I. Efremova, L. V. Lapshina, M. Vakulenko
Oct 13, 2013
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Journal
Russian Journal of General Chemistry
Abstract
The reactions of 3-methyl-4-nitro-3-thiolene-1,1-dioxide with highly basic amines (pKa of HB+ = 8.97–13.27), morpholine, piperazine, piperidine, cyclohexylamine, diphenylguanidine, and guanidine, proceed via deprotonation of methylene group at the C2 atom of sulfolene ring with formation of ammonium thiolene nitronates. The products were characterized by IR, UV, and NMR (1H, 13C, 2D) spectroscopy methods.