H2
Pt
+
Br
HI
Br
HBr
peroxide
OH
p.H2SO4
H2O
H
1)BH3.THF
OH
2)H2O2, NaOH
Br
Br2
Br
CCl4
OH
Br2
Br
H2O
O
RCO3H
OH
1)OsO4
OH
2)H2O2
O
1)O3
2)DMS
O
OH
+
H
OH