Determine I — IV in the sequence below given that I shows three singlets in $$its ^{1}H $$NMR spectrum with the integration ratio 9 : 2 : 9.

Aldol Condensation

25. Condensation Chemistry / Aldol Condensation / Problema 4

Problema 4

Determine I — IV in the sequence below given that I shows three singlets in its ¹H NMR spectrum with the integration ratio 9 : 2 : 9.

Four molecular structures labeled I to IV for aldol condensation.

Four molecular structures labeled I to IV for aldol condensation with different configurations.

Four molecular structures labeled I to IV for aldol condensation with varied substituents.

Four molecular structures labeled I to IV for aldol condensation with different branching.