5-iodopyrimidin-4-amine

163133-86-6

91416-96-5

The general procedure for the synthesis of 4-amino-5-iodopyrimidine from the compound (CAS:163133-86-6) is as follows: 4-aminopyridine (0.970 g, 10.3 mmol) was dissolved in 20 mL of acetic acid, and iodine monochloride (1.67 g, 10.3 mmol, 1.01 eq.) was added to produce a large amount of N-iodine-substituted intermediates precipitate immediately in the reaction system. The reaction mixture was refluxed for 3 hours under argon protection. Upon completion of the reaction, the mixture was cooled to about 10 °C with a water bath to induce complete precipitation of the product. The precipitate was collected by filtration and dried to give 4-amino-5-iodopyrimidine as a pale yellow solid (1.4 g, 62% yield).