Síntese de 2C-feniletilaminas

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Alguém tem informações sobre a bromação de 2C-H com n-bromosuccinimida? Vi algumas pessoas mencionarem isso em outros lugares, mas não encontrei nenhum artigo.
 

Raxmil

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Também estou procurando por isso, mas não consegui encontrar as informações detalhadas
O que eu sei é que você pode fazer isso em GAA ou DCM, mas não tenho ideia da proporção
 

amieri

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There's a person in maybe theehive on Reddit.i believe the also have a mescaline synth posted too and a few others.
 

btcboss2022

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Tenho uma dúvida sobre a última etapa da síntese do 2CB. Diz "The reaction mixture was allowed to return to room temperature, filtered, and the solids washed sparingly with cold acetic acid" até que eu saiba que o ácido acético se torna sólido a 16-17C, então o que significa exatamente ácido acético frio?
Obrigado.
 

G.Patton

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Olá. Estou presumindo que o ácido frio significa temperatura ambiente porque há uma explicação de que a reação libera calor.
 
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btcboss2022

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Ok, ok, eu também pensei nisso, mas preferi confirmar, pois você sabe que quando dizemos frio normalmente queremos dizer do freezer, não RT hahaha, mas com ácido acético não é possível ;-) obrigado
 

w2x3f5

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Não entendo bem por que lavar o hidrobrometo de amina, é impossível usá-lo, ele queima. É melhor purificar e obter o cloridrato, e as perdas são menores, para evitar tentativas duvidosas de lavar o pó de bromo.
 
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Entendo que o bromo elementar restante evaporará do produto no ar, assim como qualquer solvente, de modo que não restará nenhuma quantidade razoável com o tempo. Produção de HCL sem secagem de HBr - boa sorte para obter um produto mais puro, pois talvez você tenha que lidar com sais de bromo na solução de bromo/GAA e com o próprio bromo.
 

w2x3f5

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Não vejo nenhum problema em bater os restos de bromo com tiossulfato, depois levar o ph a um meio alcalino e coletar o óleo com um solvente.
 
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(R)-(+)-α-metilbenzilamina Número CAS:
3886-69-9 É proveniente dos pulmões? Ou é absorvida pelo estômago? Ela pode ser usada diretamente?
(R)-(+)-α-metilbenzilamina Número CAS:
3886-69-9 É proveniente dos pulmões? Ou é absorvido pelo estômago? Ela pode ser usada diretamente?
 

G.Patton

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Não tem efeitos psicológicos.
 

amieri

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Onde se obtém o 2,5 dimetinitrostyrene?
 

HerrHaber

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Condensação de Henry do 2,5-dimetoxibenzaldeído com nitrometano na presença de uma amina primária como catalisador.
 

amieri

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It blows my mind how far I've come in this since I wrote this . You guys are all works of inspiration thanks for sharing
 

Newbee

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@HEISENBERG @WillD @G.Patton
Question to you guys.Is it possible to perform bromination of 2ch to 2cb by NBS (N-Bromosuccinimide)
instead of elemental bromine (br2)
 
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amieri

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That's seems to be the new go to I see alot.i need to get some succinimide acid n give it a try.
 

Newbee

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i found some writeups on thehivee but im not sure about it i also cant try do it on my own. but NBS seems to be safer to use than BR
 

amieri

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I use a 2×2×4 grow tent in its side with a 8" inline fan going out the building as a hood up on a folding table definitely does the job,still wear a mask non the less. Make sure you have a 5% sodium thiosulphate solution on hand in case of a accident and a rubber made bin with enough of that solution to run through you glass at the end.and think every step out. You got this my friend can't wait to hear of your success.
 

amieri

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Sure you can, obviously dig as deep as you can researching hand but the fact you came this far says a lot.so keep pushing and if you waste something you at least gain the experience.now safety if thats what your concerned about thats a horse of a different color
 

Rabidreject

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I just wanted to say thanks for this incredibly involved set of syntheses.
It is really impressive.
It’s funny, I made quite a few different nitrostyrene’s and nitropropene’s and then when I started reducing them and getting decent yields on active molecule’s, I started thinking okay, well it can’t be that much harder to produce the 2c-x compounds, then you see people making 2c-b and presumably other haloginated 2c’s and you think ah okay.

Then you start digging into the alkylated 2c compounds and my oh my does the chemistry take a jump in complexity!!

Anyway, I’m pretty convinced that my next major project is going to have to be the ethylated 4 position.
Is that a friedl-crafts alkylation you do to the 2,5-dimethoxyacetophenone, I mean in order to get from that to the 2,5-dimethoxy-1-ethylbenzene?

I think the most annoying part of it is that I’m going to have to get a vacuum pump that runs to super high vacuum!

Anyway, be prepared to be bugged by me a lot in the coming months/years because once I set my mind to something, I WILL learn how to get it done. It often involves harassing old posters! Ha
 
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