Benzo z carbazole

The early literature has been thoroughly reviewed. a-Pyrones are known to add benzyne, often with elimination of CO2 from the resulting adduct. The method has been applied to pyranoindolones 310 to provide a short general route to benzo[Z ]carbazoles 311168. 

A number of azaarenes have also been detected in cigarette smoke (/7, 28, 56). These have included quinoline, methyl- and dimethylquinolines, isoquinoline, and alkylisoquinolines, benzo[/i]quinoline, acridine, phenan-thridine, benzo[/]quinoline, 4-azafluorenes, 1-azafluoranthenes, 4-azapyrenes, 9-methylcarbazoles, indole, alkylindoles, alkylcarbazoles, benzo[Z>]carbazole, dibenzo[c,g]carbazole, and benz[c]acridine. 

Procter and collaborators reported the synthesis of benzo[Z)]-carbazole end-capped oligothiophene organic semi-conductors using a tag intro-duction-cyclisation - tag removal-cyclisation approach. After the... 

Wen-Chen Z, Ling-Jun L, Xian-En Z et al (2008) Application of 2-(l l//-benzo[ i]carbazol-11 -yl) ethyl carbonochloridate as a precolumn derivatization reagent of amino acid by high performance liquid chromatography with fluorescence detection. Chin J Anal Chem 36 1071-1076... 

A fundamental chemical tactic in the synthetic manipulation of heterocycies by organic chemists is the reduction of the heterocyclic ring. This chapter will review advances in the partial and complete reduction of pyrroles, furans, thiophenes and their benzo analogs, indoles, benzo[Z>]furans and benzo[Z>]thio-phenes. As appropriate, coverage will include the reduction of those benzo analogs of lesser interest isoindole, carbazole, benzo[c]furan (isobenzofuran), dibenzofuran and dibenzothiophene. 

The numbering of carbazole (benzo[Z ] indole) predates the introduction of systematic nomenclature and is retained for historical reasons. 

The benzo[a] (19), benzo[/t (15) and benzo[c] (16) fused heterocycles are heterocyclic analogues of naphthalene, with the dibenzo heterocycles (17) bearing a similar electronic relationship to phenanthrene. Some of these compounds are still known by their trivial names indole (15 Z = NH), isoindole (16 Z = NH), carbazole (18) and indolizine (19). The names thianaphthene and pyrrocoline for (15 Z = S) and (19) respectively are now little used. Particular confusion can arise in consulting... 

Bzl-Methylamino-benzanthion 14 II 76. z-Amino-2-methyI-benzanthron 14 I 405. 2-Anilino-diphenylenozyd 18 II422. N-AcetyI-2.3-beDzo-carbazol 20, 495, 1179. K-AoetyI-3.4-benzo-oarWoI 80, 496, 1179. 7-Methozy.l.2-benzo-aoridin 21II 96. Anhydro- 5 -ozy. [benzo-1. 2 1.2-acridin]-hydroxymetbylat 21, 152. 

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