Yield:60565-88-0 84%

Reaction Conditions:

with potassium hexafluoridophosphate in ethanol at 20; for 2 h;

Steps:

1

Into a 250mL round-bottomed flask, 11.1g of toluene,5.1g elemental iodine,10.3g p-toluenesulfonic acid and 50mL dichloroethane,After that, 10.3g of 50% hydrogen peroxide was slowly added dropwise under stirring conditions,After that, it was heated to 60°C for 48 hours.After the reaction is completed,filter to remove solids,The filtrate was washed with water,After desolvation,Obtain 16.3g of intermediate bis(4-methylphenyl) iodonium p-toluenesulfonate;The obtained 16.3 g intermediate bis(4-methylphenyl) iodonium p-toluenesulfonate was dissolved in 10 mL of ethanol,Then, a saturated potassium hexafluorophosphate solution (14.7g potassium hexafluorophosphate dissolved in 200mL water) was added dropwise to it under stirring condition,Stir at room temperature for 2 hours,After the solid was precipitated in the solution, suction filtration was performed to obtain 15.2 g of the product bis(4-methylphenyl) iodonium hexafluorophosphate,Yield 84%

References:

CN113979834,2022,A Location in patent:Paragraph 0029-0032