I have a light yellow color in the preparation of DOP (by refluxing 14 hrs). I have tried charcoal but color could not be reduced. Is there any other method for the removal of color from the organic reactions.
John Anyam
The light yellow color could be due to charring. Try adding the charcoal and filtering through a plug of celite(diatomaceous earth). Alternatively could could try shorter refluxing time. Hope this was helpful?
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John Anyam
dear Vimal,
I just found out pure dop is actually yellow in color. Look it up in "Natural Product Isolation by Sarker and Gray. Cheers!
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Vimal Kumar
Thank you for the answer, But I have already tried charcoal and shorter refluxing time is not possible in order to complete the reaction. I have also tried nitrogen inert atmosphere.
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