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Proton and carbon‐13 NMR studies of 2‐aminothiazoles and 2‐iminothiazolines
Author(s) -
Tseng C. K.
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.1260250204
Subject(s) - chemistry , geminal , vicinal , protonation , tautomer , coupling constant , chemical shift , nitrogen atom , ring (chemistry) , proton , stereochemistry , computational chemistry , carbon 13 nmr , medicinal chemistry , crystallography , organic chemistry , ion , physics , particle physics , quantum mechanics
Abstract Proton and 13 C NMR chemical shifts and coupling constants of 2‐aminothiazoles and 2‐iminothiazolines are reported. The one‐bond CH, vicinal H‐H, geminal CH and vicinal CH coupling constants of 2‐aminothiazoles and 2‐iminothiazolines are discussed in terms of tautomerism between amino forms and imino forms. The site of charge centered either on the ring nitrogen or the exocyclic nitrogen atom in the protonated 2‐aminothiazole is also discussed.