L. Moradi, M. Piltan, G. Abasi
May 1, 2014
Citations
0
Influential Citations
17
Citations
Journal
Helvetica Chimica Acta
Abstract
The reaction between a variety of o-phenylenediamines (=benzene-1,2-diamines), dialkyl acetylenedicarboxylates, and derivatives of nitrostyrene (=(E)-(2-nitroethenyl)benzene) in the presence of sulfamic acid (SA; H3NSO3) as catalyst led to the corresponding pyrrolo[1,2-a]quinoxaline-4(5H)-one derivatives in high yields.