Quinoxaline nomenclature

Imidazo[l,2-c]pyrimidine, 2,5,7-trichloro-nucleophilic displacement reactions, 5, 627 Imi dazo[ 1,2-a]pyrimidines pK, 3, 338 reactivity, 5, 627 synthesis, 5, 647 Imidazo[ 1,2-c]pyrimidines reactions, 5, 627 structure, 5, 610 synthesis, 5, 648-649 lmidazo[ 1,5-a]pyrimidines reactions, 5, 628 synthesis, 5, 649 lmidazo[l,5-6]pyrimidines synthesis, 5, 649-650 Imidazopyrrolopyridines bromination, 4, 506 lmidazo[4,5-6]quinoxaline nomenclature, 1, 22... 

Pyrido[ 1, 2 1,2]imidazo[4,5-b]quinoxaline nomenclature, 1, 22 2,2 -Pyridoin synthesis, 2, 337 Pyrido[ 1,2-6]indazoles synthesis, 5, 335 E ridoindoles rearrangement, 4, 508 Pyrido[a]indoles synthesis, 4, 233 Pyrido[6]indoles nomenclature, 4, 498 Pyridooxadiazolones ring contraction, 4, 149... 

Vilsmeier reaction, 4, 1051 Furo[3,2-6]pyrroles MO calculations, 6, 979 synthesis, 4, 1069 6, 1009 Furo[3,4-a]pyrrolo[2,1,5-cd]indolizine nomenclature, 1, 22 Furopyrylium salts, 4, 993-995 Furoquinolines biosynthesis, 4, 992 occurrence, 4, 988 pharmacology, 4, 992 reactions, 4, 988 synthesis, 4, 989 Furo[3,2-c]quinolines, 4, 991 Furo[3,4-fe]quinoxaline, 1,3-diphenyl-synthesis, 4, 993 Furoquinoxalines, 4, 992 Furo[2,3-6]quinoxalines synthesis, 4, 992 Furosemide toxicity, 1, 136 Furospinulosin UV spectra, 4, 587 Furospongin-I mass spectrometry, 4, 583 Furo[3,4-d][l,2,3]triazole, 2,6-dihydro-synthesis, 6, 996 Furo[3,4 -d][ 1,2,3]triazoles synthesis, 6, 996 Furoxan, 4-amino-3-aryl-tautomerism, 6, 404 Furoxan, 4-amino-3-methyl-synthesis, 4, 414 Furoxan, 4-aryl-3-methyl-rearrangement, 6, 408 Furoxan, 3-aryl-4-nitro-synthesis, 6, 414 Furoxan, 4-benzoyl-3-methyl-oxime... 

This nucleus has also been referred to as 4,5-quinoxalinoimidazole and imidazolo-5, 4 2,3-quinoxaline. Most of the reported derivatives of this ring system are cyanine dyestuffs and may be named accordingly. For example, Chemical Abstracts indexes compound SO as an imidazo[4,5-h]quinoxalinocarbocyanine, as well as by using more systematic nomenclature. Similarly 51 may also be called an imidazo[4,5-h]quinoxalino-indocarbocyanine, and compound 52 is referred to as an imidazo[4,5-b ]quinoxalinothiacarbocyanine. 

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