Aryl Halides and Phenols - Result Question 32

Passage

Reimer-Tiemann reaction introduces an aldehyde group, on to the aromatic ring of phenol, ortho to the hydroxyl group. This reaction involves electrophilic aromatic substitution. This is a general method for the synthesis of substituted salicylaldehydes as depicted below.

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35. The electrophile in this reaction is

(a) $:CHCl$

(b) ${ }^{+} CHCl _2$

(c) $: CCl _2$

(d) ${ }^{\bullet} CCl _3$

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Answer:

Correct Answer: 35. (c)

Solution:

Dichlorocarbene is the electrophile as shown above.