The correct IUPAC name of...

The correct IUPAC name of

4-Isocyanobenzoic acid

4-Carbylaminebenzoic acid

4-Isonitrilebenzoic acid

None of these

Text Solution

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The correct Answer is:

For isocyanides radicofunctional names or functional class names are used if isocyanide group is present alone or if other group present is of a lower preference order. If other group of higher preference order is present, the prefix isocyano is used. Suffixes such as isonitrile or carbylamine are not allowed in IUPAC system.

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The correct IUPAC name is

(1) `CH_(3)-underset(2-"Bromo-3-chlorobutane")(underset(O)underset(||)(C)-underset(CH_(3))underset(|)(CH)-CH_(3))`

(2) `CH_(3)-underset(2,3-"Dimethylpentane")(underset(CH_(3))underset(|)(CH)-underset(CH_(2)CH_(3))underset(|)(CH)CH_(3))`

`underset(4-"Methylpent-2pne")(CH_3C-=C CH(CH_3)_2`

(4) `CH_(3)-underset(2,3-"Bromo-3-chlorobutane")(underset(Cl)underset(|)(CH)-underset(Br)underset(|)(CH)-CH_(3))`

The correct IUPAC name for the compound

sym-Trimethylbutanone

1,3,5-Trimethylbenzophenone

1-Keto-2, 4-6 trimethylcyclohexane

2, 4, 6-Trimethylcyclohexanone.

Give correct IUPAC name of

Ethyl -2 -ethyl -5,5 dimethyl cyclopentane carboxylate

Ethenyl-2-ethyl -5,5-dimethyl cyclopentane carboxylate.

Ethenyl -5-ethyl-2,2-dimethyl cyclopentanoate.

Ethenyl-5-ethyl-2,2-dimethyl cyclopentane carboxylate