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What solvent did you use instead of benzene

This is the video I’m following https://bbgate.com/media/4-mmc-mephedrone-synthesis-complete-video-tutorial.37/ I’m following this video still using benzene because that’s what I already preferred but I’m skipping the bromimation step and wondering how much more bromoketome could I just add...

I also plan to do a recrystallization after all this just to have the most pure product possible but I want to get most impurities out before this just to be safe.

In the Buchner filter should I pour in the acetone and stir it around to help dissolve impurities before each vacuum? Also should the acetone be cold if so how cold freezer or fridge cold? Thank you

How much benzene should I add to the round bottom flask and how much 2-Bromo-4-Methylpropiophenone do you put in the Benzene and how much Methylamine 40% in water do you add to that mixture? I to want to skip the bromination reaction as well. Any other advice you can give when doing it this way...

If I’m skipping the beomination step and going with just 2-Bromo-4-Methylpropiophenone How would this process change. Could I get away with 500ml of benzene since I only have 1 liter and how much 2-Bromo-4-Methylpropiophenone Would I need to react with the 40% Methylamine in water in the...

I’m looking to make 4-mmc but I want it to be as pure as possible so once I make my 4-MMC that will surely have impurities how would I go about purifying and or recrystallizing it. I wouldn’t want to take or sell anything that isn’t top quality just to be safe. Thank you.

Where can I get Methylamine 40% in aqueous solution for 4-MMC synthesis in the United States? If not possible how would I go about preparing my own? Thank you.

Hi new to this stuff, my synthesis calls for Methylamine free base 40% in (aqueous solution) where would I obtained this without having to go through the trouble of ordering from a big chemical supplier? Thank you