The synthesis of 3–octyne is achieved by adding a bromoalkane into a mixture of sodium amide and an alkyne. The bromoalkane and alkyne respectively are
BrCH2CH2CH2CH2CH3 and CH3CH2C≡CH
BrCH2CH2CH3 and CH3CH2CH2C≡CH
BrCH2CH2CH2CH2CH3 and CH3C≡CH
BrCH2CH2CH2CH3 and CH3CH2C≡CH
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