Which of the following is obtained from the reduction of nitrobenzene) aniline?
Which of the following reagents reduces nitrobenzene to give aniline? C6H5NO2Zn/NH4OH→C6H5NHOH While all other reagents produce aniline.
Which of the following is a reduction product of nitrobenzene?
Full answer: When a nitro compound is reduced, Amines form. Reduction of bulky nitrobenzenes using zinc and sodium hydroxide. The reduction of NO2 is such that it is converted to an amine, which is attached to itself and then attached to the benzene ring.
An example of how nitrobenzene is reduced to aniline?
Nitrobenzene is reduced to aniline Tin and concentrated hydrochloric acid. Instead of Sn, Zn or Fe can also be used. An aniline salt is obtained from this reaction. Aqueous NaOH was then added to the aniline salt to obtain the liberated aniline.
How to get aniline from nitrobenzene?
Aniline is prepared commercially Catalytic Hydrogenation of Nitrobenzene or Interaction of Ammonia with Chlorobenzene. The reduction of nitrobenzene can also be carried out with iron drilling in aqueous acid. Aniline, a primary aromatic amine, is a weak base that forms salts with inorganic acids.
Why is aniline ortho and para directed?
The NH2 groups in aniline are ortho and para directing groups because They can release electrons to the ring due to resonance, while they withdraw electrons from the aromatic ring due to the +1 effect. The resonance structure of aniline shows that negative charges develop in the ortho and para positions.
Which of the following yields aniline by reduction of nitrobenzene?
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Where can I find aniline?
Some foods may contain small amounts of aniline, such as Corn, Grain, Rhubarb, Apple, Bean and Rapeseed Cakes (Animal food). Aniline has also been found to be a volatile component of black tea. Aniline was detected in drinking water and also in surface water.
Which of the following is more basic than aniline?
Benzylamine C6H5 – NH2 Due to the +I effect, benzyl C6H5CH2 is an electron donating group and therefore more basic than aniline. Therefore, it is able to increase the electron density of the N of the -NH2 group.
How is aniline converted to benzonitrile?
Answer: Aniline is converted to benzonitrile: When aniline is treated with sodium nitrite and HCl at lower temperatures, it forms benzenediazonium chloride. The benzenediazonium chloride reacts with CuCN to form benzonitrile.
How to convert aniline to iodobenzene?
To convert aniline to iodobenzene, it react with as a catalyst. This leads to the formation of intermediate compounds called benzodiazo chlorides. Iodobenzene is formed when benzodiazonium chloride undergoes a chemical reaction in the presence of potassium iodide as a catalyst.
What happens when nitrobenzene is treated with Zn HCl?
When nitrobenzene is reduced by metals and acids (Sn/HCl, Zn/HCl, etc.), get aniline. The intermediates nitrosobenzene and phenylhydroxylamine cannot be separated because they reduce faster than nitrobenzene.
What are the products of the reduction of nitrobenzene in an alkaline medium?
In weakly acidic medium, nitrobenzene is electrolytically reduced to form aniline, but in strongly acidic medium p-aminophenol. In alkaline medium, various mononuclear and dinuclear reduction products such as azobenzene and azobenzene are obtained. Therefore, the correct option is option C, p-aminophenol.
What is a reduction reaction?
reduce is Electron transfer between species A chemical reaction in which an element gains electrons or reduces its oxidation state. Reduction chemical reactions involve the addition of electrons associated with a single atom or a group of atoms.
How to convert aniline to fluorobenzene?
Tip: Convert aniline to benzene first, you can convert aniline to fluorobenzene diazonium chloride The benzene diazonium is then chlorinated to fluorobenzene. The whole reaction will be that the amine group in the benzene ring is replaced by a fluorine atom.
How to convert aniline to bromobenzene?
When aniline is treated with nitrite or sodium nitrite and HCl at cooling temperature, it converts to the diazonium salt benzenediazonium chloride, it undergoes a Sandmeyer reaction, treatment with CuBr yields bromobenzene, or it can also occur Gartman’s response Where are the diazonium salts…
What are the properties of aniline?
Aniline is an organic compound with the molecular formula C6H5NH2.Aniline is linked by a phenyl group to an amino group Simplest Aromatic Amines.
What is the Difference Between Aniline and Benzylamine?
The key difference between aniline and benzylamine is that The amine group of aniline is directly attached to the benzene ring, while the amine group of benzylamine is indirectly attached to the benzene ring, via the -CH2- group. Aniline and benzylamine are aromatic organic compounds.
How is benzoic acid converted to aniline?
How to convert benzoic acid to aniline?
- Benzoic acid is treated with thionyl chloride to form benzoyl chloride, which is then treated with ammonia to give benzamide.
- Benzamide undergoes Hoffmann bromide degradation by reaction with Br2 and NaOH to form aniline.
How to convert aniline to toluene?
Aniline treatment Sodium nitrite in hydrochloric acid Benzene diazonium chloride is formed at a temperature of 423K, which is then hydrolyzed by the weak acid benzene. Benzene is treated with aluminum chloride to form toluene.
Which aniline is the most basic?
In aniline, p-methoxyaniline and p-toluidine, the lone pair of electrons on Natom is delocalized on the benzene ring, while the benzylamine It’s non-local and easier to donate. Therefore benzylamine is the most basic of the given.
Which is more basic, aniline or methylaniline?
Aniline is an aromatic amine. The basicity of aromatic amines depends on the availability of lone pairs. …in the case of aniline, the lone pair density is less than methylamine due to conjugation.For this reason, aniline less alkaline than methylamine.
Why is aniline more basic than ammonia?
Because ammonia loses electron pairs easily and aniline cannot, so ammonia is considered a stronger base than aniline. …we can also say that in aniline, the lone pair of nitrogen atoms are conjugated to the pi electrons of the benzene ring and thus participate in the resonance.
What is aniline used for?
Aniline is a representative compound of nitrogen-containing aromatic compounds, mainly used as Chemical intermediates for the production of polymers, pesticides, pharmaceuticals and dyes [110].
What is the importance of aniline?
Aniline – uses
Aniline is For the rubber industry, for processing rubber chemicals and products Such as car tires, balloons, gloves, etc. For the production of paracetamol, Tylenol, acetaminophen and other drugs.
What is the role of aniline?
Produces toxic nitrogen oxides when burned. Used in the manufacture of other chemicals, especially dyes, photographic chemicals, agrochemicals, etc. Aniline is a primary aromatic amine in which an amino function replaces a benzene hydrogen.
How to convert aniline to phenol?
explain:
- To convert phenol ( ) to aniline ( ), it must be heated with ammonia in the presence of a catalyst.
- The catalyst used in this reaction is zinc chloride.
- When phenol is heated with ammonia at 473K in the presence of zinc chloride as a catalyst, it loses the hydroxyl groups present in it.
