1.醇的碱性 HO pKa 15.7 C2H5OH pKa 18 酸性 HO>CHOH 碱性 CHO>OH ROH RC≡CNa (or RLi, \\y RO CH3OH RCH2OH >R2 CHOH>R3 COH Cl3 CCH2 OH> ClCH2 CH2OH CH3 CH2 CH2OH 碱性:ROH+H ROH 21.醇的碱性: H2O pKa 15.7 C2H5OH pKa 18 酸性 H2O>C2H5OH 碱性 C2H5O - >OH￾ROH RC CNa NaNH2 (or RLi, ) RO CH3OH > RCH2OH R2CHOH > R3COH > > Cl3CCH2OH > ClCH2CH2OH CH3CH2CH2OH 碱性：ROH + H ROH2