Ring Opening in Acid Trans diol formed in water solvent H',H2O HO H OH Alkoxy alcohol formed in alcohol solvent. O: H',CH3OH HO H H H OCH3 1.2-Dihalide formed with HI or HBr. => Chapter 14 25 Chapter 14 25 Ring Opening in Acid • Trans diol formed in water solvent. • Alkoxy alcohol formed in alcohol solvent. • 1,2-Dihalide formed with HI or HBr. => H O H H + , H2O H HO H OH H O H H + , CH3OH H HO H OCH3