6-Amino-8-chloro-2,3 -quinoxalinedione

Amino-7-chloro-2,3(l//,4//)-quinoxalinedione (116) and 2,5-dimethoxytetra-hydrofuran (117) gave 6-chloro-7-(pyrrol-l-yl)-2,3-(l//,4//)-quinoxaline-... [Pg.278]

Amino-7-chloro-2-quinoxalinecarboxylic acid 6-Amino-8-chloro-2,4( 177,47/)-quinoxalinedione 6-Amino-7-chloro-5,8-quinoxalinequinone 6-Amino-2-cyano-7-methoxy-3-phenyl-... [Pg.365]

Examples of photoreduction processes, brought about by hydrogen abstraction from solvents are the reduction of azobenzene to hydrazo-benzene,81 of 2,3-diphenyl-5,8-quinoxalinedione (CXXXIII) to its hexahydro derivative,148 of pteroxyl-L-glutamic acid to dihydro-2-amino-4-hydroxypteridine-6-aldehyde,80 and of the blue gem-chloro-nitroso compounds CXXXIV-CXXXVI to the corresponding ketox-imes.189... [Pg.99]

Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...