Carbon??13 NMR spectra of some phenanthrene derivatives from Aristolochia indica and their analogues

…, S Bandyopadhyay, AK Chakravarty…

Index: Achari, Basudeb; Bandyopadhyay, Soumitra; Chakravarty, Ajit K.; Pakrashi, Satyesh C. Organic Magnetic Resonance, 1984 , vol. 22, # 12 p. 741 - 746

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Citation Number: 20

Abstract

Abstract 13 C NMR spectra of compounds related to aristolochic acid and aristololactam, the constituents of Aristolochia indica, have been studied to determine the chemical shifts and coupling constants of polysubstituted phenanthrenes. Selective 1 H decoupling and long- range couplings were utilized for the assignments. Substituent-induced chemical shifts and also the effects on coupling constants could be deduced in some cases. Anion formation ...