Talk:Ester: Difference between revisions

From Citizendium
Jump to navigation Jump to search
imported>Peter Lyall Easthope
m (Reply to question of parent topic.)
imported>Peter Lyall Easthope
 
(9 intermediate revisions by 3 users not shown)
Line 11: Line 11:


:Not all esters are organic--Wikipedia gives the example of a phosphoric acid ester.  Not every ester can be derived from a fatty acid.  [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 23:24, 24 November 2008 (UTC)
:Not all esters are organic--Wikipedia gives the example of a phosphoric acid ester.  Not every ester can be derived from a fatty acid.  [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 23:24, 24 November 2008 (UTC)
== What is a half-ester? ==
[[User:David E. Volk|David E. Volk]] 14:40, 25 November 2008 (UTC)
:David, that is precisely the question which turned up here and prompted me to insert the term in the Related Articles.  As far as I can tell it is an ester according to my definition where R<sub>2</sub> is as small as possible without being H; ie. R<sub>2</sub>=C00H.  Reference [[http://www.depts.ttu.edu/chemistry/Faculty/niwayama/index.php]].  Investigating further, [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 19:50, 27 November 2008 (UTC)
::It would seem to be a shorthand colloquism for a half esterified dicarboxylic acid from the reference listed above.  I am not sure that it is a "real" chemical term widely used. [[User:David E. Volk|David E. Volk]] 00:42, 28 November 2008 (UTC)
:Good insight!  We got the colloquialism, but not the "half esterified dicarboxylic acid".  So should CZ include it or not?  Thanks, [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 18:43, 28 November 2008 (UTC)
:And the IUPAC name for a "half-ester" would be carboxyl-ester? [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 20:37, 28 November 2008 (UTC)
== Added a sentence to intro==
I added to the intro to help non-chemists like me. Please correct if I did this in error. - [[User:Robert Badgett|Robert Badgett]] 15:56, 3 January 2009 (UTC)
:Robert, thanks; seems good to me.  David Volk is a better authority.  ...[[User:Peter Lyall Easthope|Peter Lyall Easthope]] 15:34, 6 January 2009 (UTC)
== Definition in introduction ==
"... an ester is a chemical compound that contains a carbonyl functionality (C=O) attached to an alkoxide."  And what is an alkoxide?  The word should link to an explanation.  Regards, ... [[User:Peter Lyall Easthope|Peter Lyall Easthope]] 15:12, 9 August 2012 (UTC)

Latest revision as of 09:12, 9 August 2012

This article is a stub and thus not approved.
Main Article
Discussion
Related Articles  [?]
Bibliography  [?]
External Links  [?]
Citable Version  [?]
 
To learn how to update the categories for this article, see here. To update categories, edit the metadata template.
 Definition The molecule R1AOOR2 where A is an atom and R1 and R2 are molecular groups. [d] [e]
Checklist and Archives
 Workgroup categories Chemistry and Food Science [Categories OK]
 Subgroup category:  Biochemistry
 Talk Archive none  English language variant American English

Parent Article

In the Citizendium:Ester/Related_Articles I've listed Chemistry as the parent topic. Can anyone suggest a more specific parent? Thanks, ... Peter Lyall Easthope 17:44, 24 November 2008 (UTC)

Parent topics

How about Organic chemistry Fatty acid chemistry

Not all esters are organic--Wikipedia gives the example of a phosphoric acid ester. Not every ester can be derived from a fatty acid. Peter Lyall Easthope 23:24, 24 November 2008 (UTC)

What is a half-ester?

David E. Volk 14:40, 25 November 2008 (UTC)

David, that is precisely the question which turned up here and prompted me to insert the term in the Related Articles. As far as I can tell it is an ester according to my definition where R2 is as small as possible without being H; ie. R2=C00H. Reference [[1]]. Investigating further, Peter Lyall Easthope 19:50, 27 November 2008 (UTC)
It would seem to be a shorthand colloquism for a half esterified dicarboxylic acid from the reference listed above. I am not sure that it is a "real" chemical term widely used. David E. Volk 00:42, 28 November 2008 (UTC)
Good insight! We got the colloquialism, but not the "half esterified dicarboxylic acid". So should CZ include it or not? Thanks, Peter Lyall Easthope 18:43, 28 November 2008 (UTC)
And the IUPAC name for a "half-ester" would be carboxyl-ester? Peter Lyall Easthope 20:37, 28 November 2008 (UTC)

Added a sentence to intro

I added to the intro to help non-chemists like me. Please correct if I did this in error. - Robert Badgett 15:56, 3 January 2009 (UTC)

Robert, thanks; seems good to me. David Volk is a better authority. ...Peter Lyall Easthope 15:34, 6 January 2009 (UTC)

Definition in introduction

"... an ester is a chemical compound that contains a carbonyl functionality (C=O) attached to an alkoxide." And what is an alkoxide? The word should link to an explanation. Regards, ... Peter Lyall Easthope 15:12, 9 August 2012 (UTC)