This is a copy-paste. I’d like to know from experts if this is a good method.
4MMC "Russian Method"
Chemicals needed:
1. 2-bromo-4methylprophenone
2. methylamine
3. HCI aq.
4. NaOH
5. 1,4 Dioxan (optional)
6. Acetone
Step 1: dissolve 75g 2-bromo-4methylprohenone in200mL benzene
Step: 2 Prepare an aqueous solution of methylamine in two stages:
Stage 1: In 100 mL distilled cold water add 40g NaH (danger: exothermic reaction therefore use previously cooled water)
Stage 2: In 75mL distilled water add 67gr Methylamine, then mix with previous stage alkaline solution
Step 3: Add Methylamine solution to previous 2-bromo-4methylprophenone solution and mix thorughfully. Let sit and top layer will gradually turn yellowish.
Step 4: extract yellowish oil with a syringe and place in another container
Step 5: Add 250ml acetone, and mix with yellow oil.
Measure PH and should be around 10-11
Step 6- Dilute HCI (if pure) to 250mL acetone and add to the previous solution till PH Indicator turns red, Indicating an acidity of 5.5-6 PH and mix through fully for around 30 minutes. Will turn into powder.
Step 7:
Proceed to filter. Either with Vacuum filter or in cloth/filters and wash with acetone till product is off-white color (mix 1g of product with 3mL water and place in a shallow plate or similar and let dry naturally).
4MMC "Russian Method"
Chemicals needed:
1. 2-bromo-4methylprophenone
2. methylamine
3. HCI aq.
4. NaOH
5. 1,4 Dioxan (optional)
6. Acetone
Step 1: dissolve 75g 2-bromo-4methylprohenone in200mL benzene
Step: 2 Prepare an aqueous solution of methylamine in two stages:
Stage 1: In 100 mL distilled cold water add 40g NaH (danger: exothermic reaction therefore use previously cooled water)
Stage 2: In 75mL distilled water add 67gr Methylamine, then mix with previous stage alkaline solution
Step 3: Add Methylamine solution to previous 2-bromo-4methylprophenone solution and mix thorughfully. Let sit and top layer will gradually turn yellowish.
Step 4: extract yellowish oil with a syringe and place in another container
Step 5: Add 250ml acetone, and mix with yellow oil.
Measure PH and should be around 10-11
Step 6- Dilute HCI (if pure) to 250mL acetone and add to the previous solution till PH Indicator turns red, Indicating an acidity of 5.5-6 PH and mix through fully for around 30 minutes. Will turn into powder.
Step 7:
Proceed to filter. Either with Vacuum filter or in cloth/filters and wash with acetone till product is off-white color (mix 1g of product with 3mL water and place in a shallow plate or similar and let dry naturally).