Benzaldehyde and MEK - TwoDogs Method

[lalalander]

I was performing the aldol condensation between benzaldehyde and MEK by heating with aqueous HCl, then washing to neutral and vacuum distilling.

However, I cannot isolate the aldol product by vacuum distillation because my vacuum pump is broken.

It is easy to make sure that things are going well when I get a black oily liquid when heating, but because my reflux condenser is not efficient enough, HCl gas escapes.

So I stir it with aqueous HCl first at 0 degrees for 6 hours and then at room temperature for 24 hours and wait for the mixture to darken in color. But it doesn't happen. It's only a deep red color.

I cannot crystallize the resulting organic layer in any way.

Can anyone help?

Thanks.

 

[The-Hive]

An old fridge compressor are good for vacuum. You can source them from any junkyard.

 

[lamer]

2 köpek methodu he

 

[Osmosis Vanderwaal]

I think for under $15 i could build a venturi type asperator

 

[Field7]

Steam distillation

 

[lalalander]

Can unsaturated ketone be steam distilled? I didn't know. Thanks.

 

[lamer]

rojin napıo