باستخدام الكاميرا
Combine methylamine hydrochloride with sodium hydroxide in alcohol with balanced molar ratios of 1/1. You will notice a strong smell of methylamine and the appearance of a sodium chloride salt precipitate. At this stage you can add P2P oil and stir it for a while while closing...
Borohydride is a good reducing agent
Make sure it is pure copper chloride
I suggest you react p2np with aluminum amalgam. Try it in small quantities, starting with the correct amalgam. Add p2np in two stages and control the temperature of the amalgam.
Extract the free base with isopropyl alcohol
Yes, correct
If a transparent or slightly yellowish oil layer does not form in the separating funnel, it is important to see an oil layer when extracting the base.
If you don't see this, you won't have a free amphetamine base (maybe you reacted wrongly).
There is a concern about the tin chloride...
You can re-extract the basic acid of this salt that you obtained
Dissolve this salt in cold water, the ratio of water to salt is 1/1
Add 25% sodium hydroxide solution dropwise to pH12
You will notice an oily layer on top
Add the DCM solvent, mix it well, then throw it into the separating...
After alkalinity is carried out, the pseudoephedrine base is dissolved in the toluene. Separate the toluene from the water, then add clean distilled water to the toluene and separate it a second time to remove the sodium particles. Then pump Hcl gas to the toluene. The pseudoephedrine Hcl salt...
Dissolve it in alkaline water, pH 12, then extract it with toluene or xylene
Then wash the toluene with water once, taking care that the alkalinity does not decrease. Then separate the toluene and pump hydrogen chloride gas into the toluene. The crystals of pseudoephedrine hydrochloride will...
I had no problems with acid-base extraction
All you have to do is add acid and extract with solvent
Then add the alkali, extract again and combine the extracts together
The translator made a mistake in writing
I did not do that
I mean this picture, after the acid-base extraction and the second alkaline extraction, I had a free base in Dcm solvent, its color was light yellow, and I pumped hydrogen chloride gas to it, and the color became pink.
Amalgam is good
I mixed the base, ethanol, and formaldehyde together and added them to the amalgam. The amalgam was not violent, and when stirred, slight bubbles appeared, and the amalgam became thick like dough. I added formaldehyde a second time. Some of it had evaporated while heating the...
Sorry
I read in another synthesis of yours
You evaporate Dcm and add ethanol to the base, then the gas
But okay if the free base of meth in the solvent is Dcm
Adding hydrogen chloride gas is normal, so I can do this