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View Full Version : naming the following benzene structure


chirumu
Sep18-11, 04:42 AM
1. The problem statement, all variables and given/known data

http://i159.photobucket.com/albums/t137/piko-puko/chem.png

2. Relevant equations

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3. The attempt at a solution

i understand that benzoate is derived from carboxylic acid (COOH) to which isopropyl has replaced the H, forming a benzoate substituent to which we derive the parent name of the structure. I understand that Chloro is the name for the Cl substituent and that it is joined to C2. What i dont understand is why the structure is called:

isopropyl-2-chlorobenzoate

as opposed to

2-chloroisopropylbenzoate

does it possibly have something to do with the fact that 2-chloroisopropylbenzoate does not specify whether the Cl substituent is joined to C2 on isopropyl or benzene? Or does the isopropyl group take priority over the Cl group?

isopropyl-2-chlorobenzoate isnt alphabetised and thats what confuses me the most here.

Not quite sure and in need of a little help. Thankyou.

Borek
Sep18-11, 05:01 AM
does it possibly have something to do with the fact that 2-chloroisopropylbenzoate does not specify whether the Cl substituent is joined to C2 on isopropyl or benzene?

That would be my understanding - chloroisopropyl suggests to me chlorine attached to isopropyl, not to the benzene ring.