Talk:Aldehyde
From Wikipedia, the free encyclopedia
[edit] pKa
The pKa of an α hydrogen is 20.
NOTE: Where did that pKa come from? Is it aliphatic or aromatic, as benzaldehyde would stand to have a lower pKa (as it is more acidic that the aliphatic version).
- Benzaldehyde has no alpha proton, so it is not acidic, do you mean phenylacetaldehyde? I don't have the source of this value to hand, but I do have a reference for 3-pentanone as pKa 19-20 in water. See here I suspect that the higher figure you have seen is in DMSO, where pKa values are usually higher than in water. Walkerma 21:01, 20 September 2005 (UTC)
how does an organism metabolize an aldehyde?
