User:V8rik/Archive 04

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Strecker Synthesis[edit]

Hi V8rik, there is an error with the arrow pushing in your mechanism for the Strecker Synthesis, the arrow pushes the wrong way in the second step of part one (going towards a negative charge). As you originally poste dthe picture I thought I would let you know as you might be able to edit it.

Many Thanks —Preceding unsigned comment added by 86.153.69.18 (talk) 21:39, 24 April 2008 (UTC)

Image:Foodflavors.png[edit]

Hi V8rik, please could you delete Image:Foodflavors.png (or give me the permission to do that). The right structure is wrong and I will replace both structures. Thanks, Сасусlе 21:25, 2 January 2008 (UTC)

Hi Сасусlе, no I have made the mess so I should clean it up, will the new image work for you ?(Maillard reaction) V8rik (talk) 21:47, 2 January 2008 (UTC)

We do no longer need this image, see 6-Acetyl-2,3,4,5-tetrahydropyridine, 2-Acetyl-1-pyrroline, and Maillard_reaction. Сасусlе 22:51, 2 January 2008 (UTC)

Repeat references[edit]

Do you know of a better way to add <ref>reference</ref> to the same reference in the same article without the References section below repeating the entire reference in full - as happended here? Thanks. Fireproeng (talk) 20:50, 12 January 2008 (UTC)


  • yes, what you is make a ref like [1] with added to the first ref a name for the ref. and then for the second ref simply repeat the name inside a ref tag [1] (see this in edit mode) V8rik (talk) 21:05, 12 January 2008 (UTC)

References[edit]

  1. ^ a b Green Dreams J.K. Bourne JR, R. Clark National Geographic Magazine October 2007 p. 41 Article

GA or FA articles[edit]

I know from your edits and discussion associated with Biofuel and Ethanol fuel that you have considerable experience in working on B class articles. But could I gently ask please about your experience in bringing articles up to the WP:GA or WP:FA level? I would like to look at your GA/FA articles so I can gain more confidence in you as an editor. Johnfos (talk) 00:30, 13 January 2008 (UTC)


  • so I am just a B-editor then? Check out: Aldol addition and Lead(II) nitrate (active participant). I consider organic chemistry my core business. The biofuel editing I do as a public service. As always in wiki if people take the fun out of it then I will simple cease my collaboration, take it or leave it V8rik (talk) 16:33, 13 January 2008 (UTC)

Cycloheptene[edit]

Sorry, I guess that fact-tagging was a bit hasty on my part. No offense intended. -- Ed (Edgar181) 17:24, 17 January 2008 (UTC)

  • No offense taken! It is just that often these tags consume time but do not resolve an issue V8rik (talk) 17:29, 17 January 2008 (UTC)

Baeyer-Drewson indigo synthesis[edit]

Thanks for the help!! I wanted to do the picture but had no time. I will add something to the indigo page which is short in chemical issues.--Stone (talk) 17:43, 27 January 2008 (UTC)

  • Thanks! V8rik (talk) 15:44, 8 February 2008 (UTC)

organometallic articles[edit]

I am going through what we have in wiki chemicals wise on organometallics for linking to Chemspider. We don't have that many articles! On the other hand your overview articles are excellent and give Wikipedia good coverage of the subject. I also like the periodic table template for linking to other organo-articles. --Axiosaurus (talk) 18:57, 28 January 2008 (UTC)

  • Thanks for your comment, that periodic table is one of my long-term projects, I agree many articles still need to be written. V8rik (talk) 15:46, 8 February 2008 (UTC)


Disputed fair use rationale for Image:Eennl.jpg[edit]

Thanks for uploading Image:Eennl.jpg. However, there is a concern that the rationale you have provided for using this image under "fair use" may be invalid. Please read the instructions at Wikipedia:Non-free content carefully, then go to the image description page and clarify why you think the image qualifies for fair use. Using one of the templates at Wikipedia:Fair use rationale guideline is an easy way to ensure that your image is in compliance with Wikipedia policy, but remember that you must complete the template. Do not simply insert a blank template on an image page.

