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Reimer-Tiemann reaction introduces an al...

Reimer-Tiemann reaction introduces an aldehyde group on to the aromatic ring of phenol, ortho to the hydroxyl group. This reacrtion involves electrophilic aromatic subsititution. It is a general method for the synthesis of subsituted salicyladehydes as depiced below:

Which one of the following reagents is used in the above reaction ?

A

aq. NaOH +`CH_(3)Cl`

B

aq. `NaOH+CH_(2)Cl_(2)`

C

aq. `NaOH+CHCl_(3)`

D

aq. `NaOH+CCl_(4)`

Text Solution

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The correct Answer is:
C
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RESONANCE ENGLISH-AROMATIC COMPOUNDS -Exercise -3 Part-I
  1. CH(3) NH(2) + CHCl(3) + KOH rarr Nitrogen containing compound + KCl + ...

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  2. What are P & Q.

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  3. Reimer-Tiemann reaction introduces an aldehyde group on to the aromati...

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  4. Reimer-Tiemann reaction introduces an aldehyde group on to the aromati...

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  5. Reimer-Tiemann reaction introduces an aldehyde group on to the aromati...

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  6. In the reaction is/are:

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  7. Match the reactions in Column I with appropriate options in Column II.

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  8. The major product of the following reaction is :

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  9. Amongst the compounds given, the one that would form a brilliant color...

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  10. In the following reaction, the products formed is(are)

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  11. The major product(s) of the following is (are):

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  12. P and Q are isomers of dicarboxylic acid C(4)H(4)O(4). Both decolorize...

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  13. In the following reaction, sequences V and W are respectively.

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  14. The reactivity of compound Z with different halogens under appropriat...

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  15. The the identification of beta-napthol using dye test, it is necessary...

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  16. Match the four starting materials (P,Q,R,S) gien in List-I with the co...

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  17. Among the following, the number of reaction(s) that produce(s) benzal...

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  18. The major product U in the following reactions is

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  19. In the following reactions, the major product W is:

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  20. The product(s) of the following reactions sequence is(are)

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