Find out the major products from the following reactions
Show Hint
Markovnikov’s Rule: The electrophile adds to the more substituted carbon.
Anti-Markovnikov’s Rule: The electrophile adds to the less substituted carbon.
The Correct Option is B
Solution and Explanation
• In the presence of \(Hg(OAc)_2, H_2O, NaBH_4\), an alkene undergoes oxymercuration-demercuration, which adds water across the double bond following
Markovnikov’s rule. The hydroxyl group attaches to the more substituted carbon atom.
• In the presence of\( BH_3, THF, H_2O_2/OH^−\), an alkene undergoes hydroboration-oxidation, which adds water across the double bond following
Anti-Markovnikov’s rule. The hydroxyl group attaches to the less substituted carbon atom.
Thus:
• Product A is the Anti-Markovnikov product (from hydroboration-oxidation).
• Product B is the Markovnikov product (from oxymercuration-demercuration).
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Concepts Used:
Alcohols, Phenols, and Ethers
Alcohol is formed when a saturated carbon atom bonds to a hydroxyl (-OH) group. It is an organic compound that contains a hydroxyl functional group attached to a carbon atom.
Phenol is formed when the -OH group replaces the hydrogen atom in benzene. It is an organic compound in which a hydroxyl group directly attaches to an aromatic hydrocarbon.
Ether is formed when oxygen atom bonds to two alkyl or aryl groups. It is an organic compound that has an oxygen atom that is connected to two aryl and alkyl groups.
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