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 .