How is 6-Chloro-2,8-dimethylimidazo[1,2-b]pyridazine (CAS: 17412-23-6) typically synthesized?

6-Chloro-2,8-dimethylimidazo[1,2-b]pyridazine is typically synthesized via a multistep process involving the reaction of 2,8-dimethylimidazo[1,2-b]pyridazine with thionyl chloride in the presence of a base. The reaction yields the chlorinated product with high selectivity and good yield. Commonly used solvents include toluene or dimethylformamide (DMF), and the reaction is carried out under mild conditions to avoid decomposition.