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NMR study of C- and N-trimethylsilylazole derivatives

✍ Scribed by Lyudmila I. Larina; Mikhail S. Sorokin; Aleksandr I. Albanov; Valentina N. Elokhina; Nadezhda I. Protsuk; Valentin A. Lopyrev

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
223 KB
Volume
36
Category
Article
ISSN
0749-1581

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✦ Synopsis

C-and N-trimethylsilylazole derivatives were studied by 1H, 13C and 29Si NMR spectroscopy. Degenerated prototropic tautomerism of 4-trimethylsilylpyrazole in methanol and the silylotropy of 1trimethylsilyl-4-methylpyrazole in a neat liquid were investigated for the Ðrst time. 3-and 5-tautomers of 3(5)methylpyrazole in a ratio of 54 : 46 were found in methanol by use 13C NMR spectroscopy K, (T c \

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