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When do you use hot ethanolic conditions, warm aqueous conditions etc.

Are there any rules regarding what conditions to use for different reactions? I understand why you'd use different reducing agents (e.g. LiAlH4 over H2/Ni), but I don't know why you would use hot ethanolic conditions or warm aqueous conditions

Anybody know?
Original post by Boople
Are there any rules regarding what conditions to use for different reactions? I understand why you'd use different reducing agents (e.g. LiAlH4 over H2/Ni), but I don't know why you would use hot ethanolic conditions or warm aqueous conditions

Anybody know?


Hot concentrated and ethanolic when you want NaOH to act as a very strong base .....
Reply 2
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Boople
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Original post by charco
Hot concentrated and ethanolic when you want NaOH to act as a very strong base .....


and warm aqueous when you want it to act as a nucleophile?
Original post by Boople
and warm aqueous when you want it to act as a nucleophile?

yes
Reply 4
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Boople
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Original post by charco
yes


Thanks, that's helped quite a bit
Reply 5
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Nayzar
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for the same reagents (a nucleophile and a haloaklane):
Nucleophilic Substitution = Warm, aqueous
Elimination = Hot, ethanolic

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