Which of the following is the most stable cation? IV D. IV For the following rea

Question

Which of the following is the most stable cation? IV D. IV For the following reaction step, indicate which pattern of arrow pushing it represents A. proton transfer B. loss of leaving group nucleophilic attack rearrangement 6. The following reaction has three mechanistic steps. Draw all curved arrows necessary to the mechanism. HBr Br H-Br : Br ÖH2 7. Identify the sequence of curved arrows (electron movement) in the steps of the following Me MeOH HO OH' MeOH HO OMe @ proton transfer, proton transfer, nucleophilic Attack B. proton transfer, loss of leaving group C nucleophilic attack, proton transfer, loss of leaving group D proton transfer, nucleophilic attack, proton transfer

Explanation / Answer

Ans 24 : C) III

The stability of carbocatiosn is directly proportional to the carbon substitution. So more the substitution , more stable the carbocation is.

Since the molecule here in III is the only tertiary carbocation , it is most stable amongst all.

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