Σύνθεση γλυκιδικού άλατος BMK (άλας νατρίου) από βενζαλδεΰδη

qwe111

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Long time no see, sir: Since 5449 is not available now, I am considering a new way to make P2P.
If I start from 14 and add 1:1 phosphoric acid to start the reaction, can I get P2P? Before that, is there anything else I need to do?

Or do I have to add sodium hydroxide solution first, cool and crystallize to get 5449. Then react with phosphoric acid to get P2P?

I have seen another link, and it may be due to translation reasons, the names of many chemical substances are different, and I can't be sure. If you can give me an answer, I would be very grateful!
 

G.Patton

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What is 14? Can you name substances in accordance with IUPAC or their CAS? I don't understand you.
 
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qwe111

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Hello Sir:
I successfully made 5449 using the method in the post.
Then I made p2p.
Meth was made using sodium borohydride.
Customers reported that the effect of methamphetamine was very weak.
I want to know why.
The sodium salt obtained by this method was very wet. I had no way to dry it. I only used a Buchner funnel to filter out some of the water. I went directly to the next step of the reaction when the sodium salt was still very wet.
I used a small amount of water to dissolve the sodium salt, and then added 85% phosphoric acid. Probably because the sodium salt was not completely dried and contained a lot of water. The mixture could only be heated to about 100°. The mixture boiled very violently in the reactor. So much so that the coolant refrigeration device of the reflux condenser was heated to 60-70°. It was completely unable to cool a large amount of steam.
After about 6 hours of reflux, the heating was turned off and the mixture was allowed to separate into layers. The P2P obtained looked very dirty. I used steam to distill P2P. The distilled P2P was very yellow in color. In the distillation receiving bottle, P2P floated on the top layer, and the bottom layer was water. After cooling, all P2P was at the bottom layer, and the top layer was water. Does this P2P contain other substances that have not reacted completely? The P2P remaining in the distillation flask is very viscous.

What may be the cause of these problems?
 
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