uncas
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drying aether for grignard reactions
Forgive me if this question has already been belaboured in previous threads , but i am still adjusting to the search engine here at
Sciencemadness. Can diethyl-ether for grignard and organometallic syntheses be adequately dried via 4 A molecular sieves, or do they require
further processing with sodium wire or some other chemical reaction. I have consulted Vogel (3rd ed.) on the drying of ethers, but apparrently
molecular sieves were either unknown or not in vogue at the time of publication. Any suggestion would be appreciated.
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smaerd
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http://delloyd.50megs.com/moreinfo/drying.html
This website says that molecular sieve can be used for ether.
It was also brought up in this thread: http://www.sciencemadness.org/talk/viewthread.php?tid=13114
sometimes its easier to search google then to use the search engine here. "Sciencemadness dry solvents"
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uncas
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Thank you. Very useful tip on the Google search.
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entropy51
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Quote: Originally posted by uncas  | | Forgive me if this question has already been belaboured in previous threads , but i am still adjusting to the search engine here at
Sciencemadness. Can diethyl-ether for grignard and organometallic syntheses be adequately dried via 4 A molecular sieves, or do they require
further processing with sodium wire or some other chemical reaction. I have consulted Vogel (3rd ed.) on the drying of ethers, but apparrently
molecular sieves were either unknown or not in vogue at the time of publication. Any suggestion would be appreciated. |
You are forgiven, but when I put the two words "drying" and "grignard" into the FSE it came right up: https://www.sciencemadness.org/whisper/viewthread.php?tid=13...
Molecular sieves work just fine in my experience.
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