Question

conversion But-1-yne to pentan-2-one

Answer 1

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Answer 2

Hey dear,

● But-1-yne to pentan-2-one -
Conversion of but-1-yne to pentan-2-one requires multiple steps.

# Step I -
Butyne is first treated with NaNH2 followed by reaction with methyl bromide to give pent-2-yne.

CH3-CH2-CH=CH2 ---> CH3-CH2-CH=CH-CH3
Reagents - NaNH2 + CH3Br

# Step II -
Pent-2-yne on hydrolysis with H2SO4 (with HgSO4) gives ethanol which on further oxidation gives pentan-2-one.

CH3-CH2-CH=CH-CH3 ---> CH3-CH2-CH2-CO-CH3
Reagents - conc.H2SO4 + HgSO4

Hope this helps you...