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JEE • Chemistry

Aldehyde & Ketones

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reaction

Aldol Condensation

The source states that carbonyl compounds having acidic sp3sp^3 alpha-H show aldol condensation in dilute NaOH or dilute acid.

2CH3CHO→dil. NaOHCH3CH(OH)CH2CHO→−H2OH+,ΔCH3CH=CHCHO2CH_3CHO\xrightarrow{\text{dil. }NaOH}CH_3CH(OH)CH_2CHO\xrightarrow[-H_2O]{H^+,\Delta}CH_3CH=CHCHO
aldol condensation
2 CH3CHOaldolCH3CH=CHCHOdil. NaOHH+, Δacidic sp3 alpha-H required

Notes

  • Requirement: acidic sp3sp^3 alpha-H on the carbonyl compound.