HydrocarbonshardMCQ SINGLE

What are the final primary products when but-1-yne undergoes oxidative ozonolysis (treatment with foHydrocarbons Chemistry Question

Question

What are the final primary products when but-1-yne undergoes oxidative ozonolysis (treatment with $O_3$ followed by $H_2O_2$ or $KMnO_4/H^+$)?

Answer: B

💡 Solution & Explanation

Ozonolysis of alkynes cleaves the triple bond. Oxidative workup oxidizes the fragments to carboxylic acids. But-1-yne ($CH_3-CH_2-C\equiv CH$) cleaves between C1 and C2. The internal part ($C_3$) forms propanoic acid ($CH_3CH_2COOH$). The terminal carbon forms methanoic acid ($HCOOH$), which is further oxidized under these conditions to $CO_2$ and $H_2O$.

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