4-methylnitrobenzene or 4-nitromethylbenzene?

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TheGreaterGood
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#1
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#1
4-methylnitrobenzene or

4-nitromethylbenzene?


I think it's the first one and the reason being that

you have to name what's attached in alphabetical order ?
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charco
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#2
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#2
(Original post by TheGreaterGood)
4-methylnitrobenzene or

4-nitromethylbenzene?


I think it's the first one and the reason being that

you have to name what's attached in alphabetical order ?
p-nitrotoluene
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Cat123456
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#3
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#3
Alphabetical order
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Stiff Little Fingers
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#4
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#4
As charco has said it's para-nitrotoluene, but if you're naming by substituents then it's alphabetical order, so it'd be 1-methyl-4-nitrobenzene.
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TheGreaterGood
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#5
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#5
(Original post by charco)
p-nitrotoluene
(Original post by Stiff Little Fingers)
As charco has said it's para-nitrotoluene, but if you're naming by substituents then it's alphabetical order, so it'd be 1-methyl-4-nitrobenzene.
woah para-nitrotoluene :eek: I've never even heard of that name before :rofl:

so if I just called it 1-methyl-4-nitrobenzene I would still get the mark?
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charco
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#6
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#6
(Original post by TheGreaterGood)
woah para-nitrotoluene :eek: I've never even heard of that name before :rofl:

so if I just called it 1-methyl-4-nitrobenzene I would still get the mark?


Drop the '1-' and you would get the mark for either answer.

IUPAC allows for roots such as toluene and xylene when constructing names if it simplifies the situation.

Just look up 'cubane' ...
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Stiff Little Fingers
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#7
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(Original post by TheGreaterGood)
woah para-nitrotoluene :eek: I've never even heard of that name before :rofl:

so if I just called it 1-methyl-4-nitrobenzene I would still get the mark?
Really? Have you heard of toluene, phenol etc.? These are bezene with a CH3 (toluene), OH (phenol) etc. - common names for methylbenzene, hydroxybenzene etc. Para is a simple reference to position on the ring (ipso - one the same carbon, ortho - adjacent, meta - 2 carbons along, para - opposite carbon)

Should do yes.
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TheGreaterGood
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#8
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#8
(Original post by charco)
Drop the '1-' and you would get the mark for either answer.

IUPAC allows for roots such as toluene and xylene when constructing names if it simplifies the situation.

Just look up 'cubane' ...
how come you would be allowed to drop the 1 *scratches head*

(Original post by Stiff Little Fingers)
Really? Have you heard of toluene, phenol etc.? These are bezene with a CH3 (toluene), OH (phenol) etc. - common names for methylbenzene, hydroxybenzene etc. Para is a simple reference to position on the ring (ipso - one the same carbon, ortho - adjacent, meta - 2 carbons along, para - opposite carbon)

Should do yes.
ohhhh yes I am familiar with phenol. I vaguely remember hearing about toluene in class once. Ohh right, I did not know that.
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charco
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#9
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#9
(Original post by TheGreaterGood)
how come you would be allowed to drop the 1 *scratches head*
It is redundant.

Once you declare the '4' it locates the '1'.
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Stiff Little Fingers
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#10
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#10
(Original post by TheGreaterGood)
how come you would be allowed to drop the 1 *scratches head*



ohhhh yes I am familiar with phenol. I vaguely remember hearing about toluene in class once. Ohh right, I did not know that.
You'd be allowed to drop the one because you're referring to just two substituents and one has to be on carbon 1 to start with (in a ring carbon 1 will be the one a functional group is on), declaring the other to be at carbon 4 locates the other substituent. I put it on for the sake of completeness but it's entirely superfluous.
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TheGreaterGood
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#11
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#11
(Original post by charco)
It is redundant.

Once you declare the '4' it locates the '1'.
(Original post by Stiff Little Fingers)
You'd be allowed to drop the one because you're referring to just two substituents and one has to be on carbon 1 to start with (in a ring carbon 1 will be the one a functional group is on), declaring the other to be at carbon 4 locates the other substituent. I put it on for the sake of completeness but it's entirely superfluous.

Oh right that makes sense. Thanks
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