6935-29-1Relevant articles and documents
Bromination of quinoxaline and derivatives: Effective synthesis of some new brominated quinoxalines
U?ar, Sefa,E?siz, Sel?uk,Da?tan, Arif
, p. 1618 - 1632 (2017/03/08)
The synthesis of brominated quinoxaline derivatives starting from several kinds of quinoxaline by different bromination strategies was studied. First the synthesis of some brominated quinoxalines was accomplished along with the development of an alternative and effective synthesis of some known compounds. A new, clean, and effective synthetic method for selective reduction of quinoxaline to 1,2,3,4-tetrahydroquinoxaline was also developed. The products obtained were characterized by means of NMR spectroscopy, elemental analyses, and mass spectrometry.
PARTIAL REDUCTION OF QUINOXALINE 1,4-DIOXIDE DERIVATIVES WITH L-ASCORBIC ACID
Novacek, Libor,Nechvatal, Miloslav
, p. 1302 - 1306 (2007/10/02)
Partial reduction of quinoxaline 1,4-dioxide derivatives with L-ascorbic acid has been elaborated.Quinoxaline 1,4-dioxide, 2,3-dimethylquinoxaline 1,4-dioxide, 2-methylquinoxaline 1,4-dioxide and 2-(N-(2-hydroxyethyl)carbamoyl)-3-methylquinoxaline 1,4-dioxide afforded monoxides.In the monomethyl derivatives the more distant N-O bond is reduced.In addition to the monoxide, quinoxaline 1,4-dioxide afforded small amount of quinoxaline.Structures of all the compounds have been confirmed by 1H and 13C NMR spectroscopy.
