
%0 Journal Article
%A Katekar, GF 
%A Moritz, AG 
%T The nuclear magnetic resonance spectra and stereochemistry of 4-Benzoyloxy-1-thiaflavans
%J Australian Journal of Chemistry
%D 1967/10/01
%V 20
%N 10
%P 2235-2241
%K 
%R https://doi.org/10.1071/CH9672235
%U https://www.publish.csiro.au/paper/CH9672235 
%X The nuclear magnetic resonance spectra of cis- and trans-4-benzoyloxy- 1-thiaflavan in deuterochloroform have been investigated at 60 Mc/s. The spectral parameters for the heterocyclic ring protons have been obtained by analysis of the frequency-sweep double-resonance spectra and verified by an iterative technique using a digital computer. Long- range coupling constants were observed between the protons at C 4 and C 5 (J 0.8 c/s) and between the protons at C 2 and C 4 (J 0.2 c/s) for the cis isomer. 
