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Behave like a normal person, not paranoid but friendly and do not buy certain solvents in amounts >5 liter at one place at one time (acetone, toluene, DCM...) and nobody thats it. Thats not how you get in trouble. Solvent smell and neighbors, now thats a problem, never forget you will not smell...

It is the law so every legal seller in Germany is required to get ID for age verification. Take it easy and just don't act paranoid. Aurelio.com - no problem. Register and send them a friendly mail with "your" ID included, any decent fake is just fine, nobody is going to check it. Don't order...

Interesting, thanks for bringing this to my attention.

160 °C is the wanted temperature in the reaction. Water can come from adding water to anhydrous formamide, using a mixture of formamide and ammonium formate (Ingersoll reagent) or by adding 85% formic acid (contains 16 % by weight water). At 160°C the reaction will expel more water then you want...

Nickel catalyzed Leuckarts, I do not think it actually worked for anybody. Other catalysts the same. I don't know. As said, I do not have a golden bullet. Raney Nickel + Ammonia in water + alcohol + hydrogen + 10 to 100 bar pressure and P2P of course. 80% to 95% yield. If you can melt Aluminium...

Ah the Leuckart is a riddle yes. What I can tell you is that ammonium formate is the reagent which reacts with the P2P, not formamide. Thats why the reaction with formamide alone does not work well but it does when formic acid is added. Comes out it is not the acid but the water in the acid...

Question: Do you want real Crystal Meth aka d-Meth ? Or do you want something you can sell as it like this Mexican crap whats just d/l-Meth in disguise? I am absolutely sure 98% of the people here have never encountered real Crystal Meth. Many are convinced they have, some even are convinced...

Uncle Fester is in prison now. Sadly not for all the crap he wrote in his books but for actually cooking and thats a shame. Well Mr TheNut22, sorry to say, you followed UFs writings and got *****ed. I mean it is not unknown that his writings are bullshit, well it is good stuff and bad stuff...

Sadly the reaction of BzMgCl and Acetonitrile gives ~40% yield on P2P at best and this also only if the Grignard reagent is prepared in ether and the solvent then swapped with Benzene. In ether its 28% and in THF or Toluene its even worse. Very sad this. French article and translation attached...

PS: Oh maybe I was confused, did you just talk about the hydrolysis when adding the 20% KOH? If so, well, this is too strong, to highly concentrated and well I found something and here it is: 0,1 M is 4 gram of NaOH per liter water. 20% KOH is over 200 gram per liter. You see the difference...

You do not have to base this extract. P2P does not like water and xylene the same. So just wash the P2P/Xylene twice with plain water, say add water in the sep funnel, shake, shake a lot more, wait for separation, separate and repeat. If the Xylene layer stays turbid - no problem, the water...

No. This are different oxidations. You need a BV, a Baier Villinger oxidation.

It is called "flow-chemistry"

The product of the BV oxidation, the vinyl-acetate is miscible with Xylene, the P2P formed by hydrolysis is also miscible with Xylene, so anything what drops out is just crap. Filtration is a must if any of your intermediates or the final product in solvent is not clear but cloudy or turbid.

P2P is very well soluble in EtOAc - Ethyl Acetate. It is also soluble in Benzene, Toluene, Xylene, Ether, DCM but it is only sparingly soluble in Naphta aka Shellsol aka Wundbenzin/Reinigungsbenzin. A mixture of Ethyl Acetate and Naphta 50/50 works great.

Yes, he is right. HI 57% will do the job nicely, you need to use a good excess of it though, concentration must stay > 40% all the time. You can reduce the amount of HI needed by adding H3PO4 85%+ over the course of the reaction what will dehydrate it and keep the functional HI concentration...

P2P and strong bases do not go well together, the P2P tends to self-condense and polymerize into the infamous red tar. Using a HUGE amount of base/alcohol by volume is the only way I can think of to avoid this to happen excessively. If the P2P is less concentrated there is less opportunity to...

You are right. Without H2SO4 as catalyst you need mad amounts of GAA to get peracetic acid as acetic acid is simply not strong enough. That is why performic is often preferred as formic acid IS strong enough to self-catalyze peracid formation.

I am quite sure nitrochemis has great quality, I would order there if it was not for other personal reasons which make this impossible at the moment. The samples were given to me by others who had problems getting decent results, none of them told me though from whom exactly what sample was...

thx