2011•South African Journal of ChemistryOpen access
Synthesis of 9H-indeno [1, 2-b] pyrazine and 11H-indeno [1, 2-b] quinoxaline derivatives in one-step reaction from 2-bromo-4-chloro-1-indanone
S Jasouri, Jabbar Khalafy, Mohammad Badali, Rolf H. Prager
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Abstract
The reaction of 2-bromo-4-chloro-1-indanone with 2,3-diaminomaleonitrile, benzene-1,2-diamine and 4-methylbenzene-1,2-diamine in glacial acetic acid gave 8-chloro-9 H -indeno[1,2- b ]pyrazine-2,3-dicarbonitrile, 1-chloro-11 H -indeno[1,2- b ]quinoxaline and 1-chloro-7-methyl-11 H -indeno[1,2- b ]quinoxaline, respectively, in good yield. Keywords: 2-bromo-4-chloro-1-indanone, diaminopyridine, indeno[1,2- b ]quinoxaline, indeno[1,2- b ]pyrazine, debromination