Talk:Dewar benzene

Name

G.J. Städeler, J. Prakt. Chem. 102 (1868) 105.
H. Wichelhaus, Ber. Dtsch. Chem. Ges. 2 (1869) 197.

coined the name dewar benzene.--Stone 17:32, 13 December 2006 (UTC)[reply]

Incorrect starting material in diagram

The synthesis route of van Tamelen is correctly described as starting from photolysis of the cis-1,2-dihydro derivative of phthalic anhydride. However the diagram shows photolysis of phthalic anhydride itself, with an extra two hydrogens mysteriously appearing during the photolysis. I have checked the cited 1963 paper by van Tamelen and Pappas - our article text is correct but the diagram shows the wrong starting material. Can someone redraw the diagram? Dirac66 (talk) 03:17, 9 September 2010 (UTC)[reply]

Yep, the image is incorrect, I can provide a new one in a few days V8rik (talk) 17:18, 9 September 2010 (UTC)[reply]
- Done V8rik (talk) 21:00, 12 September 2010 (UTC)[reply]

Hi V8rik... did you mean lead instead of palladium tetraacetate? --Rifleman 82 (talk) 21:21, 12 September 2010 (UTC)[reply]

- - grrr, new version coming up...V8rik (talk) 21:33, 12 September 2010 (UTC)[reply]

Done V8rik (talk) 21:37, 12 September 2010 (UTC)[reply]

Looks good now. Thanks. Dirac66 (talk) 00:04, 13 September 2010 (UTC)[reply]

Chemical structure of Dewar benzene

Is the C1-C4 bonding a pi bond not a sigma bond? This will be a special type of pi bond which will form without a sigma bond. In this way all carbons will be sp2 hybridised and the molecule will be planar. Apurva thatsit (talk) 09:17, 21 September 2024 (UTC)[reply]

Its just normal sigma bond between two sp3 carbons. A little strained. --Smokefoot (talk) 16:49, 21 September 2024 (UTC)[reply]