[carotis]

I am sure there is a easy preparational method to receiving 1,3-cyclopentadione but all infos in interent wants me to pay 40 like bucks for leaking this info. Would please someone say how to get this?
Is it possible to archieve a intramolecular condensation with 5-hydroxy-3-keto-pentanal? I guess not, but I don't know a way, neitehr claisen/dieckmann, aldole reaction... I think I have to use some reagents for that..

[Guitarmaniac86]

Draw a synthetic plan of how you think you could get there. If its wrong I or someone else can correct you. However, you can buy this from Sigma for £40...

[carotis]

If I would know how to do this, I wouldn't ask here... perhaps if I would go from succinic aldejyde and induce a substitution where a carbon comes in, that would work somehow, I know it, I just don't know how exactly.

[Guitarmaniac86]

If I would know how to do this, I wouldn't ask here... perhaps if I would go from succinic aldejyde and induce a substitution where a carbon comes in, that would work somehow, I know it, I just don't know how exactly.

If you show an attempt at an answer people will help you out, even if you a wrong, you will learn from others.

You are thinking along the right lines with succinic aldehyde but I would not do it this way. I would go via a different compound with an acidic alpha hydrogen.

[carotis]

specify then please 

[billnotgatez]

@carotis
It appears that although you have been on the forum for a while you have yet to read the forum rules.
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