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ChemicalBook CAS DataBase List 4-CHLORO-PTERIDINE
72700-48-2

4-CHLORO-PTERIDINE synthesis

2synthesis methods
-

Yield:-

Reaction Conditions:

with trichlorophosphate at 0 - 100; for 6.16667 h;

Steps:

129.A

A. A solution of pteridin-4-ol (1 mmol) in 10 mL of POCl3 is stirred at 0° C. for 10 min then at 100° C. for 6 h. The solution is concentrated. The residue is partitioned between ethyl acetate and water. Ethyl acetate layer is separated, dried over sodium sulfate, filtered and concentrated to give 4-chloro-pteridine.

References:

US2006/116368,2006,A1 Location in patent:Page/Page column 52