Talk:Α-Pinene

Odor

The ponderosa pine bark has an odor that resembkes vanilla and butter scotch. The park service claims that the odor is caused by alpha pinene. My knowledge as a pharmacist inclines me to think that alpha pine has a pine odor. I will be grateful for any information.

Thank you David Mattichak email davmattATadelphia.net

alpha-Pinene is a major constituent of turpentine, and it smells rather like that (as you might expect). I don't think it has a vanilla/butterscotch smell - but smells can be peculiar, depend on concentrations and other constituents, etc. The main constituent of vanilla is vanillin, an aromatic aldehyde. Can't help more, I'm afraid! Walkerma 05:28, 12 October 2006 (UTC)

3D Image

A 3D image would help this article a lot. --Hamsterlopithecus (talk) 12:10, 7 January 2008 (UTC)

I added a couple of images that were in pinene. I hope this helps. -- Ed (Edgar181) 12:25, 7 January 2008 (UTC)

I think the 3D images for the + and - confirmations are in the wrong order. Could somebody please check? —Preceding unsigned comment added by 124.106.226.115 (talk) 13:48, 20 August 2008 (UTC)

Problem: The 3D images uploaded for the +/- enantiomers of camphor shown seem to be the exact same molecules, and not mirror images of one-another. Pillowmurder (talk) 13:56, 14 June 2010 (UTC)

WikiProject Food and drink Tagging

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SMILES for this entry is wrong

The smiles for this entry has 12 carbons but a-pinene has the formula C10H16. The SMILES should be regenerated. --Steinbeck (talk) 13:00, 11 May 2009 (UTC)

The SMILES string currently in the article - C\1=C(\[C@@H]2C[C@H](C/1)C2(C)C)C - is correct and has 10 carbons. -- Ed (Edgar181) 19:40, 14 July 2011 (UTC)

Iodine Addition?

As far as I can tell, the Iodine addition in the reaction chart is incorrect. I am almost certain that I2 addition to alpha-pinene results in a diiodinated product.

Reference here: http://jchemed.chem.wisc.edu/JCESoft/CCA/CCA5/MAIN/1ORGANIC/ORG06/TRAM06/C/0193424/MOVIE.HTM — Preceding unsigned comment added by 140.247.155.242 (talk) 19:31, 14 July 2011 (UTC)

It's quite possible that the product will vary depending on the reaction conditions. Under some conditions, elimination of hydrogen iodide following the addition of iodine could give the product shown. -- Ed (Edgar181) 19:44, 14 July 2011 (UTC)

ChEBI entry in ChemBox

I corrected the ChEBI entry to point to the class alpha-Pinene. The previous entry pointed to (-)-alpha-pinene, which is only one of the two enantiomers discussed here. Ideally, the ChemBox would allow for listing the class CHEBI:36740 and the two enantiomers CHEBI:28660 and CHEBI:28261, like it is done for the CAS numbers. Can anyone enlighten me if we have a mechanism for this? Csteinbeck (talk) 13:17, 19 May 2016 (UTC)

@Csteinbeck:. Yes, in the infobox template in addition to "| ChEBI =" you can use "| ChEBI1 =" and "| ChEBI2 = " etc. -- Ed (Edgar181) 13:31, 19 May 2016 (UTC)

Excellent, thanks. Csteinbeck (talk) 14:21, 19 May 2016 (UTC)

I've created the category plant communication

see here for details. The associated article plant communication is in need of expansion and attention from an expert. Note - I'm not an expert on botany (or anything really) I'm adding this page to the category because it is either extensively mentioned in the plant communication article, or I thought that this article's regular editors would be able to contribute to the plant communication article. If this page is removed from the category by an expert, please consider adding more relevant pages to the category and leaving a reason on this talk page (in layman's language) which I have added to my watch list. In good faith and with thanks! Edaham (talk) 00:43, 7 November 2017 (UTC)