中文摘要：

构建了一个可用于催化氧气氧化苄醇类醇到醛的新型催化体系(溴化铜/四甲基哌啶氧化物/哌啶).该体系以乙腈为溶剂,可以在50℃下高活性和选择性地催化氧气将含不同取代基的苄醇氧化为相应的醛.然而,该体系对于仲醇、脂肪族伯醇以及烯丙醇类型醇的氧化没有催化活性.

英文摘要：

A novel and simple catalyst system (CuBr2/TEMPO/piperidine)for the oxidation of primary benzylic alcohols to aldehydes by oxygen has been developed.This catalyst system shows high activity and excellent selectivity for the oxidation of various primary benzylic alcohols to the corresponding alde-hydes by oxygen in acetonitrile at 50 ℃without need of additional base as co-catalyst.However,the no-vel catalyst system is not effective in the oxidation of secondary benzylic alcohols,primary aliphatic alco-hols and allylic alcohols.