兰州交通大学化学与生物工程学院 有机化学习题集 11) 12 CH3 CH2CI CH2OH (CH2O)3.HCl CH NaOH/H2O CH3 (13) CH;CH:CH3Br--HBrCH,CH-CH: Cl2 →CH,CHCICH,CI KOH/C:HOH CH,C-CH_Na_CH.C-CNa CH:CH-CH2Br →CH3C=CCH,CH,CH 12.解： CH3 CH3-C-CH2CH3 CH;OH CH;-C-CH2CH OCH; Br CH3 CH3 C-CH.CHCH-c-cH.ct CH3 HCH;C-CHCH CH3 CH3-C-CH2CH3 CHz=CCH2CHs CHa 13.解 KOH, ∥0 CH3-CH2CHO EtOH Zn.HO CH:CHO (A) (B) (C)