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1 H NMR long‐range coupling in the assignment of stereochemistry to 4‐imidazolidinones
Author(s) -
Połoński T.
Publication year - 1984
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270220309
Subject(s) - ring (chemistry) , range (aeronautics) , chemistry , coupling (piping) , stereochemistry , organic chemistry , materials science , metallurgy , composite material
Long‐range couplings were observed between protons attached to C‐2 and C‐5 of the 4‐imidazolidinone ring. Since 4 J (25) has a measurable value only for a trans arrangement of H‐2 and H‐5, this coupling can be utilized as an easy method of identification of 4‐imidazolidinone stereoisomers.