2.被四氧化锇氧化OsO4 Et,O H,O or thF H O==0 HO OH cis-1, 2-Cyclohexanediol ①D 顺式加成 ⑨DOrganic Chemistry Organic Chemistry Xiamen Xiamen University University 2. 被四氧化锇氧化 OsO 4 Os O O O O H H Os O O H 2 O HO OH H H cis- 1 , 2 - C ycl o hexaned i o l O O or T HF Et2 O 顺式加成