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

[Chemdog010297]

If you have no ability to freeze precipitate the p2np, can u separate the alcohol layer and evaporate solvent or acid extract ?

 

[GhostChemist]

Evaporation is bad idea
Better is adding some portions of water

 

[GhostChemist]

"p2np oil or acidify to salt" - p2np can't be forming the stable salts, this is nonsense (we do not consider anion salts in this case)

1. p2np decompose upon overheating
2. In the presence of base or acid, this instability is amplified: base may trigger Michael-type polycondensation, while acid can cause isomerization or hydrolysis