Alkene to Glycol

Syn-Addition Diol Formation

1. $\mathrm{OsO}{}_4$
2. $\mathrm{NaHSO}{}_3,\mathrm{H}{}_2\mathrm{O}$

Anti-Addition Diol Formation

1. $m\text{-}\mathrm{CPBA}$ (mCPBA)