42207-71-6Relevant academic research and scientific papers
Vicinal acetylenic derivatives of 2-amino-1,4-naphthoquinone as key precursors of heterocyclic quinones
Shvartsberg,Kolodina,Lebedeva,Fedenok
, p. 582 - 588 (2013/05/09)
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.
Synthesis of benz[f]indole-4,9-diones via acetylenic derivatives of 1,4-naphthoquinone
Shvartsberg, Mark S.,Kolodina, Ekaterina A.,Lebedeva, Nadezhda I.,Fedenok, Lidiya G.
scheme or table, p. 6769 - 6771 (2010/04/27)
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.
New dyes based on 3-aryl-benzo- and -naphtho-1,4-thiazines
MacKenzie, Neil E.,Thomson, Ronald H.,Greenhalgh, Colin W.
, p. 2923 - 2932 (2007/10/02)
3-Aryl-2H-1,4-benzothiazines have been converted into cyanine dyes by condensing their hydroperchlorates with aldehydes, and into azo-compounds by coupling with reactive diazonium salts. The azo-compounds were also obtained by condensing arylglyoxal hydra
