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Which of the following reactions will not result in the formation of anisole?
- a)Phenol + dimethyl sulphate in presence of a base.
- b)Sodium phenoxide is treated with methyl iodide.
- c)Reaction of diazomethane with phenol.
- d)Reaction of methylmagnesium iodide with phenol.
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Which of the following reactions will not result in the formation of ...
Phenol has active (acidic) hydrogen so it reacts with CH3Mgl to give CH4, and not anisole
C6H5OH + CH3MgI------> CH4 + C6H5OMgI
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Community Answer
Which of the following reactions will not result in the formation of ...
Reaction options:
a) Phenol + dimethyl sulphate in presence of a base.
b) Sodium phenoxide + methyl iodide.
c) Diazomethane + phenol.
d) Methylmagnesium iodide + phenol.
Explanation:
a) Phenol + dimethyl sulphate in presence of a base:
This reaction is known as the Williamson ether synthesis and is used to form ethers. In this case, phenol reacts with dimethyl sulphate in the presence of a base to form anisole. The base deprotonates phenol to generate phenoxide ion, which then reacts with dimethyl sulfate to give anisole. Therefore, this reaction does result in the formation of anisole.
b) Sodium phenoxide + methyl iodide:
This reaction is also known as the Williamson ether synthesis. Sodium phenoxide is a strong base and it deprotonates phenol to generate phenoxide ion. However, in this reaction, the phenoxide ion does not react with methyl iodide to form anisole. Instead, it reacts with methyl iodide to form o-methylphenol. Therefore, this reaction does not result in the formation of anisole.
c) Diazomethane + phenol:
This reaction involves the reaction of diazomethane with phenol. Diazomethane is a highly reactive and potentially explosive compound. The reaction of diazomethane with phenol is not a known reaction and is unlikely to occur. Therefore, this reaction does not result in the formation of anisole.
d) Methylmagnesium iodide + phenol:
This reaction is known as the Grignard reaction and is used to form alcohols. In this case, methylmagnesium iodide reacts with phenol to form a tertiary alcohol. The reaction does not result in the formation of anisole. Therefore, the correct answer is option 'D'.
Conclusion:
Among the given reaction options, the reaction of methylmagnesium iodide with phenol (option 'D') does not result in the formation of anisole.
a) Phenol + dimethyl sulphate in presence of a base.
b) Sodium phenoxide + methyl iodide.
c) Diazomethane + phenol.
d) Methylmagnesium iodide + phenol.
Explanation:
a) Phenol + dimethyl sulphate in presence of a base:
This reaction is known as the Williamson ether synthesis and is used to form ethers. In this case, phenol reacts with dimethyl sulphate in the presence of a base to form anisole. The base deprotonates phenol to generate phenoxide ion, which then reacts with dimethyl sulfate to give anisole. Therefore, this reaction does result in the formation of anisole.
b) Sodium phenoxide + methyl iodide:
This reaction is also known as the Williamson ether synthesis. Sodium phenoxide is a strong base and it deprotonates phenol to generate phenoxide ion. However, in this reaction, the phenoxide ion does not react with methyl iodide to form anisole. Instead, it reacts with methyl iodide to form o-methylphenol. Therefore, this reaction does not result in the formation of anisole.
c) Diazomethane + phenol:
This reaction involves the reaction of diazomethane with phenol. Diazomethane is a highly reactive and potentially explosive compound. The reaction of diazomethane with phenol is not a known reaction and is unlikely to occur. Therefore, this reaction does not result in the formation of anisole.
d) Methylmagnesium iodide + phenol:
This reaction is known as the Grignard reaction and is used to form alcohols. In this case, methylmagnesium iodide reacts with phenol to form a tertiary alcohol. The reaction does not result in the formation of anisole. Therefore, the correct answer is option 'D'.
Conclusion:
Among the given reaction options, the reaction of methylmagnesium iodide with phenol (option 'D') does not result in the formation of anisole.
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Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer?
Question Description
Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer?.
Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following reactions will not result in the formation of anisole?a)Phenol + dimethyl sulphate in presence of a base.b)Sodium phenoxide is treated with methyl iodide.c)Reaction of diazomethane with phenol.d)Reaction of methylmagnesium iodide with phenol.Correct answer is option 'D'. Can you explain this answer?.
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