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Discussion in 'Pre-Medical - MD' started by yalla22, Apr 27, 2004.
what does h30+ do when it reacts with double bonds?(like c=c and c=o)?
H30+, like any acid, donates a proton, though you'd have to have more to the reaction than just protonated water and a double bond to get it to do anything at all.
Acid can hydrolyze an alkene to an alcohol, with Markovnikov orientation, but it's not generally used in lab synthesis. Protonation makes a carbonyl more reactive.
what is h3o+ is the only compound shown to be reacting with this gigantic molecule containing a bunch of c=o's, etc...
Need more specifics. What molecule?
The O of the C=O will be protonated by the H+, and then the H20 will attack the C of the C=O. Depending on the nature of the carbonyl's r group(s), it may or may not undergo elimination (by eliminating an r group, or opening up a ring), as the H2O loses one proton, forming a carboxylic acid.
It be easier to help if we had specifics, not just a general case, because different conditions warrant different mechanisms, but generally, the above will happen. Simple addition/elimination.