Comments on: Summary Sheet – Alkane Nomenclature

By: Chandru

Chandru — Tue, 30 Jan 2024 20:25:35 +0000

Thanks for the sheet James

By: james

james — Mon, 26 Nov 2012 22:40:27 +0000

In reply to Emily Chamberlain. Yes, 1-methylpropyl is also known as s-butyl !

By: Emily Chamberlain

Emily Chamberlain — Fri, 23 Nov 2012 18:14:16 +0000

Quick question: the example that you give in the top left-hand corner of the Summary Sheet #6 pdf, is it also correct to name the alkyl group on the 5th carbon as “sec-butyl” instead of “1-methylpropyl”? Or am I mixing things up?
Otherwise great sheets you have here! (I’m definitely buying the Org2 study sheets…) :)

By: james

james — Tue, 28 Aug 2012 01:54:58 +0000

In reply to Paul Kim. thank you! Will fix.

By: Paul Kim

Paul Kim — Tue, 28 Aug 2012 01:01:09 +0000

One slight mistake on Summary Sheet #6:
On the “Trivial names for substituents” section, isobutyl is incorrectly drawn.

Source:
http://en.wikipedia.org/wiki/Butyl#Nomenclature

By: rahim

rahim — Tue, 18 Jan 2011 16:58:36 +0000

In reply to Egon Willighagen. 3-ethyl-2-methyl-3-propylhexane

By: James

James — Tue, 02 Nov 2010 00:07:46 +0000

In reply to azmanam. I always thought that too. My version of chemdraw keeps spitting back the cycloalkane as the parent, however, so I was wondering if it knew something I didn't. Haven't found a clear answer for pure alkanes.

By: azmanam

azmanam — Mon, 01 Nov 2010 00:24:25 +0000

For simple cycloalkanes with simple alkyl substituents, the ‘half’ with the most number of carbons is the parent.

When one is more complex than the other, the ‘cooler’ half is the parent.

http://bit.ly/9lM1xg

By: James

James — Sun, 31 Oct 2010 01:56:10 +0000

Bookmarked it., Thanks!

By: Egon Willighagen

Egon Willighagen — Sat, 30 Oct 2010 13:02:06 +0000

If you are learning the IUPAC nomenclature, it is always useful to test your suggested name. For this, one can use the online OPSIN service that translated IUPAC names into chemical structures:

http://opsin.ch.cam.ac.uk/