Hydrogenation
H_2 in Pd, Ni, Rh or Pt
Hydrohalogenation
H-X
Hydrobromination in peroxides
HBr in peroxides (ROOR)
Acid-catalyzed hydration
H+/H2O (acid) e.g. H2SO4
Oxymercuration-demercuration
H2SO4, HgSO4, H2O
Hydroboration-oxidation
BH3, THF or H2O2, -OH @ room temp
Halogenation
X2 in CCl4 (solvent)
Mixed-halogenation
X-Y in CCl4
Halohydrin formation
X2 in H2O or NXS in H2O
Dihydroxylation
OsO4, NaHSO3, then H2O
Epoxidation
RCO3H (peroxyacid)