| Overview |
| Instructions |
| Operating scheme |
| Substances |
| Equipment |
| Evaluation |
| Analytics |
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; Side reactions |
Isolation of trimyristin from nutmeg |
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Synthesis instructions as PDF file for printing |
ReactionThe reaction apparatus consists of a 250 mL round-bottom flask with a magnetic stir bar and a 100 mL soxhlet extraction unit with a reflux condenser. 25 g of finely ground nutmeg are placed into the extraction sleeve and covered with a little glass wool. 150 mL tert-butyl methyl ether are placed into the flask and whilst stirring, the solvent is heated to reflux until the solvent leaving the extraction sleeve is colourless (approximately 5 hours).Work upThe solvent is evaporated with a final pressure of 20 hPa. The flask containing the residue is cooled in an ice bath or the refrigerator until the contents has crystallized to a thick slurry.Crude product yield: 12 g; The crude product is recrystallized from the minimum amount of ethanol. Prior to filtering the crystals, the flask is placed into the refrigerator for at least 30 minutes. The crystalline slurry is filtered and the product is dried in an evacuated desiccator over silica gel. Should the crystals not be colourless after the first recrystallization, a second recrystallization is carried out. Yield: 6.5 g; melting point 54-55 °C; Duration of the experimentWithout recrystallization 6 hoursWhere can I stop the experiment?Before and after the evaporation of the solventRecyclingThe evaporated tert-butyl methyl ether and the evaporated ethanol from the mother liquor are collected and redistilled. |
Suggestions for waste disposal |
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