Síntese em vídeo do 1-fenil-2-nitropropeno (P2NP) a partir do benzaldeído e do nitroetano. Reação de Henry.

[HIGGS BOSSON]

Os problemas com o nitroetano na Europa começaram em 2007 e, gradualmente, todos os países impuseram restrições a este valioso reagente. E agora há duas maneiras: procurar fornecedores em países onde a legislação é fraca, com uma indústria química desenvolvida, por exemplo, no Bangladesh, ou sintetizar de forma independente, a metodologia que propusemos.

 

[Alojz]

O que é que pode ser utilizado para substituir ou sintetizar o nitroetano?

 

[Kvadprime]

You can find methods of syntes nitroethane in another thread

 

[Kvadprime]

I have aniline as a base - what yeilds can it give?

 

[G.Patton]

Try and figure out. Share us your research data. In theory, it's quite weak base and it would be not enough to eliminate -OH group.

 

[Kvadprime]

ok, I'll definitely write how everything went... I'm still waiting for my new labware to arrive

Thx

 

[rampage]

has anyone done the microwave version of this synthesis, curious as to the outcome?

 

[William D.]

This is an effective method. I irradiate at maximum power in short time intervals so that the mixture does not have time to boil.

 

[rampage]

that is the key, stopping the irradiation just prior or as soon as you see 1 tiny bubble rise up, did this method with very good success, simple but very effective. would be very interested if there's other synths that can be done using the microwave??

 

[William D.]

Stop when strong boiling begins. Yes, this is visible by bubbles. There are many different syntheses with MW, there are also on the forum. I think that ultrasound for p2np should also work well.