OH mec-Hm&ca→pnct-1·i 0 pm8 CH-H OH,PHOCHI→Pm&cah·i PHeCI:-cmc 0 PHeCIs OHPh 9 Cg,→PhC+c， OH OH →PhCo0+CH1 H ) CH-CHCHO OH CH2CHCHO CH2CH2CHO H (CH,CCHCH,CH,OH CH,CCHCH.CH,C子内sg8CH 0 CH CCH-CH2 14-9 0oot第去aa8a,GHCl8o。 06 H H H C H C O O O - OH OH (5) + H C O - CHPh H C H O O + H Ph - NaOH HCOONa + H2CPh OH O H - - (6 ) PhCCH2 OH slow O PhCCH2 I2 fast O PhCCH2 I + I - - - O PhCCH H I I OH I O PhCCH I - 2 O PhCCHI2 + C C O O OH H - I2 O PhCCI2 I OH - - - O PhCCI2 O PhCCI3 + O PhCCI3 - OH Ph CI3 - Ph - OH + CI3 PhCOO + CHI3 - (7) CH2CHCHO CH2CH2CHO H OH - CH2CHCHO CH2CH2C O H CHO O CHO O H H H2O CHO O (8) CH3CCHCH2CH2Cl H OH - O CH3CCHCH2CH2Cl CH2 CH3CCH CH2 - Cl - O ✲✴✳✦✵ SN2✶✩✷ 14-9 O (1 ) H2O/H3PO4✸ ✹ ✺✼✻ CH3CH2CCH3 , CH3CH2CONa O , CHBr3, CH3CH2CCH2Br O