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AM1 and PM3 study of the protonation tautomerization and valence tautomerization of some 4-substituted imidazoles

✍ Scribed by Cemil Öǧretir; Selma Yarligan

Book ID
114142649
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
394 KB
Volume
425
Category
Article
ISSN
0166-1280

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Carbon–13 NMR studies of tautomerism in
Carbon–13 NMR studies of tautomerism in some 2-substituted imidazoles and benzimidazoles
✍ E. Paul Papadopoulos; Ulrich Hollstein 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 353 KB

## Abstract The ^13^C NMR spectra of several 2‐substituted imidazoles and benzimidazoles have been measured. The substituent was CH~3~, COOH and CONHR, where R = H, __n__‐Bu, __p__‐tolyl or __m__‐chlorophenyl. Carbons 4 and 5 in the imidazoles and the carbon pairs 8/9, 4/7 and 5/6 become equivalent