Paprasta metilono sintezė (bk-MDMA)

karamelosanto

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HI, Ačiū, kad dalijatės šia sinteze, manau, kad ji labai aiški.
Esu iš Pietų Amerikos ir čia šiek tiek sunku rasti DCM. Tačiau galiu pabandyti jį kaip nors rasti. Galbūt nusipirkti jį iš Kinijos.
Noriu paklausti. Ar galite pateikti visų regentų sąrašą su kiekiais, kad būtų šiek tiek lengviau suprasti, ką turiu nusipirkti. Jei įmanoma, su apytiksle kaina.
Ačiū!!!
 

Professor11

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Pode me mandar uma mensagem? Sou da América do Sul também, estou iniciando na produção de Metilona.
 
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Lentelėje nurodyta, kad 40 % metilamino tankis yra 0,89 g/cm3, taigi 20 ml gaunama 7,18 g grynų metilamino dujų.
Palyginkime metilamino ir jo hidrochlorido molekulines mases:
M (CH3NH2)HCl = 67,518 g/mol
M CH3NH2 = 31,057 g/mol.
Santykis = 2,174
Jei naudosite sintezės proporcijas, reikės 15,6 g metilamino hidrochlorido vietoj 20 ml 40 % metilamino tirpalo.
Metilamino hidrochloridą reikia ištirpinti iš anksto santykiu 1 g ir 2,5 ml vandens (15,6 g ir 39 ml).
Paruoškite natrio hidroksido (NaOH) tirpalą iš 18 g ir 54 ml vandens, atvėsinkite jį ir supilkite į kolbą su 2-bromo-3,4-metilendioksipropiofenono tirpalu. Po to įpilkite metilamino hidrochlorido tirpalo. Tada tęskite darbą pagal instrukcijas.
 
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arundo

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Hello, I'm doing the math, and I see that the molar ratio of NaOH isn't equivalent with methylamine HCl. It doubles. It's for some reason?
 

antrax

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Noriu pabandyti atlikti bk-MDMA cheminę sintezę Jau nusipirkau visas reikiamas chemines medžiagas, pradėsiu tiesiogiai nuo pirmtako 2-bromo-3',4'-(metilendioksi)propiofenono (CAS numeris: 52190-28-0), nes jau nusipirkau jį iš Kinijos cheminių medžiagų tiekėjo ir sumokėjau 280 dolerių už 1 kg su įskaičiuotu siuntimu, nuo 25 kg mokėsiu po 200 dolerių už kiekvieną kg.
kg su įskaičiuotu siuntimu.

Metilamino 40 % vandeninį tirpalą nusipirkau iš Lenkijos tiekėjo, nors jį rasti nebuvo lengva, o kitų cheminių produktų lengvai galima įsigyti šalies rinkoje, išskyrus 36 % druskos rūgštį, radau tik 35-38 % analitinio laipsnio druskos rūgštį, kurią ir nusipirkau, magnio sulfato nežinojau, kokį pirkti, todėl nusipirkau bevandenį.



Vadovausiuosi šia bk-MDMA chemine sinteze, nes ji atrodo lengvesnė nei ta, kuria pasidalijote, tačiau galiu klysti, norėčiau, kad išsakytumėte savo nuomonę.

http://bbzzzsvqcrqtki6umym6itiixfhni37ybtt7mkbjyxn2pgllzxf2qgyd.onion/threads/bk-mdma-synthesis-easy-and-fast-method.6423/

Ačiū!!
 

Eddybeaumont

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hello mate, can you give me an address to buy cas 52190-28-0 please?
 

Osmosis Vanderwaal

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Someone asked me the other day about using sesamol to get MD-P1P, and it looked possible. Any opinion on that?
DBVaQ6hicT
 

Wan Jack

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In a reaction kettle equipped with a condensing reflux, stirring, dropping and heating device, 111.3 g of catechol, 500 ml of dichloroethane and 166 g of ZnCl2 were added, stirred, cooled to 0-5°C, and 140 g of propionyl chloride was slowly added dropwise for about 2 hours, then the temperature was raised to 20°C and the reaction was continued for 15 hours. After the reaction was completed, water was added for dilution, and the organic phase was separated. The organic phase was sequentially acid-washed and washed with water, dried with sodium sulfate, desolventized, and the residue was recrystallized from ethanol to obtain 144 g of solid 3,4-dihydroxypropiophenone with a melting point of 145-146°C, a content of 98%, and a yield of 85%.
 
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William D.

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Yes, this method is more understandable. But I heard that you can use iodine as a Lewis acid catalyst. For more moderate conditions. I did not have time to check it, but I think that there is need study. Because the chinese intermediate of this substance have is of very poor quality, I think they have problems with the synthesis.
 

Wan Jack

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Please refer to the next step( Patent: US1964973 , 1932)
 

Wan Jack

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Sesamol Obtain MD-P1P No relevant information found
 

Wan Jack

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Preparation of 3,4-methylenedioxypropiophenone
Methanesulfonic acid (MSA, 288 g) and propionic anhydride (156 g) were charged into a 1-liter reaction flask. The mixture was cooled to 0°C and 122 g of 3,4-methylenedioxybenzene (MDB) was added under stirring. The reaction mass was maintained at 0°C to 5°C for 4 hours under stirring. After the completion of the reaction, the reaction mass was diluted with water and the 3,4-methylenedioxypropiophenone product and unreacted MDB were extracted using toluene. The toluene layer was distilled to recover 13 g of unreacted MDB and obtain 142 g of 3',4'-methylenedioxypropiophenone (GC purity > 98%, yield 131% w/w based on consumed MDB). The water layer was distilled to recover 273 g of MSA (purity > 98%), which could be reused in subsequent batches.
 
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