Carbon‐13 chemical shifts assignment of ( E )‐styryluracits. ( E )‐styrylthiouracils and ( E )‐3‐oxothiazolo[3,2‐a]‐6‐styryl‐pyrimidin‐5‐ones | Zendy

Łapucha Andrzej | Zendy; Wyrzykiewicz Elzbieta | Zendy

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Carbon‐13 chemical shifts assignment of ( E )‐styryluracits. ( E )‐styrylthiouracils and ( E )‐3‐oxothiazolo[3,2‐a]‐6‐styryl‐pyrimidin‐5‐ones

Author(s) -

Łapucha Andrzej,

Wyrzykiewicz Elzbieta

Publication year - 1987

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260250516

Subject(s) - chemistry , chemical shift , carbon 13 nmr , thio , spectral line , stereochemistry , computational chemistry , physics , astronomy

The 13 C NMR spectra of nine isomeric ( E )‐styryluracils and ( E )‐styrylthiouracils and those of five ( E )‐3‐oxothiazolo[3,2‐ a ]‐6‐styrylpyrimidin‐5‐ones have been fully assigned. The A i and A i K empirical parameters of p ‐ and m ‐hydroxystyryl, p ‐N,N‐diethylaminostyryl, 5‐ and 6‐vinyl02,4‐diketopyrimidyl, 5‐ and 6‐vinyl‐2‐thio‐4‐ketopyrimidyl and 3‐oxothiazolo[3,2‐ a ]‐6‐vinyl‐5‐ketopyrimidyl groups were calculated for the prediction of the chemical shifts of substituted ( E )‐styryluracils and ( E )‐3‐oxothiazolo[3,2‐ a ]styrylpyrimidin‐5‐ones.

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