The difference between phenyl and benzene

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abdullah1443
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What is the difference between phenyl and benzene. Take Noradrenaline and DL-phenyalanine, why is DL... a phenyl while in noradrenaline its benzene.
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Anonymous1502
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(Original post by abdullah1443)
What is the difference between phenyl and benzene. Take Noradrenaline and DL-phenyalanine, why is DL... a phenyl while in noradrenaline its benzene.
Phenol is c6h5oh and benzene is c6h6
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abdullah1443
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(Original post by Anonymous1502)
Phenol is c6h5oh and benzene is c6h6
Thanks for your response. However, DL-phenyalanine is called phenyl and and has no OH, also phenol is different than phenyl.
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Pigster
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1-(3,4-dihydroxyphenyl)-2-aminoethanol
vs
2-Amino-3-phenylpropanoic acid
?
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abdullah1443
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(Original post by Pigster)
1-(3,4-dihydroxyphenyl)-2-aminoethanol
vs
2-Amino-3-phenylpropanoic acid
?
Hmm, for noradrenaline, Google and several other programs say 4-[2-amino-1hydroxyethyl]benzene-1-2-diol. Is this incorrect? For DL threonine is 2-Amino-3-phenylpropanoic acid which I agree with.
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Pigster
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(Original post by abdullah1443)
Hmm, for noradrenaline, Google and several other programs say 4-[2-amino-1hydroxyethyl]benzene-1-2-diol. Is this incorrect? For DL threonine is 2-Amino-3-phenylpropanoic acid which I agree with.
Are you arguing with Wikipedia?
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anosmianAcrimony
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I think phenyl- is just a prefix which means, ''I'm taking this compound you already know about and adding a benzene group to it.'' So chemically I don't think there is a difference.
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anosmianAcrimony
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Yeah, my post above is basically right.

https://en.wikipedia.org/wiki/Phenyl_group

Technically benzene means C6H6 and phenyl means C6H5--, with the -- meaning a bond to the rest of a larger molecule. (The bond doesn't actually come from the hydrogen, of course.)
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abdullah1443
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(Original post by Pigster)
Are you arguing with Wikipedia?
https://pubchem.ncbi.nlm.nih.gov/com...ne#section=Top

and google....

https://www.google.com/search?client...j0.iBpE8tjgO7s

Thank you!! 😊😊
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DSC_C-137
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(Original post by abdullah1443)
What is the difference between phenyl and benzene. Take Noradrenaline and DL-phenyalanine, why is DL... a phenyl while in noradrenaline its benzene.
phenyl is basically just the prefix for a benzene ring being present in the molecule, when it comes to naming the compound,
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abdullah1443
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(Original post by anosmianAcrimony)
Yeah, my post above is basically right.

https://en.wikipedia.org/wiki/Phenyl_group

Technically benzene means C6H6 and phenyl means C6H5--, with the -- meaning a bond to the rest of a larger molecule. (The bond doesn't actually come from the hydrogen, of course.)
This looks most accurate so far, since it works for my example too, the DL phenyl is c6h5 and functional group attatched. I think if there is no functional group attatched it is benzene and if there is 1 functional group it is phenyl and then more than 1 like 2 or 3 functional groups attatched it becomes c6hn where n is less than 5 and is called benzene again.

Thak you!! 😁
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T.a1_
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(Original post by abdullah1443)
What is the difference between phenyl and benzene. Take Noradrenaline and DL-phenyalanine, why is DL... a phenyl while in noradrenaline its benzene.
My teacher told us that the difference between phenyl and benzene is that benzene is the only thing that reacts, whereas a phenyl is if there is another functional group that is more reactive than the benzene part i.e. phenylamine - the amine part is the functional group that is more reactive and any chemical reactions would happen because of the amine group rather than the benzene.
Idk if that makes sense or not lol.
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