Etude i.r. et NMR de diaryl-2,4 diethoxycarbonyl-5,5Δ1pyrrolines

Article abstract of DOI:10.1016/0584-8539(80)80005-5

The spectroscopic properties (i.r., NMR) of 2,4-diaryl-5,5-diethoxycarbonyl-Δ₁-pyrrolines has been studied.Chemical shifts and coupling constants of pyrrolinic protons are affected by effect of substitution on phenyl rings.In all cases, we have noted the conservation of magnetic non-equivalence of ethyl ester and methylene groups.Examination of these NMR data gives conformational approach of these pyrrolines.