Hydrogentaion of Arene: Why Double Bond Not Broken?

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The discussion centers on the hydrogenation of a cyclic structure, specifically questioning why the double bond in the compound is not broken during the process. Participants clarify that the structure in question is not phenyl or cyclobutene, but rather a different cyclic compound. The main inquiry revolves around understanding the stability of the double bond and the addition of hydrogen atoms. The conversation emphasizes the need for accurate structural identification to address the hydrogenation behavior. Ultimately, the focus remains on the chemical properties that prevent the breaking of the double bond in the specified cyclic structure.
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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


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The Attempt at a Solution

 

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I don't see a phenyl here.
 
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Borek said:
I don't see a phenyl here.

sorry , it's nt phneyl but cyclobutene
 
Not a cyclobutene either.
 
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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