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Author Topic: ETOH  (Read 1204 times)

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asIlaydiene

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ETOH
« on: January 23, 2012, 09:54:14 PM »

" Hey  guys, your insight on this problem would help greatly! ETOH and any other needed reagents and solvents, outline a practical synthesis of sodium amide (NaNH2). More than one step may be required. So now if I have this right, this would require an OH to alkyl halide conversion, then using sodium metal in a solution of ether, and finally reacting the resulting  CH3CH2Na with NH3 in an acid-base reaction with hexane as the solvent: (ETOH +PBr3, then Na +ETBr +ETNa+ NH3 +hexane) Is this a reasonable/ accurate solution?”
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Dan

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Re: ETOH
« Reply #1 on: January 23, 2012, 10:22:42 PM »

Do you have to use ethanol? It is unnecessary.

I would do this and then celebrate with a beer. Not sure that counts though...
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vmelkon

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Re: ETOH
« Reply #2 on: January 25, 2012, 03:26:55 AM »

" Hey  guys, your insight on this problem would help greatly! ETOH and any other needed reagents and solvents, outline a practical synthesis of sodium amide (NaNH2). More than one step may be required. So now if I have this right, this would require an OH to alkyl halide conversion, then using sodium metal in a solution of ether, and finally reacting the resulting  CH3CH2Na with NH3 in an acid-base reaction with hexane as the solvent: (ETOH +PBr3, then Na +ETBr +ETNa+ NH3 +hexane) Is this a reasonable/ accurate solution?”

If you want to make CH3CH2Na, you could just directly react EtOH and Na metal.
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Dan

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Re: ETOH
« Reply #3 on: January 25, 2012, 03:49:29 AM »

If you want to make CH3CH2Na, you could just directly react EtOH and Na metal.

No you can't. EtOH + Na --> NaOEt + H2, which is CH3CH2ONa, not CH3CH2Na or EtNa
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Honclbrif

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Re: ETOH
« Reply #4 on: January 25, 2012, 06:09:22 AM »

I recall that you can dissolve sodium in liquid ammonia, then a pinch of Fe(III) catalyzes the conversion to sodium amide.
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