Iodoform reaction with sodium hypoiodite is also used for the detection of CH3 – group or CH3CH( OH)- group by producing yellow solid CHI3.
( v) Aldol condensation
Its further condensation gives phorone,
This reaction is exhibited by those aldehydes and ketones which have at least one a-hydrogen.
( vi) Cross aldol condensation Base catalysed crossed aldol condensation between an aromatic aldehyde and an aliphatic aldehyde or ketone is called Claisen-Schmidt condensation or Claisen reaction.