N-Iodosuccinimide → 6-chloro-3-iodo-N-(4-methoxybenzyl)-N-phenylimidazo[1,2-b]pyridazin-8-amine

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Reaction Steps

To 6-chloro-N-(4-methoxybenzyl)-N-phenylimidazo[1,2-b]pyridazin-8-amine (940 mg, 2.57 mmol) from Example X, step (1a) in chloroform (10 mL) at room temperature was added NIS in one portion and the resulting mixture was refluxed for 5 h. Concentration and purification by flash chromatography provided 6-chloro-3-iodo-N-(4-methoxybenzyl)-N-phenylimidazo[1,2-b]pyridazin-8-amine as a foamy, yellow solid (960 mg, 76%). LCMS [M+H]+ 490.

Provenance & Evidence