1H and 13C NMR Studies of 5,6,11-Trimethyl-6H-indolo[2,3-b]quinolinium Methylsulfate and Some of Its Derivatives

• Autorzy: Kania, L. , Kamieńska-Trela, K. , Kaczmarek, Ł.
• Języki publikacji: EN

Abstrakty

EN

1H and 13C NMR spectra of the parent 5,6,11-trimethyl-6H-indolo[2,3-b]quinolinium methylsulfate and of its nine 2- and 9-methyl-, methoxy- and fluoro-substituted derivatives were measured and assigned from COSY 1H-1H, HETCOR 1H-13C and SPT INEPT experiments. Proton and carbon-13 chemical shifts and long range spin-spin coupling constants (nJHH, n = 3, 4) were considered in terms of the electron density distribution in the indoloquinolinium moiety and compared with the corresponding data obtained earlier for 5,11-dimethyl-5H-and 6,11-dimethyl-6H-indolo[2,3-b]quinoline derivatives. The sensitivity of the proton chemical shifts to the changes in concentration was found for all the compounds studied.

• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2000
• Tom: Vol. 74, nr 11
• Strony: 1599-1608
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Kania, L.

autor

Kamieńska-Trela, K.

autor

Kaczmarek, Ł.

• Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44, 01-224 Warsaw, Poland