Please help me improve some of my knowledge, because currently I can't find any relevant solutions.
After I kept trying to recrystallize D-methamphetamine, every time it turned into white transparent crystals (almost completely transparent, like glass), I asked a local manufacturer to check my...
Starting Reagents and Materials
6 g Synthetic ephedrine hydrochloride racemic
12 g I2
10.8 ml H3PO2 (50%)
20 ml H2O
50 ml 25% NaOH (15-20 г NaOH)
3 g sodium thiosulfate
250-300 ml DCM
30-50 g Na2SO4
100 ml Petroleum ether
HCl gas
100 g NH4Cl
25 ml H2SO4 83%
Flasks 250 and 500 ml
Glasses
Funnels...
Starting reagents and materials
6 g Synthetic ephedrine hydrochloride racemate
1.8 g Red phosphorous (P)
12 g Iodine (I2)
100-150 ml H2O
3 g Sodium thiosulfate (Na2S2O3)
24 ml 25% NaOH
250-300 ml DCM
100 ml Petroleum ether
HCl gas
100 g NH4Cl
25 ml H2SO4 83%
Flasks 250 and 500 ml
Beakers...
Introduction
In this work, a water or ethanol-water solutions of methamphetamine hydrochloride are obtained in the first stage. On the next stage, these solutions are crystalized by using of different methods to get methamphetamine hydrochloride (Ice) crystals.
Starting materials:
150 g...
Reactions proceed according to Scheme 1.
Scheme 1
Reagents and Materials:
10 g of pure P2P (steam distillation purified)
45-55 g of silica gel d=2.5-4 mm (NOT powder)
3 g of sodium borohydride (equivalent in moles)
65 ml of absolute isopropyl alcohol
18.1 – 20 ml of 35-40% aqueous methylamine...
https://bbgate.com/threads/methamphetamine-synthesis-from-p2p-via-al-hg.8568/
1) Production of Aluminum Amalgam
2) Reductive Amination and Extraction
3) Methamphetamine Free Base Isolation and Hydrochloride Salt Crystallization
Methamphetamine hydrochloride synthesis via Al/Hg reductive amination with salt formation.
https://bbgate.com/threads/methamphetamine-synthesis-from-p2p-via-aluminum-amalgam.184/
Author: TDC @DRTDC90 https://youtu.be/8c_nkVR4Kl0
Methamphetamine hydrochloride total synthesis video from P2P and N-methylformamide via Leuckart amination.
https://bbgate.com/threads/1-phenyl-2-propanone-p2p-leuckart-amination-to-amphetamine-and-methamphetamine-smale-scale.47/
Author: TDC @DRTDC90 https://youtu.be/eu4Q_sw_qRk