How to remove diethyl malonate from a mixture of two esters?
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The mixture of diethyl malonate and ethyl isobutyrylacetate has similar boiling points and is difficult to distill. Does anyone have any other methods to remove diethyl malonate and purify ethyl isobutyrylacetate?
What is the composition? What's the difference in boiling point? Consider vacuum distillation.
About 5 degrees, basically the same under vacuum
The difference is very small, about 5 degrees under normal pressure, and even smaller under vacuum.
Did you check wrongly? One I found is 199 and the other is 173. They should be separated by vacuum distillation.