Sinteza amfetamina iz P2NP prek SnCl2 in Zn

yuiopjkl

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V primerjavi z redukcijo P2NP na aluminijevem amalgamu ta metoda ponuja bistveno mirnejšo reakcijo (Reakcija ni eksotermna ), boljši izkoristek (90 %) in zelo čisto snov (dodatno čiščenje ni potrebno).

15 g P2N0 raztopimo v 50 ml brezvodnega acetona
V NADALJEVANJU JE TREBARAZTOPINE RAZTOPITI.
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100 ml bučko z okroglim dnom postavimo na magnetno mešalo, opremljeno s povratnim hladilnikom. Dodamo aceton in 42 g dihidrata kositrovega(II) klorida
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Vključite mešanje, počakajte, da se kositrov klorid raztopi, in dodajte raztopino P2NP v acetonu
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Mešamo 20 minut, temperatura se počasi dviguje. Znižanje temperature mešanice pomeni konec reakcije. V kozarec damo 150 ml hladne vode in 4 ml 36% klorovodikove kisline, ki jo med mešanjem počasi dodajamo zmesi. Barva raztopine se spremeni
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Pripravimo raztopino natrijevega hidroksida (200 g na 200 ml vode), jo ohladimo na sobno temperaturo in dodamo zmesi do pH>10 (v kislem ali nevtralnem okolju je ekstrakcija oksima nemogoča), takoj nastane oborina anorganskih soli.
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Ekstrakcija 3 x 50 ml porcij etil acetata. posušimo z brezvodnim magnezijevim sulfatom. V čašo z magnetnim mešalnikom damo 60 ml ledene ocetne kisline in dodamo predhodno dobljeno raztopino (oksim v etil acetatu).
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Med mešanjem dodamo 10 g cinkovega prahu.
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Mešajte 15 minut.
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Dodajte ohlajeno raztopino natrijevega hidroksida (50 g v 100 ml vode) do pH>10.

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Mešanico filtriramo, dodamo 50 ml diklorometana, ločimo organsko plast in dodatno 3-krat ekstrahiramo vodno plast z 20 ml DCM.
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Organski ekstrakti se združijo in posušijo nad brezvodnim magnezijevim sulfatom.
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Dobimo raztopino 10 g amfetaminske baze v DCM. Dodamo 50 ml brezvodnega acetona in želeno kislino, da dobimo ustrezno sol.
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BlueDex

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TucoSalamanca.

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koliko ml acetona uporabimo tukaj
 

yuiopjkl

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Dokler se ne raztopi ves kositrov klorid
 

TucoSalamanca.

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Ali imate 37-odstotno klorovodikovo kislino?
 

TucoSalamanca.

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ali lahko tukaj uporabim 37-odstotno klorovodikovo kislino nepravilno prevedeno
 

yuiopjkl

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Mislim, da je
 

TucoSalamanca.

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Ali torej pripravimo raztopino iz 200 ml vode in 200 g natrijevega hidroksida in jo dodamo sem?
 

blacky2340

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Zakaj uporabljate dcm namesto drugih topil?
 

Bigballen

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Rad te imam
 

blacky2340

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Tudi jaz te imam rad
 

Bigballen

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Zdaj moramo ločiti dekstroamfetamin in ga zagotoviti množicam! Srečno
 

Bigballen

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Koliko želene kisline je treba dodati na koncu?
 

blacky2340

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Na 1 ml koncentrirane žveplove kisline v razmerju 10:1 nalijte 10 ml acetona. S pipeto ali brizgalko počasi kapljajte raztopino, dokler ne dosežete pH 5,5. Če je prekislinjena, dodajte več proste baze, če je močno prekislinjena in se spremeni v tekočino, potem v a/b in ponovno kristalizirajte.
 
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Bigballen

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Ali poznate druga topila, ki bi jih lahko uporabili namesto DCM?
 

yuiopjkl

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Uporabite lahko nepolarno topilo (eter, benzen, toluen)
 

ActionAyi

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Razmišljal sem tudi o toulenu, vendar mislim, da je razlika v gostoti premajhna, mar ne ?
 

G.Patton

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Pozdravljeni, hvala za vaše poročilo! Res je zanimivo. 10 g proste amfobaz je 80,4-odstotni izkoristek, kar je precej dobro. Koliko soli ste dobili?
 

yuiopjkl

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Metoda je bila prekopirana s spleta.
Načrtujem, da jo bom v bližnji prihodnosti izvedel tudi sam.
Ko jo bom izvedel, vas bom o tem obvestil.
 

TucoSalamanca.

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Koliko ur bomo hladili raztopino natrijevega hidroksida?
 

yuiopjkl

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Dokler se ne ohladi na sobno temperaturo
 
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