What results from the reaction of 4-phenylbutanoyl chloride in presence of AlCl3?

Please note that this is 4-phenylbutanoyl chloride:


[![4-phenylbutanoyl chloride](https://i.stack.imgur.com/AsMWZm.png)](https://i.stack.imgur.com/AsMWZm.png)


My guess was that another molecule of 4-phenylbutanoyl chloride would react with the phenyl, thus forming a structure like the one below:


[![My guess](https://i.stack.imgur.com/4cdeMm.png)](https://i.stack.imgur.com/4cdeMm.png)


But this molecule seems somewhat awkward, and I am unable to name it. Is my guess correct? If yes, what would be its name?





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> My guess was that an other molecule of 4-phenylbutanoyl chloride would react with the phenyl [...]
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Your guess is not that bad and it seems that you have identified the type of reaction.



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>  Apparently, it is a special type of electrophilic aromatic substutution, known as the *Friedel-Crafts* acylation. In your guess, one molecule of the starting material would serve as the acylating agent (through the acyl chloride), while another is acylated at the phenyl.
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What if you only had one molecule of the staring material? Can you imagine a similar reaction?



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>  The alkyl chain of $\ce{CH2}$ that links the acyl chloride unit to the phenyl is flexible! There's no reason why the *Friedel-Crafts* acylation could not happen as an **intramolecular** reaction, where acylating agent and the attacked phenyl group are part of the **same** molecule.
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What would the the outcome?



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>  The intramolecular reaction would furnish tetralone.
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>  [![enter image description here](https://i.stack.imgur.com/EXUXw.png)](https://i.stack.imgur.com/EXUXw.png)
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