Synthesis instructions as PDF file for printing - kriemhild
Synthesis instructions as PDF file for printing - kriemhild
Synthesis instructions as PDF file for printing - kriemhild
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NOP http://www.oc-praktikum.de<br />
During recrystallization the cooling water bath prevents the rele<strong>as</strong>e of hot solvent vapors from<br />
the product solution, when the fl<strong>as</strong>k is removed from the microwave oven.<br />
W<strong>as</strong>te management<br />
Recycling<br />
The tert-butyl methyl ether evaporated during the work up of the crude product can be used<br />
<strong>for</strong> the recrystallization. The leftover ether is collected and redistilled.<br />
W<strong>as</strong>te disposal<br />
W<strong>as</strong>te Disposal<br />
aqueous ph<strong>as</strong>es solvent water mixtures, halogen free<br />
mother liquor from recrystallization organic solvents, halogen free<br />
sodium sulfate solid w<strong>as</strong>te, free from mercury<br />
Time<br />
Isolation of the crude product 2 hours<br />
Work up to the pure product 1 hour<br />
Recrystallization with drying about 2 hours<br />
Break<br />
After stirring the reaction mixture with water<br />
Degree of difficulty<br />
Medium<br />
4<br />
July 2005
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