2,4-Dimethylbenzyl chloride → Salicylic Acid

Beteiligte Stoffe

Reaktionsschritte

A glass-made reactor was charged with 5.4 g (0.02 mole) of 3-tert-butyl-5-phenylsalicylic acid, 30 ml of glacial acetic acid, and as a catalyst, 1.4 g of anhydrous zinc chloride. The resultant mixture was heated under stirring and maintained under reflux. Then, 12.4 g (0.08 mole) of 2,4-dimethylbenzyl chloride was added dropwise over 6 hours to conduct a reaction. After completion of the dropwise addition, the reaction mixture was aged for 2 hours under reflux to complete the reaction. The weight average molecular weight of the thus-obtained resin was 1680.

Herkunft & Nachweise