question_answer

In presence of NaOH, phenol react with \[CHC{{l}_{3}}\] to form o-hydroxy benzaldehyde. This reaction is called [BIT 1992; MP PMT 1990, 2002; AIIMS 1992; MP PET 1994; JIPMER 1999]

A)                 Riemer-Tiemann's reaction

B)                 Sandmeyer's reaction

C)                 Hoffmann's degradation reaction

D)                 Gattermann's aldehyde synthesis