morsagh
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Alkyl nitrites reduction
Hello,
Can be alkyl nitrites reduced to amines (what reagent)? Or what is product of reduction?
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Metacelsus
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Probably not, unless you could isomerize it to the nitro compound. My guess is that reducing conditions would just form the alcohol.
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brubei
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did you mean nitroalkyl to alkylamine ?
alkyl nitrite
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morsagh
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I mean nitrites, can be this isomerised to nitro compound?
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brubei
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alkyl nitrite react by losing NO gas, giving alkoxyradical RO, or used for oxime synthesis.
I don't think there is a way to induce simple isomerisation.
[Edited on 24-3-2016 by brubei]
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PHILOU Zrealone
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Yes but it is risky because the isomerization temperature is very close to the explosion temperature of nitrite esters...
There are not alot of references about the isomerization.
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
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morsagh
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No catalyst can help? What´s mechanism?
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PHILOU Zrealone
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As already written:
"There are not a lot of references about the isomerization. "
--> I have only seen a brief mention in one of my books.
--> This is open for your as a new research  
I invite you to try methyl nitrite at 100°C to 135°C (search the optimum) but don't go too fast because arround 130°C-135°C you get a risk of
explosion/detonation. The methyl nitrite decompose generating heat --> exothermic.
--> Start small.
Don't forget to post you results.
A catalyst may be a good idea, but a catalyst may aswel increase sensitivity of the methyl nitrite ester or of the nitromethane to heat and lower the
activation energy for an explosion/a detonation.
--> You'll have to test catalyst by trial and error BEHIND A SAFETY SHIELD SCREEN.
[Edited on 24-3-2016 by PHILOU Zrealone]
PH Z (PHILOU Zrealone)
"Physic is all what never works; Chemistry is all what stinks and explodes!"-"Life that deadly disease, sexually transmitted."(W.Allen)
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Σldritch
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https://www.erowid.org/archive/rhodium/chemistry/nitrite2nit...
You might be able to make the copper catalyst in-situ by redeucing copper (II) oxide with hydrogen before distilling the nitrite.
Anyway seems very intresting considering how nitrites are so easy to prepare, now i wish i had some sodium nitrite...
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aga
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Make some ! It's Easy (apparently)
Start a new thread and show us a procedure and some photos of how it 'easy' it is.
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Σldritch
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I tought it was easy based on videos like this but maybe im wrong, atleast it would be easier for me considering i do not have acess to sulfuric acid
and can not nitrate with nitrosyl sulfuric acid.
https://www.youtube.com/watch?v=bbmpmLjfkkM
EDIT: Im sorry i think you missunderstood me, i mean alipathic nitrites are easy to prepare not the nitrite ion. 
[Edited on 11-5-2016 by Σldritch]
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CuReUS
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Quote: Originally posted by Σldritch  |
You might be able to make the copper catalyst in-situ by redeucing copper (II) oxide with hydrogen before distilling the nitrite.
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what copper catalyst are you talking about ? . Are you referring to the reduction process ?
wouldn't it be better to make the nitro compound first and do the reduction to amine using sodium dithionite rather trying to do a one pot conversion
from the alkyl nitrite to amine ?
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Σldritch
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| Quote: Originally posted by CuReUS | | Quote: Originally posted by Σldritch |
You might be able to make the copper catalyst in-situ by redeucing copper (II) oxide with hydrogen before distilling the nitrite.
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what copper catalyst are you talking about ? . Are you referring to the reduction process ?
wouldn't it be better to make the nitro compound first and do the reduction to amine using sodium dithionite rather trying to do a one pot conversion
from the alkyl nitrite to amine ? |
Definetly but if you dont have sulfuric acid to make nitrosyl sulfuric acid and nitrate with that i do not know any other processes then using silver
nitrite adn alkyl chloride and the one i posted a reference too.
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