Why hydroxyl group proton exchange in nmr is faster than -CH group?

01 January 2018 0 6K Report

I learned that the reason that hydroxyl proton is not affected by adjacent proton is the rate of proton exchange.

Then, why the rate of hydroxyl group proton exchange is faster than -CH? because of electronegativity? If so, why? What is correlation between electronegativity and exchange rate?

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