Organic Question

[frogger33]

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I cannot find the info in my notes. When you are naming a cyclic compound by IUPAC, do you know when you use the ortho, meta, para (o,m,p) prefixes or when you just give the carbon number it attaches to??

Ex: m-chloro-o-dimethylcyclohexanone is the correct name for the compound versus 3-chloro-2,2-dimethyl cyclohexanone, which is the same thing but the second is incorrect.

Please help if you understand what I am talking about.... THANKS!

 

[ncalcate]

I cannot find the info in my notes. When you are naming a cyclic compound by IUPAC, do you know when you use the ortho, meta, para (o,m,p) prefixes or when you just give the carbon number it attaches to??

Ex: m-chloro-o-dimethylcyclohexanone is the correct name for the compound versus 3-chloro-2,2-dimethyl cyclohexanone, which is the same thing but the second is incorrect.

Please help if you understand what I am talking about.... THANKS!

You only use the prefixes o,m,p when dealing with aromatics. So for benzene with two substituents, you can use numbers or o,m,p. Both are acceptable IUPAC names. When naming cyclic compounds like cyclohexane and cyclopentane, you use numbers only.

Hope that helps.

 

[DMD_DREAMING]

You only use the prefixes o,m,p when dealing with aromatics. So for benzene with two substituents, you can use numbers or o,m,p. Both are acceptable IUPAC names. When naming cyclic compounds like cyclohexane and cyclopentane, you use numbers only.

Hope that helps.

Precisely!!

 

[frogger33]

Ah, Thank you very much!! 😀