Alcohols and Ethers
General methods of preparation of Alcohols
(v) By Grignard reagents : All the three types of monohydric alcohols (primary, secondary and tertiary alcohols) are obtained by the use of Grignard reagents and carbonyl compounds. The addition of RMgX on carbonyl compounds followed with hydrolysis yields alcohols.
(vi) By the reduction of carbonyl compounds : Reduction of aldehydes gives primary alcohol and
reduction of ketones gives secondary alcohol.
Note : tertiary alcohols can be obtained by this method.
(vii) By the reduction of acids and their derivatives :
RCOOR' RCH2OH + R'OH
Note : If C2H5OH + Na is used as reducing agent, the reduction is known as Bouveault-Blane reaction.