The structure of ascrobyl palmitate contains a vinyl group, so I assume the red proton would be: enter image description here

  • 1
    $\begingroup$ What about the other OH group on the other side of the double bond? $\endgroup$ – orthocresol Mar 19 '17 at 18:52

The other H (hydrogen) will be more acidic. The ascorbate anion is stabilized by electron delocalization, as I have show below in terms of resonance between two canonical forms.

ascorbate anion resonance


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.