1H NMR long-range coupling in the assignment of stereochemistry to 4-imidazolidinones
摘要:
AbstractLong‐range couplings were observed between protons attached to C‐2 and C‐5 of the 4‐imidazolidinone ring. Since 4J(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.
1H NMR long-range coupling in the assignment of stereochemistry to 4-imidazolidinones
摘要:
AbstractLong‐range couplings were observed between protons attached to C‐2 and C‐5 of the 4‐imidazolidinone ring. Since 4J(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.