Aminowanie 1-fenylo-2-propanonu (P2P) Leuckarta do amfetaminy i metamfetaminy. Skala Smale'a.

Selassi

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Swim otrzymał pytanie dotyczące innej odmiany tej metody:

Po pierwszym etapie (gotowanie z kwasem mrówkowym i formamidem) fazę organiczną ponownie gotuje się z wodą i NaOH zamiast refluksu z HCl.

Czy ktoś może mi wyjaśnić metrykę tego drugiego kroku? Swim nigdy nie robił tego w ten sposób, ale wydaje się, że oszczędza to dużo czasu w przeciwieństwie do oldschoolowej metody z refluksem HCl.

Jaką moc roztworu kaustycznego/wody i w jakiej ilości wprowadza się do reaktora na litr produktu?
Jak długo należy gotować tę mieszaninę reakcyjną w jakiej temperaturze?
 

waltjr5858

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You can do hydrolysis with a base or an acid...
 

G.Patton

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Czy używasz chłodnicy zwrotnej i wyciągu?
 

waltjr5858

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In a write up that most people are reading to do this leuckart with formamide and p2p specifically... what is the purpose of a 15 min reflux with 30% h2O2 with the reaction mixture after you have already done the first reflux with formamide and p2p. Does it clean up or oxidize something? I mean this is prior to the hydrolysis. I just can't think of what it would do. I mean most people do it without it but it was obviously added for a reason in a actual professional write-up.
 
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G.Patton

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Sorry, but I don't clearly understand about what "15 mix reflux" are you talking about? Can you be more precise. Refer to a step number.
 

waltjr5858

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It's not on these instructions. When making amphetamine after the first 24 hour reflux on a different set of instructions they would reflux for 15 minutes with 30% hydrogen peroxide and then go on with hydrolysis. What was the point of the peroxide?
 

G.Patton

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I have no Idea about what "different set of instructions" are you talking and hence can't answer your question.
 

waltjr5858

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Ok... but in general then what would happen to the resulting solution if spun up with 30% peroxide?
 

TheNut22

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Swoje silniejsze nadtlenki wodoru wytworzyłem z 12% H2O2. Po prostu ostrożnie odparowałem z niego wodę.
Poprosiłem o obliczenia asystenta AI-robota z chemii. Jest dobry w obliczeniach, ale nie oczekuj prawidłowych odpowiedzi
z halogenacji lub podobnych ...
 
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loadingST

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Wciąż nie wypróbowałem tej reakcji, ale przy dobrej hydrolizie z KOH, a następnie z HCL, powinno to dać wysoką wydajność i obawiam się, że praca z h2o2, aby nie tworzyć żadnych wybuchowych nadtlenków i po destylacji, aby nie wybuchnąć.
 

YenaneY

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This questions are mainly regarding the actual chemistry behind the synthesis...
Why does one for the formation of the amine from the intermediate need H2O2 and HCl in the synthesis of amphetamine but only HCl in the synthesis of methamphetamine?
 

Pinkbay

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sir, In step 3, is heating required?
 

rampage

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can you replace n-methylformamide with dimethylformamide?
 
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