简要写一下:
HC≡CH→→H2C=CH2→(HBr)→CH3CH2Br
HC≡CH + NaNH2→ NaC≡CNa
NaC≡CNa +CH3CH2Br→CH3CH2C≡CCH2CH3
CH3CH2C≡CCH2CH3 +H2O → 3-己酮 (炔烃水合重排成酮)
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