Suggest the reagents for the following conversion.
A
Hg(OAc)2, H2O,NaBH4
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B
B2H6/ether,H2O,H2O2/OH-
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C
H2O/H+
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D
Grignard reagent
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Solution
The correct option is B
B2H6/ether,H2O,H2O2/OH-
Hydroboration-oxidation gives the less substituted alcohol as the major product, which is in accordance with the anti-Markovnikov's rule. Thus, a terminal alcohol will be obtained when boranes in ether or THF (tetrahydrofuran) along with alkaline hydrogen peroxide, is added to the given alkene. A secondary alcohol will be formed on treatment with reagent (a) while reagent (c) will give a mixture of secondary and primary (minor product) alcohols.