The Haloform reaction given by only methyl ketones because it can form enolate ions by removal of alpha hydrogen and which is stabilised by de localisation of electron with carbonyl carbon therefore the alpha carbon can be bonded with three halogens atoms .
Tuesday, January 28, 2020
Which alcohol does not give iodoform test?
Ethanol and other terminal 2°alcohol like Iso propyl alcohol , butan-2-ol, Petan-2-ol etc gives Iodoform test positive other alcohol does not give Iodoform form reactions .
Why does ethanol cause Haloform (Iodoform) reactions?
Ethanol gives Iodoform test positive because, under the reaction conditions it oxidised to ethanal (acetaldehyde) which is the only aldehyde that undergoes Haloform reaction.
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