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13C NMR chemical shift assignments for some carbazole derivatives

✍ Scribed by Alan R. Katritzky; Gordon W. Rewcastle; Luis M. Vazquez De Miguel; Zuoquan Wang

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
317 KB
Volume
26
Category
Article
ISSN
0749-1581

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✦ Synopsis

13C NMR chemical shift assignments have been made for a series of 1-substituted carbazoles, 8-substituted 1.2,3,4-tetrahydrocarbazoles, 1 -substituted benzo[a]carbazoles and 6-substituted dibenzo-[c,g]carbazoles. Single examples were examined of other classes of substituted carbazoles: 3-butylcarbazole and its tetrahydro precursor 6-butyl-1,2,3,4-tetrahydrocarbazole, 8-butyl-and 8.1 O-diethylbenzo[a]carbazotes and their 5,6-dihydro precursors, dibenzo[a,i]carbazole and its 5.6.7.8-tetrahydro precursor, benzo[c]carbazole and its 6-chloro derivatives and 5,6-dihydrobenzo[c]carbazole and 5.6, 8,9-tetrahydrodibenzo[c,g]carbazole and their N-methyl derivatives. In addition, the N-(1 -pyrrolidinomethyl) derivatives of carbazole, 1,2,3.4-tetrahydrocarbazole, benzo[c]carbazole and dibenzo[c,g] carbazole were also studied. KEYWORDS 13C NMR Chemical shift assignments Carbazole derivatives.

Table 5. I3C NMR chemical shifts of dibenzo[c,g]carbazoles

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