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how to get n-butylamen please
When using aqueous acetic acid, you will most likely have to use some alcohol all at once to dissolve the water, benzaldehyde, and nitroethane together
like 100 ml benzaldehyde, 100 ml nitroethane, 20 ml acetic acid 80%, 5ml isopropanol and 10ml (or 20ml?) cyclohexilamine in 1 L flask and reflux ?
i have tried ! and it's my actual yield record haha thanks !!
55gr benzaldehyde
40gr nitroethane
10ml acid acetic 80°
3ml isopropanol 99.9%
10ml cyclohexylamine
2:20 p.m. - start of mixing, hotplate at maximum
2:28 p.m. - seems homogeneous to me, with small oily reflections but if I don't see any bubbles
2:32 p.m. - I see bubbles forming in the liquid
2:33 p.m. - I lower the temperature (as I usually do) and turn on the mixer, strong for a few minutes then reduce it a little
6:00 p.m. - I stop and let it cool
7:00 p.m. - add 100ml of isopropanol, mix well (magnetic) and freeze.
09:00 a.m. - I start to filter by gravity the frozen product by mixing regularly
12:00 p.m. - transfer to a pyrex dish for the end of drying (in an incubator)
8:30 p.m. - weighed and transferred to the fridge, 67.7gr. - (71.11%)
i have tried ! and it's my actual yield record haha thanks !!
55gr benzaldehyde
40gr nitroethane
10ml acid acetic 80°
3ml isopropanol 99.9%
10ml cyclohexylamine
2:20 p.m. - start of mixing, hotplate at maximum
2:28 p.m. - seems homogeneous to me, with small oily reflections but if I don't see any bubbles
2:32 p.m. - I see bubbles forming in the liquid
2:33 p.m. - I lower the temperature (as I usually do) and turn on the mixer, strong for a few minutes then reduce it a little
6:00 p.m. - I stop and let it cool
7:00 p.m. - add 100ml of isopropanol, mix well (magnetic) and freeze.
09:00 a.m. - I start to filter by gravity the frozen product by mixing regularly
12:00 p.m. - transfer to a pyrex dish for the end of drying (in an incubator)
8:30 p.m. - weighed and transferred to the fridge, 67.7gr. - (71.11%)
Did you leave a filtrate in the freezer?
at first I threw everything away... now I try to refreeze for the experiment; and this gives new crystals... sometimes even very long
but I don't know if it's a good product, I separate the refreezing from the rest of the harvest
View attachment 4664
Also, I heard you can recover N-Butylamine and re-use it again. How to do that exacly?
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