L. Skrzypek, K. Suwińska
Jun 1, 2007
Citations
1
Influential Citations
4
Citations
Journal
Heterocycles
Abstract
1-Methyl and 1-ethyl- 1,4-dihydro-4-oxo-3-quinohnesulfonic acids were synthesized from 4-chloro-3-quinolinesulfonyl chloride. It was shown that the acids and their 1-H substituted analogues form a betain having a hydroxy substituent located in position 4 and a sulfonate anion group in position 3. However, the sodium salts of the acids take a form of a quinolone tautomer.