（溴甲基）甲基及二（溴甲基）芳烃的水解反应

Hydrolyses of (Bromomethyl) Methyl and Bis (Bromomethyl) Arenes

探讨了２，６－二甲基萘和４，４′－二甲基联苯的芳环侧链甲基溴化产物在几种条件下的水解反应。结果表明：２，６－二甲基萘和４，４′－二甲基联苯的芳环侧链上一个甲基被溴化的产物的水解较容易进行，两个甲基被溴化的产物的水解反应性很小；增大水溶液中碱的浓度和使用相转移催化剂可以促进两个甲基被溴化的产物的水解反应。

The hydrolyses of the products derived from the photobromination of side-chain methyl groups on 2, 6-dimethylnaphthalene and 4, 4'-dimethylbiphenyl were investigated under several reaction conditions. The results show that the hydrolyses of the (bromomethyl)methyl derivatives proceed relatively readily, whereas the bis(bromomethyl) derivatives exhibit very low reactivities toward hydrolysis, and that increasing the concentration of alkali and/or adding phase transfer catalyst can promote the hydrolyses of the bis(bromomethyl)derivatives.