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how do you use gassed IPA in this situation? How do you know when the ipa has been gassed enough?
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do you just gas until all the product has crystalized?
how do you use gassed IPA in this situation? How do you know when the ipa has been gassed enough?
You can weigh the IPA that is a great way to know the concentration. Weigh before and after gassing until lots of gas is escaping the solution and not absorbing.
Okay thank you. what would be a good concentration?
Reaction scheme:
View attachment 1473
The reaction mixture was made basic with sodium hydroxide, and the crude MDMA extracted into diethyl ether. After the volume of the organic solvent was decreased, the remaining residue was treated with hydrogen chloride gas to yield a gelatinous brown precipitate of impure MDMA hydrochloride.
The product can crystallize in chilled ether
No, DMF is impossible for this reaction
What concentration of formic acid is used? anhydrous? or is 80-85% okay?
I really hope that this technique will make it possible to make worthy crystals, or at least similar
Anhydrous formic acid u are unlikely to find. The reaction can be carried out without it, only with N-MethylFormamideWhat concentration of formic acid is used? anhydrous? or is 80-85% okay?
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