Hydrogentaion of Arene: Why Double Bond Not Broken?

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In summary, hydrogenation of arene is a chemical process that involves adding hydrogen gas to an arene compound to form a saturated hydrocarbon. The double bond in arene is not broken during this process, as it occurs under mild conditions. The rate of hydrogenation is influenced by factors such as temperature, pressure, and catalysts. The products of hydrogenation are saturated hydrocarbons, and this process has various applications in industries such as petroleum, plastics, food, and pharmaceuticals.
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somecelxis
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Homework Statement


why the the double bond in phenyl in not broken , why the 2 H atoms are not added to the double bond in cyclic sturcture


Homework Equations





The Attempt at a Solution

 

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  • #2
I don't see a phenyl here.
 
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  • #3
Borek said:
I don't see a phenyl here.

sorry , it's nt phneyl but cyclobutene
 
  • #4
Not a cyclobutene either.
 
  • #5
Borek said:
Not a cyclobutene either.

the correct structure is here. why the c= c double bond in the cyclic structure isn't broken?
 

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1. What is hydrogenation of arene?

Hydrogenation of arene is a chemical process in which hydrogen gas (H2) is added to an arene compound, resulting in the formation of a saturated hydrocarbon. This process is commonly used in the production of various products, such as gasoline and plastics.

2. Why is the double bond not broken during hydrogenation of arene?

The double bond in an arene compound is not broken during hydrogenation because the reaction occurs under mild conditions, typically at room temperature and atmospheric pressure. This is not enough energy to break the strong double bond between carbon atoms.

3. What factors influence the rate of hydrogenation of arene?

The rate of hydrogenation of arene is influenced by several factors, including the temperature, pressure, catalyst used, and the concentration of reactants. Higher temperatures and pressures generally result in faster reaction rates, and the use of a catalyst can greatly increase the rate of the reaction.

4. What are the products of hydrogenation of arene?

The products of hydrogenation of arene are saturated hydrocarbons, typically cyclohexanes. These compounds have all single bonds between carbon atoms and are more stable than the unsaturated arene compounds.

5. What are some applications of hydrogenation of arene?

Hydrogenation of arene has a wide range of applications in the production of various products. It is commonly used in the petroleum industry for the production of gasoline, and in the production of plastics, such as polyethylene and polypropylene. It is also used in the production of food products, such as margarine, and in the pharmaceutical industry for the synthesis of drugs.

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