"9"^^ . "This work deals with the study of reactivity of some 3-(2-aminophenyl)-1,2-dihydroquinoxaline-2-one (4) which were prepared by the reaction of N-acetylisatines (2a-2c) with 1,2-diaminobenzene and further hydrolysis of acetyl group. Compounds 2d, 2e were prepared by the reaction of isatines 1d, 1e with 1,2-diaminobenzene. Cyclization reaction of (4) in POCl3 afforded indolo[2,3-b]quinoxaline (7a-7e). Intramolecular coupling reactions of diazonium salts (5) lead to [1]benzofuro[2,3-b]quinoxalines (6) and azocoupling reactions of diazonium salts (5) with ethyl cyanoacetyl carbamate and malonodinitrile gave arylhydrazones (9) and (10). These arylhydrazones were then transformed to [1,2,4]triazines (11) and 1,3-diaminopyrazoles (12)."@en . "3-(2-aminophenyl)-1; 2-dihydro-quinoxaline-2-ones; subst. indolo[2; 3-b]quinoxalines; triazine"@en . "V\u00EDcejadern\u00ED heterocyklick\u00E9 N-H kyseliny VII. Synt\u00E9za n\u011Bkter\u00FDch v\u00EDcejadern\u00FDch heterocyklick\u00FDch slou\u010Denin obsahuj\u00EDc\u00EDch 3-fenyl-1,2-dihydro-chinoxalin-2-on"@cs . "[DE89A604FE68]" . "Polycyclic Heterocycles with Acidic N-H Group, VI1. The synthesis of some polycyclic heterocyclic compounds related to 3-phenyl-1,2-dihydro-quinoxaline-2-one"@en . "1424-6376" . . "Polycyclic Heterocycles with Acidic N-H Group, VI1. The synthesis of some polycyclic heterocyclic compounds related to 3-phenyl-1,2-dihydro-quinoxaline-2-one" . . "536645" . "Fry\u0161ov\u00E1, Iveta" . . "Polycyclic Heterocycles with Acidic N-H Group, VI1. The synthesis of some polycyclic heterocyclic compounds related to 3-phenyl-1,2-dihydro-quinoxaline-2-one" . "6" . . "30-38" . . . "RIV/61989592:15310/05:00002117!RIV06-MSM-15310___" . . "V\u00EDcejadern\u00ED heterocyklick\u00E9 N-H kyseliny VII. Synt\u00E9za n\u011Bkter\u00FDch v\u00EDcejadern\u00FDch heterocyklick\u00FDch slou\u010Denin obsahuj\u00EDc\u00EDch 3-fenyl-1,2-dihydro-chinoxalin-2-on"@cs . "Z(MSM6198959216)" . "Slouka, Jan" . . "15" . . . . . . "Arkivoc" . "Guck\u00FD, Tom\u00E1\u0161" . . "Polycyclic Heterocycles with Acidic N-H Group, VI1. The synthesis of some polycyclic heterocyclic compounds related to 3-phenyl-1,2-dihydro-quinoxaline-2-one"@en . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . . . "Tato pr\u00E1ce se zab\u00FDv\u00E1 reaktivitou n\u011Bkter\u00FDch 3-(2-aminofenyl)-1,2-dihydrochinoxalin-2-on\u016F. Diazotac\u00ED t\u011Bchto amin\u016F a kopulac\u00ED s ethyl kyanoacetylkarbam\u00E1tem nebo malonodinitrilem byly p\u0159ipraveny hydrazony, kter\u00E9 byly p\u0159evedeny na odpov\u00EDdaj\u00EDc\u00ED [1,2,4]triaziny a 1,3-diaminopyrazoly."@cs . . "This work deals with the study of reactivity of some 3-(2-aminophenyl)-1,2-dihydroquinoxaline-2-one (4) which were prepared by the reaction of N-acetylisatines (2a-2c) with 1,2-diaminobenzene and further hydrolysis of acetyl group. Compounds 2d, 2e were prepared by the reaction of isatines 1d, 1e with 1,2-diaminobenzene. Cyclization reaction of (4) in POCl3 afforded indolo[2,3-b]quinoxaline (7a-7e). Intramolecular coupling reactions of diazonium salts (5) lead to [1]benzofuro[2,3-b]quinoxalines (6) and azocoupling reactions of diazonium salts (5) with ethyl cyanoacetyl carbamate and malonodinitrile gave arylhydrazones (9) and (10). These arylhydrazones were then transformed to [1,2,4]triazines (11) and 1,3-diaminopyrazoles (12)." . "RIV/61989592:15310/05:00002117" . . . "3"^^ . "3"^^ . "15310" .