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

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?
 
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Napisal sem vam sporočilo PM.
 
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Taiwan

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Pozdravljeni, imam enako težavo, mi lahko pomagate?
 

viking1111

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Pozdravljeni, imam majhno težavo, za 25k 2bromovalero sem uporabil za kristalizacijo po pirolidinu in po pranju, uporabil sem za kristalizacijo 1,5l acetona in 0,38 kisline na 1kg broma, vendar tekočino za kristalizacijo vzamem 1l in naredim ph 2 z mešanico acetona in kisline, po 10h v zamrzovalniku se ni zgodilo nič (mešal sem 4 ure s pirolidinom pri temperaturi 55), kaj sem naredil narobe in kako to popraviti?
 

TERMOBAR

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Dober večer, oprostite, ali vas lahko prosim za pomoč? Na podlagi tega recepta sem naredil sintezo Alfa pvp https://bbforum.eu/tags/a-pyrrolidinovalerophenone vse sem naredil po opisu, razen destilacije etil acetata, zakisanje sem pripeljal do 5, dal v zamrzovalnik in soli niso izpadle, kako naj popravim situacijo? nato sem raztopino izparil do 1/2 pri temperaturi 74-77 in spet dal v zamrzovalnik in vse brez rezultata, morda se je kdo že srečal s tem? prosim, pomagajte mi!
 

WillD

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Če je v njem kislina, jo morate izpariti pri nizki temperaturi ali v vakuumu. Ostanke lahko dobite kot črno smolo. Za njeno kristalizacijo morate uporabiti kemično čist suh aceton. Če gre za gospodinjski aceton, lahko pride do težav. Poleg acetona obstaja tudi metoda čiščenja, če lahko smolo dobite in jo raztopite v vodi. Vodo s topilom izločite iz nečistoč in pri ohlajanju kristalizirajte izdelek iz vodne raztopine.
 

CalvinCandy

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Ali vam je uspelo tako kot v videoposnetku?
 

TERMOBAR

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Dober dan, hvala za pomoč, vse mi je uspelo, celotna težava, kot razumem, je bila v etil acetatu po njegovem popolnem pokvarjenju in razredčenju s suhim acetonom, ponovno sem ga zakisal in nato so izpadle soli.
 

Skurczolo

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To sem spet jaz. Uspešno sem sintetiziral a-pvp hidroklorid, zdaj pa želim poskusiti izdelati a-pihp z uporabo heksanofenona. Ali naj ga bromim v a-bromo-n-heksanofenon z enakimi postopki kot pri valerofenonu? Ali obstajajo kakšni nasveti, preden poskusim, ali je morda vse tako "preprosto" kot pri valerofenonu?
 

WillD

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Sinteza je skoraj identična (nekoliko morate spremeniti razmerja). Glavna težava pa se lahko pojavi pri kristalizaciji.
 

Xtrembendion

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Pozdravljeni , ko dodamo piro (265gr)v 2bromo (300gr+1080gr EA)temperatura ostane 25 stopinj Celzija tudi barva se ne spremeni. ali to pomeni, da sploh ni reakcije?
 

WillD

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Če se to zgodi, je priporočljivo, da RM segrejete za potreben čas (pri 40-60*C).
 

xirmsx12

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Ali kdo ve, kako sintetizirati MDPV? Ali je to samo Apvp, narejen z metilaminom? Izdelal sem že aphp in apvp, nikoli pa ne mdpv, zato me zanima, ali lahko iz 2-bromovalerofenona preidem na MDPV ali je postopek popolnoma drugačen.
 

WillD

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Ne, to je aromatski obroč z dioksolno skupino (kot mdma)
 

Win Win

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This better then 4mmc?
 

HIGGS BOSSON

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a-PVP strong stimulant like meth
 
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Win Win

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If compare with 4mmc which one better?
 

Win Win

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Is it a-pvp like mdma?
 

Win Win

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Understand thank you sir
 

darkcider

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Need help. having trouble with this synth. i have completed steps described verbatim.
During animation stage when i add the pyrro no i get no reaction.the RM stays at 25C and does not change color. Nor does it become self heating and no smoke is produced.
heated RM to 45C for reaction duration as suggested in comments. then mixture becomes self heating.
But the color does not saturate. the resulting top layer is clear with a neutral ph.
Bottom layer is a clear yellow & looks to be mostly EA. A-bvp was sourced via Chinese vendor from the forum.
Everything else used is verified. only thing is i did not distill EA.
Thanks in advance
 

darkcider

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Need help. having trouble with this synth. i have completed steps described verbatim.During animation stage when i add the pyrro no i get no reaction.the RM stays at 25C and does not change color.Nor does it become self heating and no smoke is produced. So, heated RM to 45C for reaction duration as suggested in comments. then mixture becomes self heating.
But the color does not saturate. the resulting top layer is clear with a neutral ph. Bottom layer is a clear yellow & looks to be mostly EA. A-bvp was sourced via Chinese vendor from the forum.Everything else used is verified. only thing is i didn't distill EA.\
Thanks in advance
 
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