碱催化: o 慢 RcH-c—R+:OH RcH—c—R RCH=C—R,/+ H2o H 快 RcH=c—R' R—c=cHR+OH OH rganIc C emIstry碱催化： O H H CH R' O R H R CH OH R' OH CH R' O R CH R' O R CH R' O R + OH C + : + H2 O C + C C C 慢 快