for the
Write IUPAC names
following compounds.
i.
H
Br Br
O
ii.
O
H
J
iii.
O
iv.
CHO
V.
O
Answers
Explanation:
11th
Chemistry
Organic Chemistry - Some Basic Principles and Techniques
Nomenclature of Organic Compounds
Write the IUPAC name of the...
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Asked on December 20, 2019 by
Sumitha Rajora
Write the IUPAC name of the following compounds:
i) (CH
3
)
2
CHCH(Cl)CH
3
ii) CH
3
CH
2
C(CH
3
)
2
CH
2
I
iii) CH
3
CH(CH
3
)CH(Br)CH
3
iv) CH
3
C(Cl)(C
2
H
5
)CH
2
CH
3
v) CH
3
CH=CHC(Br)(CH
3
)
2
medium
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Solution:-
(i)CH
3
−
CH
∣
CH
3
−
CH
∣
Cl
−CH
3
The IUPAC name of the above compound is 2-chloro-3-methylbutane.
Here 2-chloro is for the chloride group (−Cl) attached at position C−2 while 3-methyl is for the methyl group (−CH
3
) attached at the position C−3 and butane is for the long chain of 4 carbon atoms.
Hence the IUPAC name of the above compound is 2-chloro-3-methylbutane.
(ii)CH
3
−CH
2
−
CH
3
∣
C
∣
CH
3
−
CH
2
∣
I
The IUPAC name of the above compound is 1-iodo-2,2-dimethyl butane.
Here 1-iodo is for the iodide group (−I) attached at position C−1 while 2,2-dimethyl is for the 2 methyl groups (−CH
3
) attached at the same position C−3 and butane is for the long chain of 4 carbon atoms.
Hence the IUPAC name of the above compound is 1-iodo-2,2-dimethyl butane.
(iii)CH
3
−
CH
∣
CH
3
−
CH
∣
Br
−CH
3
The IUPAC name of the above compound is 2-bromo-3-methylbutane.
Here 2-bromo is for the bromide group (−Br) attached at position C−2 while 3-methyl is for the methyl group (−CH
3
) attached at the position C−3 and butane is for the long chain of 4 carbons.
Hence the IUPAC name of the above compound is 2-bromo-3-methylbutane.
(iv)CH
3
−
C
2
H
5
∣
C
∣
Cl
−CH
2
−CH
3
The IUPAC name of the above compound is 3-chloro-3-methylpentane.
Here 3-chloro is for the chloride group (−Cl) attached at position C−3 while 3-methyl is for the methyl group (−CH
3
) attached at the position C−3 and pentane is for the long chain of 5 carbon atoms.
Hence the IUPAC name of the above compound is 3-chloro-3-methyl pentane.
(v)CH
3
−CH=CH−
CH
3
∣
C
∣
Br
−CH
3
The IUPAC name of the above compound is 4-bromo-4-methylpent-2-ene.
Here 4-bromo is for the bromide group (−Br) attached at position C−4 while 4-methyl is for the methyl group (−CH
3
) attached at the position C−4 and pent-2-ene is for the long chain of 5 carbon atoms havinf double bond at position C−2.
Hence the IUPAC name of the above compound is 4-bromo-4-methylpent-2-ene.