Sinteza alfa-PVP (lestvica od 1 do 10 kg). Celotno video navodilo.

pachemguy

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Koliko metilamina bi uporabili za 1 kg bk ??
 

OrgUnikum

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262 g je absolutni minimum, realno je 280 g - 300 g.
To pomeni 700 g - 750 g 40-odstotne raztopine MeNH2 v vodi, poglejte sintezo 4-MMC, ki za pripravo/kristalizacijo uporablja EtOAc, saj za vodo ne bo delovala, kot je opisano tukaj.
 
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pachemguy

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Bakrov karbonat ni dober katalizator za to reakcijo bakrov kromat ali acetofenon opravita odlično delo Uspeh sem našel tudi z oljem mete in terpentinom
 

pachemguy

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Želim si, da bi lahko dobil moje roke na 55gal boben, ki bi kdaj želeli priti off nekaj od tega lmk lol
 

Ukspice

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@William Dampier

Potrebujete pomoč pri meritvah

Namesto uporabe :valerofenon
Kupil bom tekočino : 2-bromovalerofenon

Če želim uporabiti 1 liter

2-bromovalerofenona


Kolikšna je količina reagentov, ki jo bom potreboval za 1 liter:


-Hidrobromna kislina (HBr) 48%;?

-vodikov peroksid (H2O2) 35 %;?

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

-Etil acetat ;???

-Natrijev karbonat (Na2CO3), 20% aq raztopina;???

-Dietil eter (Et2O) ????

-EtOH 50 ???

-Dibenzoil-D-vinska kislina ??

-Diklorometan (CH2Cl2) 830 ml;

-heksan ????

Klorovodikova kislina konc. 35 % (HCl);...

ZELO BI MI POMAGALO, ČE BI MI LAHKO POSREDOVALI MERITVE ZA UPORABO 1 LITRA 2-BROM. PROSIM ?????

Da bi lahko izračunal stroške na reakcijo, ali je tudi ocena izkoristka približno 20-odstotna izguba.
1 liter = 800 g a-pvp?
 

bruhh

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Ali je v videoposnetku prikazana izvedba faze 4(Diastereomerija ) ?
 

Poseidongo

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Ali lahko namesto valerofenona uporabim kaj drugega
 

Heineken

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2bromo valefelon se lahko uporablja
 
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Heineken

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druge kemikalije brez dela za izdelavo pvp
 

w2x3f5

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Obstaja reakcija Friedelovega obrata, tudi Grignardova reakcija. lahko sledite tem potem
 

Poseidongo

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Ali je četrta stopnja pomembna?
 

Heineken

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vsi koraki so pomembni xD
 

Poseidongo

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Toda v videoposnetku je prikazana le do bucchnerjeve filtracije, ki je tretja stopnja
 

Heineken

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naslednji je izdelan iz kristalov, kot je steklo
 

Poseidongo

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Ohh, hvala lepa, brat. Toda ali lahko svoj postopek ustavim na stopnji 3, saj se pri tem proizvaja tudi prah ?
 

Heineken

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ja, ampak če u naredil kristal, potem u ima 99 % čistega, če u naredil sintezo dobro, ampak to, kako so pokazali na videu, ni dobro na 100 %.
 

Poseidongo

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Najlepša hvala za vodenje, brat 💪. Mislim, da nimam večje potrebe po izdelavi kristalov, saj se v naši državi prodaja le snov v prahu. Pri nas nihče ne kupuje kristalov
 

Robertos

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Pozdravljeni , imam nekaj vprašanj o 4. stopnji, lahko mi kdo pomaga?
 

maloo

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Ali racemična različica pred četrto stopnjo še vedno zagotavlja kakovosten izdelek? Ali pa stopnja 4 pomeni bistveno razliko?
 
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