nabh4

Hello, i have some old nabh4 that have caking in sealed plastic bottle. Can i still use this , just make a powder with it? Maybe it's a little less efficient ? Thanks

This post discusses the experimental synthesis of 4-Fluoroamphetamine, as well as optimization ideas. The example synthesis is on a small scale, starting with 10g 4F-P2NP, but it can be scaled by multiplication or addition if you convert to moles. Reagents: - 4-FluoroP2NP 10g - NaBH4 16g -...

i know that nabh4 method is the most preferred one due to its scalability, but quality wise, some say nabh4 meth has weaker effect and effect time even after separation of the racemic into d - isomer as far as i know, from p2p, there are al/hg, nabh4, leuckart anyone tried each synth? which...

I tried this reaction 3 times and I always had a problem with the NaBH4 not dissolving. I tried adding p2np for 6 hours but there is still a lot of it left. In the copper addition phase there are 3 layers, the bottom one is a layer of NaBH4. Please how do I get it to dissolve? I don't know what...

[CAS number:] 16940-66-2 [Hill molecular formula:]H₄BNa [Chemical formula:] NaBH₄ [Molar mass:] 37.83 g/mol [Boiling point:] 500℃ (decomposition) [Density:] 1.07g/cm3(20℃) [Explosion limit:] 3.02 %(V) [Flash point:] 69 °C Not applicable [Flash point:] 220℃ [Melting point:] >360℃ (slow...

After nabh4 addition is complete and mixed for a few hours after can you let the mix sit for a few hours and the freebase oil layer will rise to the top and can be seperated? this eliminates the need for dcm or toluene extraction but does effect yield.

Synthesis of Methamphetamine via NaBH4 From P2P https://bbgate.com/en-gb/threads/synthesis-of-methamphetamine-from-p2p-and-nabh4-reduction.9731/

Schéma de réaction Réactifs Alcool isopropylique (IPA) - 20 L; Eau distillée - 6.2 L; Tétrahydruroborate de sodium (NaBH4) - 1739 g; P2NP - 1000 g; Chlorure de cuivre(II) - 105 g; Hydroxyde de sodium (NaOH) en solution aqueuse 25% - 8 L; Acétone sèche - 2.5 L; Acide sulfurique (ou Acide...

https://bbgate.com/threads/one-pot-amphetamine-synthesis-from-p2np-with-nabh4-cucl2-1kg-scale.70/ Can I use STAB instead of NabH4 in this route, people in the forum say that STAB can be used in case of glacial acetic acid

Nabh4 is not available for personal purchase in my country, so I wonder if anyone has used STAB instead of Nabh4, as far as I know STAB is a mild reducing agent, but I don't know if it can reduce P2NP, and cyanoboron Sodium hydride is highly toxic and I'm not going to try this, if anyone has...

Well Howdy there folks! There’s a lot of info and conversations and loosely, reliable syntheses on many forums discussing using 2 particular reagents, but I need something objective. I’m looking for this “gold standard” synth everyone is having success with using Sodium Borohydride and...

Amphetamine synthesis via NaBH4 reductive amination from P2NP. https://bbgate.com/threads/one-pot-amphetamine-synthesis-from-p2np-with-nabh4-cucl2-1kg-scale.70/

Hey folks, going through my notes (read below) I am wondering about three main questions right now: My questions now are: What PH do I need to bring the reaction to before adding DCM? Is it necessary to extract the aqueous phase with IPA or can I just extract with DCM and distill after...

Introduction I represent to BB audience Methamphetamine synthesis method of 1-phenyl-2-propanon (P2P) reductive amination by NaBH4. Following method allows obtaining and large batches of product. The hardest problem of this method is the heat generating during exothermic reaction of imine...