Styrene > Hydratropic Aldehyde

[Elementary]

This looks interesting  

Patent US3379768

Abstract :

Hydratropic aldehyde is prepared by ozonizing the linear dimer of styrene and decomposing with a palladium catalyst in an aqueous medium containing suitable organic solvents. The hydratropic aldehyde is separated from benzaldehyde, which is also produced by the present process, in a pure state suitable for use in perfumes.

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000320196-file_vbny.jpg" title="View this image">

And what can hydratropic aldehyde be easily converted to ? yes P2P  
John Lennon - Working Class Hero

[Elementary]

Most organic ozonides are explosive, as for the ozonide formed here I just can't say either way.

I can only assume that the palladium used decomposes the ozonide in a controlled tame fashion.

Ozone can be easy generated by exposing oxygen to ultra violet light, see here for more info :

http://www.ozonegeneratorairpurifierwastewatertreatmentpurification.com/ozone.htm

If this ozonide stage could be replaced by another method, we would have ourselves a great bulk method for the production of P2P using easily available chemicals.

Can anybody describe how a "Flash Distillation" is performed ?
John Lennon - Working Class Hero

[Elementary]

http://www.cordis.lu/tmr/src/grants/fmbi/960833.htm

http://www.unil.ch/cost/chem/docs/D10/d10-01-98.htm

"A Novel Synthetic Method of Hydratropic Aldehyde", maybe someone has access to this doc or a translation ?

http://periodicals.wanfangdata.com.cn/qikan/periodical/gdxxhxxb/gdxx2001/0108/0108mle.htm

John Lennon - Working Class Hero

[Osmium]

> www.ozonegeneratorairpurifierwastewatertreatmentpurification.com/

Who comes up with such domain names?!?
I'm not fat just horizontally disproportionate.

[Rhodium]

The shorter ones were already taken  

[Elementary]

Ozone is bubbled though a solution of the alkene in carbon tetrachloride.

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000320196-file_hrp6.gif" title="View this image">

Oxidation of alkenes through ozonides.

https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_docs/000320196-file_8hfi.gif" title="View this image">

Ozonolysis of an olefin :

http://www.ch.ic.ac.uk/local/organic/18.html

Comment :

So it seems that palladium can be replaced with sulphuric acid (according to patent), or the reduction/degradation can be performed with Zinc powder.
John Lennon - Working Class Hero