[cyberfunk2]

Silly question here.. I know the way to get rid of my DCU from a DCC coupling is to filter the CH2Cl2 rxn solvent cold, but how do I clean DCU out of my flask and funnels/ off my glassware.. etc. 

Does it dissolve readily in base bath / acid bath ?  I've seen people claim MeOH/CHCl3 mixtures solubilize it, but this hasnt worked for me. 

Suggestions/experience appreciated!

[russellm72]

How about getting it in a nice sink with soapy water and remove it with a lovely bottle brush.

Or try using a different coupling reagent have you not thought of EDCI?

One could always try DCC immobilised on a resin.

If all fails put some c.H2SO4 in your flask and swirl occasionally. That should shift it and probably a lot of other junk that might be in there.

Kindest

R.

[AWK]

DCU is sparingly soluble in methanol and ethanol