Talk:Amine

From Wikipedia, the free encyclopedia

WikiProject Chemistry This article is within the scope of WikiProject Chemistry, which collaborates on Chemistry and related subjects on Wikipedia. To participate, help improve this article or visit the project page for details on the project.
Start This article has been rated as start-Class on the quality scale.
High This article has been rated as high-importance on the importance scale.

Article Grading: The following comments were left by the quality and importance raters: (edit ยท refresh)


Amine group redirects here. It is a term used in high school. As such, I gave it a "high" rating. The article could use some more biological context, e.g. amine groups in amino acids. - tameeria 03:56, 19 February 2007 (UTC)

Contents

[edit] Table of Kb values

Somebody, please set the table of Kb values right. I added some content, and then, extra values to support it (and messed up the format).

Skeptical Chymist 15:33, 1 May 2008 (IST)

[edit] Quaternary Amines

Should really add quaternary amines here.

Josh Cherry 22:40, 13 Oct 2003 (UTC)
a "quaternary amine" being ...?--Smokefoot 22:49, 19 February 2006 (UTC)

[edit] Sentence problem

This sentence is giving me trouble, mostly b/c I'm not an organic chemist, but if it's confusing to me it's likely to be confusing to others. Anyway I hope someone could clarify and then update it in the article:

"However, if any of the carbons bonded to the nitrogen that is part of a carbonyl group, then the compound is considered an amide rather than an amine."

Does this mean -- if any of the carbons in the 'R' group are, in turn, part of a carbonyl group, then the whole deal is an 'amide' instead of an 'amine'

basically 'that is' is ambiguously referring to one of 'the nitrogen' or 'the carbons'

Thx.

Harold MacKiernan 5 Jan 2006 23:11 PST

I'm pretty sure that any carbonyl group adjacent to an N, NH or NH2 makes it an amide. Perhaps:

"However, if any of the carbons bonded to the nitrogen are also part of a carbonyl group, then the compound is considered an amide rather than an amine." Anand 21:57, 19 February 2006 (UTC)

[edit] Drawing

Nice drawing for the nitrile and amide reductions by LAH, but you might revise the nitriles so that R-C-N are linear in the starting material.--Smokefoot 04:52, 20 February 2006 (UTC)

also the amide forming reaction from acid chloride and an alkyl amine is incorrect as one CH2 was lost.--Smokefoot 00:58, 22 February 2006 (UTC)

[edit] Properties as bases

the article says that:
The nitrogen atom features a lone electron pair that can bind H+ to form an ammonium ion R3NH+. The wiki page about ammonium ion says that its formula is NH4+.
Could somebody correct this ?
What is the name of R3NH+ ? --Colonna 13:36, 25 April 2007 (UTC)

"Ammonium" can refer either to NH4+ itself or more generally to compounds with four groups attached to a positively charged nitrogen - R4N+. NH4+ is just the case where the four R groups are hydrogens and R3NH+ is the case where only one is. --Ed (Edgar181) 14:03, 25 April 2007 (UTC)

[edit] What's the correct pronunciation for "amine"?

206.240.25.247 (talk) 03:04, 17 February 2008 (UTC)

There are two different pronunciations in common use; see [1], which even has audio versions. --Itub (talk) 11:49, 18 February 2008 (UTC)