Alfa-PVP sintēze (1-10 kg mērogā). Pilnīga video pamācība.

[Ukspice]

@William Dampier

Nepieciešama palīdzība ar mērījumiem

Tā vietā, lai izmantotu :valerofenons
Es iegādājos šķidrumu : 2-bromvalerofenons

Ja es gribu izmantot 1 litru

2-bromvalerofenons

Kāds reaģentu daudzums man būs nepieciešams uz litru:


-Hidrobromskābe (HBr) 48%;?

-Ūdeņraža peroksīds (H2O2) 35%;?

-Pirolidīns (CAS 123-75-1);?????

-Etilacetāts ;????

-Nātrija karbonāta (Na2CO3) 20% aq šķīdums;????

-Dietilēteris (Et2O) ????

-EtOH 50 ???

-Dibenzoil-D-vīnskābe ???

-Dihlormetāns (CH2Cl2) 830 ml;

-Heksāns ????

Sālsskābe konc. 35 % (HCl);...??

MAN ĻOTI PALĪDZĒTU, JA JŪS VARĒTU IEGŪT MĒRĪJUMUS 1 LITRA 2-BROM. PLEASE?????

Lai es varētu aprēķināt vienas reakcijas izmaksas, kā arī, vai ieguvums ir aptuveni 20 % zaudējumu.
1 litrs = 800 g a-pvp?

 

[Marvin "Popcorn" Sutton]

Es jums uzrakstīju īsziņu.

 

[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