
(a)
Interpretation:
The product obtained in the reaction of 3-acetylfuran with nitric acid and sulfuric acid has to be given.
Concept Introduction:
The reaction of sulfuric acid and nitric acid results in the generation of nitronium ion which attacks the most nucleophilic position of the reactant. The nucleophilicity of the carbon atoms present in the furan depends upon the nature of substituents attached to it.
(b)
Interpretation: The product formed in the reaction of 2-nitrothiophene with bromine has to be given.
Concept Introduction:
The reaction of bromine with alkyl and aryl groups is a type of electrophilic substitution reaction in which
(c)
Interpretation: The product obtained in the reaction of 4-dimethylaminepyridine with methyl iodide has to be given.
Concept Introduction:
Tertiary
(d)
Interpretation: The product obtained in the reaction of pyridione with
Concept Introduction:
Phosphorus trichloride reacts with hydroxyl group and leads to the formation of
(e)
Interpretation: The product obtained in the reaction of 1,4-dimethylpyridine hydroxide with formic acid and hydrochloric acid has to be given.
Concept Introduction:
Tertiary amines exist as quaternary ammonium salts in the electrolytic solution. Quaternary ammonium salts are the salts of nitrogen in which four groups are attached to nitrogen and it exhibits a positive charge which is stabilized by the negative charges present in the solution.
(f)
Interpretation: The product obtained in the reaction of pyrrole with
Concept Introduction:
The alkyl group attached to magnesium bromide acts as a nucleophile because carbon atom is more electronegative as compared to magnesium due to which carbon atom exhibits partial negative charge in the reaction of Grignard reagent.

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Chapter 19 Solutions
Organic Chemistry (8th Edition)
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