1CH3C≡CCH3+2KMnO4+2H2O→2CH3COOH+2MnO2↓+2KOH
2.CH3CH2C≡CH+2HBr(过量)→CH3CH2CBr2CH3
3.H2C=C(CH3)C≡CH+HBr→H2CHCBr(CH3)C≡CH
4.H2C=C(CH3)CH=CH2++HBr→H2CHCBr(CH3)CH=CH2
5.HC≡CCH2CH2CH3+Ag(NH3)2OH→CH3CH2CH2C≡CAg↓+2NH3+H2O
CH3CH2CH2C≡CAg+HNO3→HC≡CCH2CH2CH3+AgNO3
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