The reaction of Propene with HOCl(Cl2+H2 O) proceeds through the intermediate [2016] (a) CH3-⊕C

Name: Problem 210, Chapter 24: A Complete Resource Book in Chemistry for JEE Main 2019
Uploaded: 2021-10-02T14:11:19-08:00
Duration: 1 min 42 s
Channel: Raghvendra Singh
Description: The reaction of Propene with HOCl(Cl2+H2 O) proceeds through the intermediate [2016] (a) CH3-⊕C H(OH)-+C H2 (b) CH3-CH-CH2 Cl (c) CH3-CHCl-CH2 (d) CH3-CH-CH2 OH

step 1 Hello, portion is the reaction of propine with HOCL proceed through the intermediate. So we have

Question

The reaction of Propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate [2016] (a) $\mathrm{CH}_3-\underset{\oplus}{\mathrm{C}} \mathrm{H}(\mathrm{OH})-\stackrel{+}{\mathrm{C}} \mathrm{H}_2$ (b) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$ (c) $\mathrm{CH}_3-\mathrm{CHCl}-\mathrm{CH}_2$ (d) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}$

   The reaction of Propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate
[2016]
(a) $\mathrm{CH}_3-\underset{\oplus}{\mathrm{C}} \mathrm{H}(\mathrm{OH})-\stackrel{+}{\mathrm{C}} \mathrm{H}_2$
(b) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$
(c) $\mathrm{CH}_3-\mathrm{CHCl}-\mathrm{CH}_2$
(d) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}$

A Complete Resource Book in Chemistry for JEE Main 2019

Atul Singhal 1st Edition

Chapter 24, Problem 210

Instant Answer

Solved by Expert Raghvendra Singh

10/02/2021

Step 1

We have propene (CH₃-CH=CH₂) reacting with HOCl, which is formed from Cl₂ + H₂O. Show more…

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The reaction of Propene with $\mathrm{HOCl}\left(\mathrm{Cl}_2+\mathrm{H}_2 \mathrm{O}\right)$ proceeds through the intermediate [2016] (a) $\mathrm{CH}_3-\underset{\oplus}{\mathrm{C}} \mathrm{H}(\mathrm{OH})-\stackrel{+}{\mathrm{C}} \mathrm{H}_2$ (b) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{Cl}$ (c) $\mathrm{CH}_3-\mathrm{CHCl}-\mathrm{CH}_2$ (d) $\mathrm{CH}_3-\mathrm{CH}-\mathrm{CH}_2 \mathrm{OH}$

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Key Concepts

Electrophilic Addition Mechanism

This concept refers to the reaction of an electron?rich alkene with an electrophile, resulting in the formation of a transient intermediate. In this mechanism, the alkene double bond attacks the electrophile (in this case, a species derived from HOCl), leading to the creation of a positively charged intermediate before the nucleophile attacks to form the final product.

Halonium Ion Intermediate

A halonium ion is a three-membered ring structure that forms when an alkene reacts with a halogen or a related electrophilic halogen species. Instead of forming a classical carbocation, the halogen bridges the two carbons of the original double bond, creating a cyclic intermediate that is then opened by a nucleophile (such as water). This intermediate is central to understanding the mechanism behind halohydrin formation.

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