Alfa-PVP-synteesi (asteikko 1-10 kg). Täydellinen video-opetusohjelma.

[Ukspice]

@William Dampier

Tarvitsetko apua mittausten kanssa

Sen sijaan, että käytettäisiin :Valerophenone
Ostan nestemäistä : 2-bromivalerofenoni

Jos haluan käyttää 1 litraa

2-bromivalerofenoni

Kuinka paljon reagensseja tarvitsen litraa kohden:


-Bromivetyhappo (HBr) 48 %;?

-Vetyperoksidia (H2O2) 35 %?

-Pyrrolidiini (CAS 123-75-1);?????

-Etyyliasetaatti ;????

-Natriumkarbonaatti (Na2CO3) 20 % aq-liuos;????

-Dietyylieetteri (Et2O) ????

-EtOH 50 ???

-Dibentsoyyli-D-viinihappo ???

-Dikloorimetaani (CH2Cl2) 830 ml;

-Heksaani ????

Suolahappo kons. 35 % (HCl);.???

OLISI TODELLA APUA, JOS VOIT SAADA MINULLE MITTAUKSET 1 LITRAN 2-BROMIN KÄYTÖSTÄ. PLEASE?????

Jotta voin maksaa per reaktio, myös on saanto arvio noin 20% tappio
1 litra = 800g a-pvp?

 

[Marvin "Popcorn" Sutton]

Kirjoitin sinulle PM-kirjeen.

 

[Spikkel93]

Got the same question can u send me also in pm ?
Thanks in advance

 

[SpaceRocket]

hello, I have a question, I have all the steps. followed the process and have a nice a-pvp with a result of 80%. I do it on a larger scale between 1 and 0.5 kg bromo, but now I wonder how I can get large, beautiful crystals because if I try to recrystallize in water it grows. back like little needles. You can see on the picturen powder what i have made and the cristals sombody els but he dont want to tel me how he did it if sombody can help me wild be great!!!

 

[G.Patton]

Hi, how do u recrystallize it?

 

[SpaceRocket]

I am loking for method how to cristalize , when i want to cristalize i get nedel cristal like this on the photo

 

[G.Patton]

a-PVP crystallization

 

[RegulierTier]

Can I replace the ethylacetate with toluene or TBME?
I don't have a rotovap so destill under vacuum would be a problem...

 

[SpaceRocket]

I did it with 2 infrared lamps and had to evaporate 16.9 ethiel acetate in plastic containers, which took me 30 hours and i dry my powder also with the lamps that go very fast in view hours your powder is dry