If it is determined that the image does not qualify under fair use, it will be deleted within a couple of days according to our criteria for speedy deletion. If you have any questions please ask them at the media copyright questions page. Thank you.BetacommandBot (talk) 21:03, 13 February 2008 (UTC)

Ebullioscope[edit]

Nuvola apps important yellow.svg

A proposed deletion template has been added to the article Ebullioscope, suggesting that it be deleted according to the proposed deletion process. All contributions are appreciated, but this article may not satisfy Wikipedia's criteria for inclusion, and the deletion notice should explain why (see also "What Wikipedia is not" and Wikipedia's deletion policy). You may prevent the proposed deletion by removing the {{dated prod}} notice, but please explain why you disagree with the proposed deletion in your edit summary or on its talk page. Also, please consider improving the article to address the issues raised. Even though removing the deletion notice will prevent deletion through the proposed deletion process, the article may still be deleted if it matches any of the speedy deletion criteria or it can be sent to Articles for Deletion, where it may be deleted if consensus to delete is reached. If you agree with the deletion of the article, and you are the only person who has made substantial edits to the page, please add {{db-author}} to the top of Ebullioscope. Gary King (talk) 08:29, 17 February 2008 (UTC)

Eltekoff reaction[edit]

Never heard of it, but some russians have it on their name reaction list! [www.chem.isu.ru/leos/base/name/name08.html] --Stone (talk) 20:56, 19 February 2008 (UTC)

Thanks for the link, google shows mainly wiki mirrors of the chemical reaction list (so basically nothing). The reaction depicted by the Russians I am unable to fit in with other wiki articles (what mechanism?). If you feel it should be in the list I will put it back but as far as I am concerned it will stay redlinked forever. V8rik (talk) 21:06, 19 February 2008 (UTC)
I was courious what chemical reaction this might be, but I think there are more important ones. So lets leave it out untill somebody is really adding an article on the reaction.--Stone (talk) 08:57, 20 February 2008 (UTC)

Hydrosilylation[edit]

I created a short article on hydrosilylation, switching out one of the redirects within organosilicon chemistry. It's at an early stage but I hope to add more content, mainly for the reactions of alkenes, which is what I know more. If you see issues, please let me know. Best wishes,--Smokefoot (talk) 19:19, 21 February 2008 (UTC)

Hi Smokefoot, the new article looks great, I will link to it from organosilicon V8rik (talk) 19:40, 21 February 2008 (UTC)

Speedy deletion of Image:-10-annulene.gif[edit]

Nuvola apps important.svg

A tag has been placed on Image:-10-annulene.gif requesting that it be speedily deleted from Wikipedia. This has been done under section I1 of the criteria for speedy deletion, because the image is redundant copy (all pixels the same or scaled down) of an image in the same file format, which is on Wikipedia (not on Commons), and all inward links have been updated.

If you think that this notice was placed here in error, you may contest the deletion by adding {{hangon}} to the top of the page (just below the existing speedy deletion or "db" tag), coupled with adding a note on [[ Talk:Image:-10-annulene.gif|the talk page]] explaining your position, but be aware that once tagged for speedy deletion, if the article meets the criterion it may be deleted without delay. Please do not remove the speedy deletion tag yourself, but don't hesitate to add information to the article that would would render it more in conformance with Wikipedia's policies and guidelines. Hennessey, Patrick (talk) 22:21, 22 February 2008 (UTC)

Speedy deletion of Image:12annulene.png[edit]

Nuvola apps important.svg

A tag has been placed on Image:12annulene.png requesting that it be speedily deleted from Wikipedia. This has been done under section I1 of the criteria for speedy deletion, because the image is redundant copy (all pixels the same or scaled down) of an image in the same file format, which is on Wikipedia (not on Commons), and all inward links have been updated.

