PHASE TRANSFER CATALYTIC SYNTHESIS OF 4-BENZYLOXYL-3-METHOXYLBENZALDEHYDE-COPOLYSTYRENE RESIN

摘要

4-benzyloxyl-3-methoxylbenzaldehyde-copolystyrene resin, a novel functional polymer material, was synthesized. The reaction of cross-linked chloromethylated polystyrene ( 1%DVB, 1.24mmolCl/g) with 4-hydroxyl-3-methoxylbenxaldehyde was performed under phase transfer catalyzed condition, in which DMF was acted as solvent, and K_2CO_3 as solid base, leading to the formation of 4-benzyloxyl-3-methoxylbenzaldehyde-copolystyrene resin. The effect of various phase transfer catalysts including PEG-400, 18-crown-6 ether, CTMAC, TBAC, and TBAI was investigated. Final products were characterized by FTIR and elemental analysis. The results obtained confirm that phase transfer catalytic synthesis of 4-benzyloxyl-3-methoxylbenzaldehyde-copolystyrene resin is a facile and effective method.