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it is used as an anti-atherosclerotic agent and also in the manufacture of dyes and perfumes.
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How would you convert benzophenone into benzanilide?
Benzophenone can be converted into benzanilide by reacting it with aniline in the presence of a base, such as potassium hydroxide. The reaction proceeds via nucleophilic aromatic substitution, where the aniline replaces the oxygen in benzophenone, forming benzanilide. The product can be isolated and purified by techniques such as recrystallization.
What is the procedure of recrystallisation of benzanilide?
To recrystallize benzanilide, you would first dissolve it in a hot solvent (such as ethanol) until it forms a clear solution. Next, slowly cool the solution to allow crystals to form. Filter the crystals, wash them with a cold solvent to remove impurities, and then allow them to dry to obtain pure benzanilide crystals.
Why ethanol is used in recrystallization of benzanilide?
Ethanol is often used in the recrystallization of benzanilide because it is a good solvent for benzanilide at high temperatures. When the mixture is cooled, benzanilide becomes less soluble in ethanol, leading to the formation of pure crystals as it precipitates out of the solution. Ethanol also helps to minimize impurities in the final crystal structure of benzanilide.
What is the reaction of benzoyl chloride with aniline?
Benzoyl chloride reacts with aniline to form N-phenylbenzamide. In the reaction, the chlorine atom of benzoyl chloride is replaced by the amino group of aniline. The reaction is often carried out in the presence of a base to help neutralize the hydrogen chloride byproduct.
Why benzanilide not soluble in water?
Benzanilide is not soluble in water because it is a nonpolar compound, meaning it does not have any charged or polar groups that can interact with water molecules through hydrogen bonding. Instead, benzanilide's nonpolar nature leads to weak van der Waals interactions with water, resulting in poor solubility.
What are the physical properties of Benzanilide?
One of the physical properties of Benzanilide is that its melting point is 163 Degrees Celsius. Its boiling point is 117 Degrees Celsius. Benzanilide is in the form of white crystals that are like needles.
Synthesis of benzanilide from benzoic acid?
To synthesize benzanilide from benzoic acid, the carboxylic acid group of benzoic acid needs to be converted into an amide group. This can be achieved through a reaction with aniline using a dehydrating agent such as thionyl chloride or phosphorus trichloride. The reaction usually takes place at an elevated temperature under reflux conditions, yielding benzanilide and hydrogen chloride as byproduct. Purification of the crude product can be done through recrystallization in a suitable solvent.
What is the use of benzenilide?
Benzanilide is used as an intermediate in organic synthesis to produce various compounds like pharmaceuticals, dyes, and fragrances. It is also used as a building block in the manufacturing of other chemicals due to its reactivity and versatility.
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