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Unformatted text preview: stereoisomer (B). Using your Chem 359 knowledge determine how to make the other epoxide. O O A B MCPBA Br O Br H H O Br H O Br Br Br H 2 O H 2 O H 2 O 1. 2. Base Base 3. Complete the following reactions (giving the starting material, reagent, intermediate, or product) as necessary. O I O O O O MCPBA MCPBA NaNH 2 O H H H 2 , Pd/C Br 2 Br Br 1 equiv I OH 1. I 2 2. Base O I OsO 4 OH OH Br Br Base HO OTs Base OH H H H 2 O Anhydrous OH H H or MCPBA O MCPBA X X X = Reaction doesn't work X 1. OsO4, H2O 2.TsCl, Pyridine...
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