Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials. 7752-82-1, name is 5-Bromopyrimidin-2-amine. A new synthetic method of this compound is introduced below., name: 5-Bromopyrimidin-2-amine
c) 6-Bromo-imidazo[1,2-a]pyrimidine; 50 mmol of 5-bromo-pyrimidin-2-ylamine are dissolved in 200 mi of saturated aqueous sodium hydrogencarbonate solution. 55 mmol of chloroacetaldehyde are added to the reaction mixture and the mixture is stirred for 24 hours at 25C. The mixture is extracted with ethyl acetate (3×300 mi) and the combined extracts are dried over sodium sulphate and evaporated under reduced pressure. Flash chromatography (Si02 60F) of the residue provides the title compound which is identified on the basis of its Rf-value.
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Reference:
Patent; SPEEDEL EXPERIMENTA AG; WO2005/90305; (2005); A1;,
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia