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Why is sulthiam base even hough sulfur can accept the electron by resonance from nitrogen like carbonyl group do?

  • $\begingroup$ Aniline is still basic. It's only that it's basicity is reduced due to resonance effects. Same applies here. $\endgroup$ – Nisarg Bhavsar Apr 27 at 4:25
  • $\begingroup$ Amides are not usually considered as base though. $\endgroup$ – Shoubhik R Maiti Apr 27 at 11:33
  • $\begingroup$ So, you're asking about acidity, or basicity? Both are pretty weak in sulphonamides. $\endgroup$ – Mithoron Apr 27 at 20:53