4MMC Synthesis Report (100g 2B4MP)
1. 100g 2b4mp was placed inside of a RBF and 350ml of DCM was added. The solution was stirred for approx. 5 minutes, untill the 2b4mp was fully dissolved in DCM
2. 200ml Methylamine 40% was added in 3 portions (70ml, 75ml, 55ml), every 15 minutes. The temperature started to rise towards 28-30 °C, the colour started to turn slightly yellow
3. The temperature was set to 63 °C so that the RM could reach a temperature of 40°C - 38°C, on the top the temperature remained 30 °C, we assume it is because of the aeqeous layer which already started to form there
4. After 2h of synthesis, 500ml of DH20 was added and allowed to stirr for 5 min. The solution was given 20 minutes to seperate layers, The washing procedure was repeated a total of 4 times, organic layer was kept to proceed.
5. Approximately 175ml of DH2O was added to the previously obtained Meph-Oil (300ml). Stirrer was turned on so that the layers will not seperate
6. ph 5 was reached and the solution was set aside to sepeate layers. The top layer was decanted, the ph of both layers was confirmed.
7. 150ml of Isopropyl 99% have been added to the aeqeous layer of the acidified solution and the solution was heated to 70 °C until slight boiling bubbles showed, the solution was put inside of a glassware dish and locked in a shelf (dark & sealed). Crystalization will take approximately 5 days and the report will be completed once the crystalization was completed.
8. The remaining DCM layer was put into the freezer for 10h as 4MMC remained inside of the DCM layer, when removed a layer of crystals has formed on top (wet weight: 18.41g). It will be put aside for later processing and to learn recrystalization of 4MMC.
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