Question

How would you obtain but-2-enal from ethanol.?

Answer 1

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Answer 2

Hey dear,

● Ethanol to but-2-enal -
Ethanol can be converted to but-2-enal with following steps -

# Step I -
Ethanol is oxidized to ethanal with alk.KMnO4.
CH3CH2OH + [O] --> CH3CHO + H2O

# Step II -
Two ethanol molecules combine to form 3-hydroxybutanal.
2CH3CHO --> CH3-CH(OH)-CH2-CHO


# Step III -
3-hydroxybutanal on dehydration by heating yields but-2-enal.
CH3-CH(OH)-CH2-CHO + ∆ --> CH3-CH=CH-CHO + H2O

Thanks for asking.