4 public questions tagged with this topic.
Methyl magnesium bromide (CH₃MgBr) reacts with acetone (CH₃COCH₃), adding the methyl group to the carbonyl carbon, and hydrolysis yields 2-methylpropan-2-ol ((CH₃)3COH).
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Classification and Nomenclature and Structures of Alcohols Phenols Ethers
2-Methylpropan-2-ol ((CH₃)3COH), a tertiary alcohol, does not oxidize with KMnO₄ due to the absence of an alpha hydrogen, so it remains unchanged.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Phenols and Ethers and Uses
2-Methylpropan-2-ol, a tertiary alcohol, dehydrates via an E₁ mechanism with conc. H₂SO₄, forming a stable tertiary carbocation intermediate.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
Conc. H₂SO₄ at 140°C rapidly dehydrates 2-methylpropan-2-ol, a tertiary alcohol, to 2-methylpropene via a stable tertiary carbocation in an E₁ mechanism.
Ref: NCERT Class 12 Chemistry > Chapter 7: Alcohols, Phenols and Ethers > Topic: Chemical Reactions of Alcohols - Dehydration Oxidation Esterification
