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Chapter 4: Problem 49

IUPAC name of allyl chloride is (a) 2 -chloropropene (b) 3 -chloropropene (c) 1 -chloropropene (d) 1 -(chloromethyl)ethane

Short Answer

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Answer: (b) 3-chloropropene

Step by step solution

01

Understanding Allyl Chloride Structure

Allyl chloride is an organic compound with the molecular formula C3H5Cl. It consists of a three-carbon chain with a double bond between the first and second carbon, and a chlorine atom bonded to the third carbon. As it is an alkene, let's now proceed to step 2 and assign the correct IUPAC name to the molecule.
02

Assign the Parent Name

The first step in assigning the correct IUPAC name is to identify the parent chain. The parent name will be based on the longest continuous carbon chain containing the double bond. In this case, the parent name is "propene" because the compound contains three carbons and a double bond.
03

Determining the Position of the Double Bond and Chlorine Atom

Now, we must determine the location of the double bond within the parent chain. The numbering of the carbons should start from the end closest to the double bond. In this case, the double bond is between the first and second carbons, so the numbering starts from this side. The chlorine atom is bonded to the third carbon, so it will be numbered as 3.
04

Selecting the Correct IUPAC Name

We can now put together the full IUPAC name. Since the chlorine atom is attached to the 3rd carbon and there is a double bond between carbons 1 and 2, the IUPAC name is 3-chloropropene. Therefore, the correct answer is: (b) 3-chloropropene

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Most popular questions from this chapter

Which of the following reactions will give benzyl chloride? (a) \(\mathrm{C}_{6} \mathrm{H}_{6}+\mathrm{HCHO}+\mathrm{HCl} \stackrel{\mathrm{ZnCl}_{3}}{\longrightarrow}\) (b) \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}_{3}+\mathrm{Cl}_{2} \stackrel{\mathrm{hv}}{\Delta}\) (c) \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}_{3}+\mathrm{SO}_{2} \mathrm{Cl}_{2} \stackrel{\text { peroxide }}{\longrightarrow}\) (d) \(\mathrm{C}_{6} \mathrm{H}_{5}-\mathrm{CH}_{3}+\mathrm{SOCl}_{2} \rightarrow\)

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When 3,3-dimethyl-2-butanol is treated with dilute acid, the most stable carbocation formed is (a) 3,3-dimethyl-2-butyl cation (b) 3,3 -dimethyl-1-butyl cation (c) 2,3-dimethyl-2-butyl cation (d) 2-methyl-2-pentyl cation
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