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Nomenclature of Aromatic Compounds

Name the foll...

Question

Name the following compound according to IUPAC?

A

5-cyano-2-formylbenzamide

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B

6-carbamoyl-4-cyanobenzaldehyde

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C

5-cyano-2-formylbenzaldehyde

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D

2-carbamoyl-4-cyanobenzaldehyde

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Solution

The correct option is A 5-cyano-2-formylbenzamide
The choice of principal functional group is made on the basis of order of preferences:
Amide > nitrile > aldehyde
Prefix used for nitrile- cyano
aldehyde- formyl
Suffix used for amide- amide

So, the correct IUPAC name will be 5-cyano-2-formylbenzamide

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Nomenclature of Aromatic Compounds

Standard XII Chemistry

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