So i was right, sedit h20. So it seems i understand this to a degree after all.
I would like to add some more points about CuCl2 and its efect on this reaction. becasue, i was right with the points i made, and i didnt make clear points about benz other than to say, i dont know how it is an "Oxygen Source" as it is consistantly refered to in refs.
I will attatch a ref outlining the effects of CuCl2 on this reaction. But i would like to quote a few things out of it.
The surprisingly strong stabilization by the oxidant CuCl2
could also explain the observed formation of chlorohydrin products at
higher [CuCl2].
It is not clear exactly how this occurs, but our preliminary results indicate that forming a C-Cl bond from either
reductive elimination or nucleophilic attack (SN2) directly from 9-H has a barrier >50 kcal/mol.
Furthermore, since the ratio of chlorohydrin to aldehyde products increases with increasing [CuCl2],5c this implies a second- (or higher) order dependence of chlorohydrin formation on CuCl2. Consequently, eq 6, which only describes loss of starting material, should be replaced by the sum of two different terms, that is, eq 7, where k1 and k2 are the
rate constants associated with the formation of aldehyde and chlorohydrin products, respectivelyIn summary, using theoretical methods, we have identified the two main mechanisms for the Wacker process, both of which are
in full agreement with experimental observations and rate laws.
At low [Cl-] and low [CuCl2], the rate determining step is not hydroxypalladation as typically believed, but isomerization from 10 f 6, a step that is necessary for subsequent hydride transfer processes.
At high [Cl-] and high [CuCl2], the rate-determining step is an external nucleophilic attack by water,
which is only low energy in the presence of [CuCl2]. Consequently, the rate law athigh [Cl-] and [CuCl2] should include a [CuCl2] term.
Shake you do not understand the wacker oxidation or the role of the benzoquinone
not to be a smartass but it seems i was exactly right with my first post about the wacker and the effect of CuCl salts.
As for benzoquinone, i said the oxygen source was water did i not? so i was right there too. Ill give it to you that i am not an expert here either, but this has been an area i have been studying the last couple months