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13C NMR: Stereochemical dependence of the one-bond coupling constant 1J13CH in α-halogenoketones

✍ Scribed by J. Cantacuzene; R. Jantzen; M. Tordeux; C. Chachaty


Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
135 KB
Volume
7
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

The one‐bond coupling constant ^1^J ^13^CH for the halogenated carbon in α‐halogenocyclohexanones is more important when the CH bond is in the equatorial then in the axial position. When a conformational equilibrium is present, the resulting coupling is a linear function of the equilibrium constant.


📜 SIMILAR VOLUMES


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Chiral synthons containing either 13Cor 15N-labelled glycine were prepared. The 13C and 15N NMR spectra of the Ni(II) complex of the Schi † base of (S)-2-(N-benzylprolyl)aminobenzophenone and 13C-1-, 13C-2or 15N-labelled glycine were measured and assigned. The observed splitting of the carbon signal