Pyridine → HCID 131724431, compound

Participants

Reaction Conditions

Reaction Steps

p-Hydroxystyrene (70 g) (VP-8000, manufactured by Nippon Soda Co., Ltd.) was dissolved in 320 g of propylene glycol monomethyl ether acetate (PGMEA) by heating, after dehydration by distillation under reduced pressure, the solution was cooled to 20° C. To the solution were added 0.35 g of pyridinium p-toluenesulfonate and 22.4 g of cyclohexane ethanol. t-Butyl vinyl ether (17.5 g) was gradually added to the solution to perform reaction at 20° C. for 5 hours. To the reaction solution were added 5.53 g of pyridine, and then 5.9 g of acetic anhydride was gradually added. The solution was subjected to reaction at room temperature for 1 hour. Ethyl acetate (320 ml) was added to the solution, and the reaction solution was washed with 150 ml of distilled water three times. The solvent was distilled off and the solution was concentrated. The thus-obtained oil was dissolved in 100 ml of acetone, and the solution was gradually poured into 2 liters of distilled water. The precipitated powder was filtered and dried, thereby 58 g of resin A-38 was obtained.

Provenance & Evidence