How is 2,4-Dichloro-5-iodoquinazoline (CAS: 959237-30-0) typically synthesized?

2,4-Dichloro-5-iodoquinazoline is typically synthesized through a multi-step process involving the iodination of 2,4-dichloroquinazoline followed by reaction with a suitable reagent. Common methods include the use of iodine in the presence of a catalyst like iron(III) chloride, leading to a high yield of the desired product. The synthesis requires precise control of reaction conditions to achieve high selectivity and yield.