442单分子亲核取代反应(SN1) substitution, nucleophilic unimolecular (CH3)3C-Br (CH 3)3C+OH 快 (CH33C--OHOrganic Chemistry Organic Chemistry Xiamen Xiamen University University 4.4.2 单分子亲核取代反应(S N1) substitution, nucleophilic, unimolecular 4.4.2 单分子亲核取代反应(S N1) substitution, nucleophilic, unimolecular (C H 3 ) 3 C Br (C H 3 ) 3 C (C H 3 ) 3 C OH 慢 OH 快