Chemistry Exam > Chemistry Questions > Which of the following compounds gives a prim...
Start Learning for Free
Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?
- a)2-methyloxirane
- b)ethylene oxide
- c)ethyl formate
- d)carbon dioxide
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
Which of the following compounds gives a primary alcohol upon reaction...
Primary alcohols are formed when a Grignard reagent reacts with an epoxide. In this case, the compound that gives a primary alcohol upon reaction with phenylmagnesium bromide is ethylene oxide.
- Epoxides are cyclic ethers with a three-membered ring containing an oxygen atom.
- Phenylmagnesium bromide (C6H5MgBr) is a Grignard reagent that contains a carbon-magnesium bond.
- Grignard reagents are highly reactive and can undergo nucleophilic addition reactions with a variety of electrophilic compounds.
- When phenylmagnesium bromide reacts with ethylene oxide, the oxygen atom of the epoxide is nucleophilically attacked by the carbon atom of the Grignard reagent.
- This results in the opening of the epoxide ring and the formation of a new carbon-oxygen bond.
- The product of this reaction is a primary alcohol, which has a hydroxyl group (-OH) directly attached to a carbon atom that is bonded to only one other carbon atom.
- In the case of ethylene oxide, the reaction with phenylmagnesium bromide would result in the formation of 1-phenylethanol.
- The hydroxyl group (-OH) is directly attached to the carbon atom that was previously part of the epoxide ring, which makes it a primary alcohol.
- The other compounds listed, 2-methyloxirane, ethyl formate, and carbon dioxide, do not have a carbon atom that can react with the Grignard reagent to form a primary alcohol.
- Therefore, only ethylene oxide gives a primary alcohol upon reaction with phenylmagnesium bromide.
- Epoxides are cyclic ethers with a three-membered ring containing an oxygen atom.
- Phenylmagnesium bromide (C6H5MgBr) is a Grignard reagent that contains a carbon-magnesium bond.
- Grignard reagents are highly reactive and can undergo nucleophilic addition reactions with a variety of electrophilic compounds.
- When phenylmagnesium bromide reacts with ethylene oxide, the oxygen atom of the epoxide is nucleophilically attacked by the carbon atom of the Grignard reagent.
- This results in the opening of the epoxide ring and the formation of a new carbon-oxygen bond.
- The product of this reaction is a primary alcohol, which has a hydroxyl group (-OH) directly attached to a carbon atom that is bonded to only one other carbon atom.
- In the case of ethylene oxide, the reaction with phenylmagnesium bromide would result in the formation of 1-phenylethanol.
- The hydroxyl group (-OH) is directly attached to the carbon atom that was previously part of the epoxide ring, which makes it a primary alcohol.
- The other compounds listed, 2-methyloxirane, ethyl formate, and carbon dioxide, do not have a carbon atom that can react with the Grignard reagent to form a primary alcohol.
- Therefore, only ethylene oxide gives a primary alcohol upon reaction with phenylmagnesium bromide.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following compounds gives a primary alcohol upon reaction...
Ethylene oxide reacts with Grignard reagents to give, after protonation, primary alcohols with two additional carbon atoms.
|
Explore Courses for Chemistry exam
|
|
Similar Chemistry Doubts
Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer?
Question Description
Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer?.
Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Chemistry.
Download more important topics, notes, lectures and mock test series for Chemistry Exam by signing up for free.
Here you can find the meaning of Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following compounds gives a primary alcohol upon reaction with phenylmagnesium bromide?a)2-methyloxiraneb)ethylene oxidec)ethyl formated)carbon dioxideCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Chemistry tests.
|
|
Explore Courses for Chemistry exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup