C. W.