1.16 Ch.1 Organic Textbook Question

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Joseph Park 2M
Posts: 11
Joined: Fri Jun 17, 2016 11:28 am

1.16 Ch.1 Organic Textbook Question

Postby Joseph Park 2M » Sat Mar 11, 2017 6:52 pm

Hello, I was wondering for 1.16 in the textbook solutions the answer is written as
2-Isopropyl-1,1-dimethylcyclopentane

I got 1,1-dimethyl-2-Isopropylcyclopentane

I thought that we ignore prefixes when it comes to naming things in order, is there an exception for iso-/neo-?

Thanks

Laura_funes_1j
Posts: 8
Joined: Mon Jan 26, 2015 2:17 pm

Re: 1.16 Ch.1 Organic Textbook Question

Postby Laura_funes_1j » Sat Mar 11, 2017 7:28 pm

The prefixes you ignore when alphabetizing are di-, tri-, tetra-...
Iso and neo are part of the group name so they are alphabetized.

Grace_Bower_2B
Posts: 13
Joined: Wed Sep 21, 2016 2:58 pm

Re: 1.16 Ch.1 Organic Textbook Question

Postby Grace_Bower_2B » Wed Mar 15, 2017 2:12 pm

The trick is if the prefix is number based you ignore it. Otherwise, it counts for alphabetical.


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