Synthesis and 1H and 13C NMR spectra of 7-fluoro-, 9-fluoro- and 11-fluoro-benzo[b]fluoranthenes
作者:D.J. Sardella、P.K. Ghoshal、E. Boger
DOI:10.1016/s0022-1139(00)85208-2
日期:1984.2
We have synthesized 7-fluoro-, 9-fluoro- and 11-fluoro- benzo[b]fluoranthene as part of a study designed to locate the molecular sites involved in the metabolic activation of the carcinogenic parent hydrocarbon. Analysis of the proton NMR spectra reveals the effect of fluorine substitution to be almost entirely localized in the substituted ring, the principal exception being a strong deshielding of