Question Recrystalization of P2NP

[KokosDreams]

Hey folks,

as I am ordering my first P2NP soon I am looking for advice for the following subject:

Recrystalization of P2NP

I have read some things about this process in the forum and understood that it is recommended not only proof the quality of the P2NP but also to improve it's quality if it should be worse than wanted.

A user recommended to search for 'Isomer Seperation' I tried to find more information but couldn't.

I am now looking for a guide that explains how the recrystalization of P2NP works and what equipment + chemicals are needed for the procedure.

Any help would be highly appreciated.

Cincerly,

Koko

 

[Bartholomeus]

Mate next time please search more.

Dissolve 1g p2np in 2ml Isopropyl/Ethanol or Methanol
Then put in freezer and wait 1 day, when needles or crystals form, drain the remained solvent and dry the p2np.
Repeat few times until you get clean product

 

[KokosDreams]

Thanks a lot!

In the meanwhile G.Patton has sent me the guide for a recrystalization, additionally your information helps a lot!!

Cincerly,

Koko

 

[Roadium]

if you need any extrabooks or help id be glad to help. quite a bit of exp with this one.

 

[KokosDreams]

Please feel free to let me know.

I think for others here this information might be usefull aswell, but I'd love to have it in my DMs too, if that's alright!

 

[Evilcarrot1]

Just an amazingly easy synthesis p2np, I've not gone any further as I tried with sodium borohydride and had a run away.

 

[BRKNGBD45]

where can i find the guide for recrystalization?

 

[G.Patton]

Hello, read BB Wiki about P2NP. There is information. Also, read about it here.

 

[Evilcarrot1]

G. Patton its been a while since I've done any chemistry but the absolute easiest method I've used with otc chems for p2np was a base catylised addition of (was in literature as nitro ethanol which I couldn't easily lay my hands on) but I distilled glow plug fuel to remove the oil and used the nitro methanol to benzaldehyde and it scaled amazing was doing 200g batches easily

 

[KokosDreams]

Did you use Nitroethan or Nitromethan for the P2NP synthesis?

 

[Evilcarrot1]

Nitromethan

 

[KokosDreams]

Interesting, I didn't knew that Nitromethane works aswell for the synthesis of P2NP.
What is the difference of using Nitroethane and Nitromethane? Will there be indifferences in yields or other aspects like quality of the final product?

@G.Patton

 

[Evilcarrot1]

Try it you will be surprised very easy. Clean up is easy and then recrystalise for amazing yellow crystals

 

[KokosDreams]

That would be incredible as Nitromethane is so much cheaper than Nitroethane..how much P2NP do you yield for 1L Nitromethane?

 

[BRKNGBD45]

thank you

 

[G.Patton]

You'll get 1-Nitro-2-phenylethane CAS 6125-24-2, it is not P2NP.

 

[Evilcarrot1]

Im
I'm glad you said that. It was 5 years ago when I did this reaction and really thought it was p2np looked identical yellow needle like crystals a nightmare on the eyes and nose like p2np.

 

[Evilcarrot1]

Mr Patton I've just been reading up and nitro-2-phenylethan does not sound like my product. I've still got it in a freezer somewhere. I'm going to find some time this week and re-crystallise it's and do probably a melting point just to see if I'm in ball park for p2np. Is there any way I can confirm my product. I distilled model nitro engine fuel to remove the oil and believed it was a nitro methanol mix and reacted it with benzaldehyde I'm I was 99% it was p2np. I'm literally just a noob that finds this stuff interesting and I read some where about it done with nitro ethane so I substituted it.

 

[G.Patton]

I'm absolutely sure. In opposite case, it was not nitromethane.
Good idea

 

[Evilcarrot1]

I'm still 99% sure it's p2np, maybe I'm trying to convince myself. I can't wait to test it. I could take a pic but I can't currently get to it due to the amount of things piled in front of the freezer. I know your a god and anything I read on here that I take as fact is "your posts" I don't have a melting point aperatus but with p2np being in the 60's I should be able to do it in a capillary tube in water so will report back ASAP. Thanks for the replies G. Patton