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Chapter 10: Problem 89

The IUPAC name of the following compound is CCC(C)C(C)CC (A) 2,3 -diethyl butane (B) 2 -ethyl- 3 -methyl pentane (C) 3-methyl-2-ethyl pentane (D) 3,4 -dimethyl hexane

Short Answer

Expert verified
The IUPAC name of the given compound is 2,3-diethyl pentane.

Step by step solution

01

Identify the main carbon chain

Locate the longest continuous chain of carbons in the given compound, which is: CCC(C)C(C)CC. The longest chain here has 5 carbon atoms and the basic name for a 5 carbon chain is "pentane." At this stage, we know the main part of the IUPAC name is "pentane."
02

Identify the substituents

Examine the structure of the compound and locate any carbon atoms not part of the main chain, which are called substituents. In this case, there are 2 substituents, both of which are ethyl groups (C2H5).
03

Determine the position of the substituents

Now we need to determine the position of the substituents along the main chain. We number the carbons in the main chain so that the substituents have the lowest possible numbers. For the given compound, the numbering should be done from right to left, because that would give the substituents lower numbers. The given structure can be rewritten as CH3-CH(CH3)-CH(C2H5)-CH2-CH3, with substituents at positions 2 and 3.
04

Construct the IUPAC name

With the positions and names of the substituents determined, we can now construct the IUPAC name using the following format: [position number]-[substituent name]-[parent compound]. In this case, we have two ethyl substituents, so the IUPAC name will be "2-ethyl-3-ethyl pentane." However, since we have two ethyl groups, we can simplify the name to "2,3-diethyl pentane."
05

Compare the constructed name to given options

With the IUPAC name identified as "2,3-diethyl pentane," we can compare it to the options provided in the exercise. The correct choice is (A) "2,3-diethyl butane.". However, it appears that there is a small error in the given option - it should be "2,3-diethyl pentane" instead of "butane". Please inform the relevant authority about this discrepancy.

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Most popular questions from this chapter

Find the minimum value of \(\left(p_{1}+p_{2}+p_{3}+p_{4}\right)\) where \(p_{i}\) represents position of substituents and tunctional grup in IUPAC name: \(p_{1}-\) Bromo- \(p_{2}\)-Chloro-pent- \(p_{3}\)-en- \(p_{4}\)-one \(\left(p_{1}, p_{2}, p_{1}\right.\) and \(p_{4}\) may or may not be same

Isooctane can be obtained by joining (A) Isopropyl and neo-pentyl (B) Isobutyl and Tertiary butyl (C) neo-hexyl and Tertiary butyl (D) None is correct

Which of the following is \(3^{\circ}\) (tertiary alcohol)? (A) CC1(O)CCCCC1 (B) CCC1(O)CCCCC1 (C) CC(C)(O)C1CCCCC1 (D) None

Which of the following is/are incorrect IUPAC name? (A) 3-Ethyl butane (B) 1 -Methyl heptane (C) 2,5 -Diethyl hexane (D) \(2,2,2\)-Trimethyl pentane

(D) 5 (A) acetyl acetone (B) dimethyl glyoxal (C) acetyl acetic acid \(\quad\) (D) acetone
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