Write the IUPAC name of the compound from their given structure.
(a)
(b)
(c)
(d)
(a)
(b)
(c)
(d)
(a) Step 1: Identification of functional group
The functional group present in the given structure is an alcohol (–OH). Hence, the suffix is '-ol'.
Step 2 : IUPAC name
The longest chain containing –OH has eight carbon atoms. Hence, the parent hydrocarbon is octane.
The –OH is on 3rd carbon and a substitute methyl group is attached at 6th carbon. Hence, the IUPAC name of this compound is 6−Methyloctan-3-ol..
Final answer:
6−Methyloctan-3-ol.
(b) Step 1 : Identification of functional group
The functional group present in the given structure is ketone (>C=O), hence suffix '-one'. Presence of two keto groups is shown by 'di', hence suffix becomes 'dione'.
Step 2 : IUPAC name
The two keto groups are at carbons 2nd and 4th. The longest chain contains 6 carbon atoms; hence, parent hydrocarbon is hexane. Thus, the IUPAC name of this compound is Hexane- 2,4-dione.
Final answer:
Hexane- 2,4-dione
(c) Step 1 : Identification of functional group
Here, two functional groups namely ketone and carboxylic acid are present. The principal functional group is the carboxylic acid group: hence the parent chain will be suffixed with 'oic' acid.
Step 2 : IUPAC name
Numbering of the chain starts from carbon of -COOH functional group. The keto group in the chain at carbon 5th is represent by 'oxo'.
The longest chain including the principal functional group has 6 carbon atoms; hence, the parent hydrocarbon is hexane. Thus, the IUPAC name of this compound is 5−Oxohexanoic acid.
Final answer:
5−Oxohexanoic acid
(d) Step 1 : Identification of functional group
The two C=C functional groups are present at carbon atoms 1st and 3rd, while the C≡C functional group is present at carbon 5th. These groups are represented by suffixes 'diene' and 'yne' respectively.
Step 2 : IUPAC name
The longest chain containing the functional groups has 6 carbon atoms; hence the parent hydrocarbon is hexane. Hence, the IUPAC name of this compound is Hexa-1,3-dien-5-yne.
Final answer:
Hexa-1,3-dien-5-yne.
The functional group present in the given structure is an alcohol (–OH). Hence, the suffix is '-ol'.
Step 2 : IUPAC name
The longest chain containing –OH has eight carbon atoms. Hence, the parent hydrocarbon is octane.
The –OH is on 3rd carbon and a substitute methyl group is attached at 6th carbon. Hence, the IUPAC name of this compound is 6−Methyloctan-3-ol..
Final answer:
6−Methyloctan-3-ol.
(b) Step 1 : Identification of functional group
The functional group present in the given structure is ketone (>C=O), hence suffix '-one'. Presence of two keto groups is shown by 'di', hence suffix becomes 'dione'.
Step 2 : IUPAC name
The two keto groups are at carbons 2nd and 4th. The longest chain contains 6 carbon atoms; hence, parent hydrocarbon is hexane. Thus, the IUPAC name of this compound is Hexane- 2,4-dione.
Final answer:
Hexane- 2,4-dione
(c) Step 1 : Identification of functional group
Here, two functional groups namely ketone and carboxylic acid are present. The principal functional group is the carboxylic acid group: hence the parent chain will be suffixed with 'oic' acid.
Step 2 : IUPAC name
Numbering of the chain starts from carbon of -COOH functional group. The keto group in the chain at carbon 5th is represent by 'oxo'.
The longest chain including the principal functional group has 6 carbon atoms; hence, the parent hydrocarbon is hexane. Thus, the IUPAC name of this compound is 5−Oxohexanoic acid.
Final answer:
5−Oxohexanoic acid
(d) Step 1 : Identification of functional group
The two C=C functional groups are present at carbon atoms 1st and 3rd, while the C≡C functional group is present at carbon 5th. These groups are represented by suffixes 'diene' and 'yne' respectively.
Step 2 : IUPAC name
The longest chain containing the functional groups has 6 carbon atoms; hence the parent hydrocarbon is hexane. Hence, the IUPAC name of this compound is Hexa-1,3-dien-5-yne.
Final answer:
Hexa-1,3-dien-5-yne.
