Doubt from alcohol

#1

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#2

Please check if (a) is the answer..

#3

I don't know the answer right now.But please explain how (a)?

#4

So what I remember is that reaction with Pb(CH3COO)4 gives the same product as NaIO3 and in those reactions 'Chelation' was required in the mechanism and hence cis gem diol's give the reaction fastest among given options..

#5

Sorry I meant NaIO4 instead of NaIO3

#6


Just to provide a bit more insight. (Source-Wikipedia)

#7

Answer is option (a)

Oxidation with Pb(OAc)4 requires two conditions:

  1. (-OH) must lie on same side of the C atom[To form the Reaction Complex]
  2. (-OH) must be on Adjacent C [Breaking of C-C bond]