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Topic: BF3 OEt2 Purification  (Read 931 times)

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JurusGomes

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BF3 OEt2 Purification
« on: October 26, 2019, 10:18:21 AM »
If any of you have worked with boron trifluoride dietherate, and what type of purification process you used.

Everything online/literature says to distill over CaH2, but I was curious if I could distill off any water present and store over sieves. That’s what I usually do when literature says distill over CaH2 instead.

This will he used for a series of Mukaiyama aldol reactions. If any of you have any tips of that as well I’ll take them. Thanks!!

Offline rolnor

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Re: BF3 OEt2 Purification
« Reply #1 on: October 26, 2019, 12:01:21 PM »
BF3*Et2O will probably react with sieves, the sieves can act both as acid and base. Why not follow the standard procedure and distill?

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