If you think that this notice was placed here in error, you may contest the deletion by adding {{hangon}} to the top of the page (just below the existing speedy deletion or "db" tag), coupled with adding a note on [[ Talk:Image:12annulene.png|the talk page]] explaining your position, but be aware that once tagged for speedy deletion, if the article meets the criterion it may be deleted without delay. Please do not remove the speedy deletion tag yourself, but don't hesitate to add information to the article that would would render it more in conformance with Wikipedia's policies and guidelines. Hennessey, Patrick (talk) 22:38, 22 February 2008 (UTC)

Elastomers Category[edit]

Any particular reason you replaced the category "Polymers" with "Polymer Physics" in the elastomers article? Why not both? Plus - there is a lot of curing references in the article which a polymer physicist would not be interested in. Delmlsfan (talk) 21:40, 1 March 2008 (UTC)

Hi Delmlsfan, I am reasoning that the polymers category is reserved for actual polymers and the polymer physics category reserved for general concepts. Elastomers are a type of polymer that share a physical property. I can live with placement in both categories or even placement in categories polymers and polymer chemistry V8rik (talk) 21:57, 1 March 2008 (UTC)

Image:EAS_MetaSubstitutionsvg2.svg listed for deletion[edit]

An image or media file that you uploaded or altered, Image:EAS_MetaSubstitutionsvg2.svg, has been listed at Wikipedia:Images and media for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Nv8200p talk 17:16, 10 March 2008 (UTC)

Image:EAS_substitutionPatternssvg2.svg listed for deletion[edit]

An image or media file that you uploaded or altered, Image:EAS_substitutionPatternssvg2.svg, has been listed at Wikipedia:Images and media for deletion. Please see the discussion to see why this is (you may have to search for the title of the image to find its entry), if you are interested in it not being deleted. Thank you. Nv8200p talk 17:17, 10 March 2008 (UTC)

Paal-Knorr synthesis[edit]

Hi V8rik, I wanted to ask you, if you can draw a reaction sceme for the Paal-Knorr synthesis? Thanks Stone--Stone (talk) 17:45, 17 March 2008 (UTC)

  • Consider it done! V8rik (talk) 18:24, 17 March 2008 (UTC)
Thanks! --Stone (talk) 15:50, 18 March 2008 (UTC)

Benzyne conversion[edit]

V8rik

I made an adaptation of your Benzyne conversion image - see:


Benzyneconversioncolouredlabels.png


  • blue = unscrambled position
  • red = scrambled position
  • purple = considering both positions together/cross-over product.


If you think this adaptation is not distinct enough/too close to your original image then let me know and I'll delete it.

If you are OK with it, I will add it to the Isotopic_labeling page. The idea was to show how the carbon labels get where they do. I need to edit the summary of the image to explain colours, but will wait for your OK first.

Quantockgoblin (talk) 00:56, 19 March 2008 (UTC)

Biocatalysis.[edit]

Barnstar-atom3.png The E=mc² Barnstar
Hi V8rik. Today we had a lecture by Nicholas Turner, talking about deracemisation by enzymes etc. At a certain point he showed the wikipedia page Biocatalysis, which refers to him. He had no clue who made that edit etc. That information was added by you. There was a bit of a laugh, on the copy he showed there was a typo (there is written emzyme i.s.o. enzyme). (It has been repaired, 9 minutes after the talk finished by someone in Cardiff University). This barnstar is to give you the recognition that you deserve for this edit! Dirk Beetstra T C 14:21, 19 March 2008 (UTC)
  • Thanks!. I feel proud. V8rik (talk) 18:22, 19 March 2008 (UTC)

Image:The Achmatowicz reaction.svg[edit]

Hello, I have noticed in this reaction scheme, in the formula of trimethyl orthoformate you had lost "3" in the subscript index. I think it should be easy for you to correct it using the source chemical file. BTW, the SVG file is in Commons now, too, Regards, Michał Sobkowski (talk) 20:24, 6 April 2008 (UTC)

  • Thanks Michał, for pointing out the missing subscript, I will take of the image right away. V8rik (talk) 17:15, 7 April 2008 (UTC)
  • Done V8rik (talk) 20:11, 7 April 2008 (UTC)

Persistent carbene article[edit]

Hi V8rik, Quantockgoblin has suggested I get onto you, as you seemed to have had major input. I'm going to edit the article to have a standard US/UK English variant, as well as give it a good going over with a fresh pair of eyes. Etiquette dictates that it remain in the first variant, and it looks like you were early on it- what's your preference/suggestion? Freestyle-69 (talk) 06:06, 10 April 2008 (UTC)


