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Topic: Name of compound  (Read 6998 times)

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Offline vhpk

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Name of compound
« on: February 16, 2010, 02:34:53 AM »
Hi everyone,
I've got a question regarding writing structure the compound. One problem in my textbook is to write the structure of a compound whose name is 2-(prop-2-enyloxy)prop-1-ene.
My solution is

Here is the solution from the textbook

I don't understand why the answer in the textbook is like that. Can anyone here explain to me ?
Thanks in advance :)
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Offline plankk

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Re: Name of compound
« Reply #1 on: February 16, 2010, 06:10:07 AM »
Are you sure that in book was written 2-(prop-2-enyloxy)prop-1-ene instead of 3-(prop-2-enyloxy)prop-1-ene?

Offline vhpk

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Re: Name of compound
« Reply #2 on: February 17, 2010, 01:26:05 AM »
Yes, this is problem 4 in chapter 2 of Clayden Organic Chemistry
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Offline plankk

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Re: Name of compound
« Reply #3 on: February 17, 2010, 07:30:04 AM »
In an attachment you have a picture with proper number which must be assigned to concrete carbon. In blue is the chain and in the black substitutent. I hope it will clear up. If not just ask.

Good luck.

Offline orgopete

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Re: Name of compound
« Reply #4 on: February 17, 2010, 08:53:45 AM »
@vhpk, since you affirmed the locant to plankk's question about the correct name, you have found a typographical error. Further, plankk has given you the outline of the correct nomenclature in that the 3 of 3-(prop-2-enyloxy)prop-1-ene is the locant of the substituent in parentheses. This is the same if we were discussing 3-chloroprop-1-ene. This is only slightly more complicated in that the name is nested in parentheses, e.g., 3-(2-chloroethoxy)prop-1-ene. The 2 of 2-chloroethoxy is the locant on the ethoxy substituent and the 3 refers to the propene.
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Offline vhpk

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Re: Name of compound
« Reply #5 on: February 17, 2010, 10:14:55 AM »
Thank you for the replying :)
Genius is a long patience

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