Preparation and application of 4-bromo-2-iodophenol_Kain Industrial Additive

background and overview[1] 4-bromo-2-iodophenol, also called 2-iodo-4-bromophenol, is an organic intermediate that can be prepared by nitration and reduction of p-bromophenol, followed by diazotization and iodine substitution. preparation[1] synthesis of 2-nitro-4-bromophenol: add p-bromophenol to the chemical reaction kettle, then directly add dilute nitric acid at room temperature, let it stand for 20 minutes, fractionate the…