4
7 4 Alcohols and
Alcohols and
Alcohols and
Alcohols and
Alcohols and
Phenols
Phenols
Phenols
Phenols
Phenols
Rationalised 2023-24
200
Chemistry
(ii) By hydroboration–oxidation: Diborane (BH3)2 reacts with alkenes
to give trialkyl boranes as addition product This is oxidised to
alcohol by hydrogen peroxide in the presence of aqueous sodium
hydroxide The addition of borane to the double bond takes place in such
a manner that the boron atom gets attached to the sp
2 carbon
carrying greater number of hydrogen atoms