()SNl反应 (CH).COH+r(CH,cdlH(CH,在、三(CHgC-C F(CH,c6H+ZnC、三(CH).C8克Cg→1CHl,t+ZnC,Ol 日 cr (CH)C-CI ZnckHao ) (CH)CCHCHH CH3)CCHOH2(CH)CCH-CH OH 甲#迁毯(CH)CCH(CH)→(CH)CCH(CH力 OH 扩环 Br CH3 HO CH3 (5)(CHC-C(CH)Ag OHBr OH CH3 H CH.CC(CH) OH m (频事麻重) 「r84 (2 ) SN1 (CH3)3COH + H + (CH3)3COH (CH3 ) 2 3C (CH3 )3C Cl -H2O (CH3)3COH (CH3 )3CO H (CH3)3C (CH3 )3C Cl H2O + ZnCl2 ZnCl2 + ZnCl2(OH) Cl - H + ZnCl2 δ δ or: + H + (CH3 )3CCHCH3 OH (3 ) (CH3)3CCH CH3 OH2 H2O - (CH3)2CCH CH3 CH3 ❁ ❂❃❄ (CH3 )2CCH(CH3 )2 Cl - (CH3 )2CCH(CH3 )2 Cl (4 ) C(CH3 )2 OH + H + C(CH3 )2 OH2 C(CH3 )2 - H2O ❅❆❇❈ CH3 CH3 CH3 CH3 Br (5) (CH3 )2C C(CH3)2 OH Br Ag + -AgBr CH3 C C(CH3)2 OH CH3 ❉❋❊✲●■❍ CH3 C C CH3 CH3 CH3 HO H + CH3CC(CH3 )3 O (6) OH C CH3 CH3 OH OH C CH3 CH3 OH C CH3 CH3 H + -H2O OH C CH3 CH3 O C CH3 CH3 - H (❏▲❑◆▼P❖❘◗❚❙ C CH3 OH CH3 CH3 CH3 HO CH3 CH3 HO CH3 CH3 O H + -