Reduction of Carbonyls (AQA A-Level Chemistry): Flashcards

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Reduction of Carbonyls
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Product when aldehydes are reduced

Primary alcohols

Product when ketones are reduced

Secondary alcohols

Reducing agent for carbonyl compounds

Sodium borohydride (NaBH4NaBH₄)

Type of reaction in carbonyl reduction

Nucleophilic addition

Species provided by NaBH4NaBH₄

Hydride ions (H−H⁻)

Role of H−H⁻ in carbonyl reduction

Nucleophile

Why NaBH4NaBH₄ doesn't reduce C=CC=C bonds

C=CC=C has high electron density

What H−H⁻ attacks in the carbonyl group

Partially positive carbon

Product of ethanal reduction

Ethanol

Product of propanone reduction

Propan-2-ol

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Amines (A Level only)

Polymers (A Level only)

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Nuclear Magnetic Resonance Spectroscopy (A Level only)

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