  • I did some edits in this article but some unknown user (IP address only) actually wrote the bulk of the article that started out as part of the carbene article (later on a separate article was created). See for example this old edit http://en.wikipedia.org/w/index.php?title=Carbene&oldid=69046626. So by all means edit the article as you like! I can volunteer to redo the periodic table bit if that helps. I am not sure what you mean with the US/UK variant but if you mean with that the flavour of spelling I have no preference. English is my second language and I never understand what the fuss is about. There is a set of rules somewhere to deal with these issues. V8rik (talk) 16:47, 10 April 2008 (UTC)

Wolfenstein-Boters reaction[edit]

You created the article so I wanted to ask if we can move it to Wolffenstein-Böters reaction with a redirect from Wolffenstein-Boters reaction? The second F in Wolfenstein we need anyway! Thanks --Stone (talk) 07:51, 11 April 2008 (UTC)

  • Sure, no problem in fact I took care of it already. V8rik (talk) 18:50, 11 April 2008 (UTC)

Direct process[edit]

Hi, we are at it again, an article is being readied on the direct process (Si + MeCl). I was thinking of recommending that this thing go into organosilicon chemistry, what do you think vs stand alone? Another article will be a short overview of trans-spanning ligands (we did SPANPHOS recently) in chelation.--Smokefoot (talk) 04:22, 18 April 2008 (UTC)

Hi Smokefoot, If you feel the new material belongs in organosilicon chemistry then organosilicon chemistry it is! I am looking forward to this addition. V8rik (talk) 21:35, 18 April 2008 (UTC)

Ok V8rik, we'll see how this article on the Direct process goes, the redlink will go blue some time this week, I hope. BTW, nice work on organoCr (and other sites); if you get a chance you might tweak the Ph on the carbyne.--Smokefoot (talk) 16:35, 20 April 2008 (UTC)
  • happy editing and I will take care of the carbyne image this evening (I knew I was getting in trouble with that one.......) V8rik (talk) 16:40, 20 April 2008 (UTC)

Rollback[edit]

I have added the rollback feature to your user account, and to those other trusted Wikipedia chemists. I hope this helps with reverting any vandalism or other inappropriate edits you come across. (If you do not want rollback, just let me know, and I'll remove it.) -- Ed (Edgar181) 18:24, 21 April 2008 (UTC)


  • Thanks, Edgar for the confidence, I will familiarize myself with the rule book and use the tool wisely. V8rik (talk) 21:41, 21 April 2008 (UTC)

Simmons smith quaternary carbon rearrangement.svg[edit]

Hi V8rik, first thanks for wikifying Fleming-Tamao: I'll eventually catch on! Second, by my reckoning this image is missing a methylene adjacent to sulfur in the final compound. —Preceding unsigned comment added by Seansheep (talkcontribs) 12:02, 23 April 2008 (UTC)

  • Thanks well spotted. I have corrected the image. V8rik (talk) 19:41, 23 April 2008 (UTC)

DYK[edit]

Updated DYK query On 24 April, 2008, Did you know? was updated with a fact from the article Organochromium chemistry, which you created or substantially expanded. If you know of another interesting fact from a recently created article, then please suggest it on the Did you know? talk page.

--Bobet 13:41, 24 April 2008 (UTC)

  • Thanks for the update. V8rik (talk) 18:33, 24 April 2008 (UTC)

Polyphenylchromium compounds[edit]

What is missing from Organochromium chemistry and also Franz Hein is the actual nature of the compounds made by Hein. As I recall they were shown to be sandwich compounds with polycyclic aromatics. For example, triphenylchromium was a sandwich with naphthalene and benzene. Petergans (talk) 20:59, 24 April 2008 (UTC)

Beilstein database[edit]

Hey, i've created an article on the Gmelin database as well to complement it; if you know any info you can stick in the article could you put it in? its not really my area of expertise, i'm a psychologist not a chemist. thanks! Ironholds (talk) 15:44, 1 May 2008 (UTC)