Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy p. 535 - 542 (1980)
Update date:2022-08-04
Topics:
Robert, J. F.
Koch, J.
Xicluna, A.
Panouse, J. J.
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.
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