Reactivity of AllylSmBr/HMPA： Facile Synthesis of 3-Aryl-1,2,4-benzotriazines  

作　　者：Ruifeng Yin Liejin Zhou Huili Liu Hui Mao Xin Lue Xiaoxia Wang 

机构地区：[1]College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhejiang 321004, China [2]Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China

出　　处：《Chinese Journal of Chemistry》2013年第1期143-148,共6页中国化学（英文版）

基　　金：Acknowledgement This work was financially supported by National Natural Science Foundation of China （No. 20802070） and the research foundation from Key Laboratory of Synthetic Organic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry （CAS）. We thank Professor Ran Hong at SIOC for helpful discus- sions.

摘　　要：3-Aryl-l,2,4-benzotriazines were conveniently prepared in moderate to good yields from 1,1-bis（benzotriazol-1- yl）methylarenes with allylsamarium bromide/hexamethylphosphramide （allylSmBr/HMPA）. Preliminary results in- dicate that HMPA may enhance the reducing ability as well as prohibit the nucleophicility of allylSmBr, thus mak- ing allylSmBr/HMPA as a promising single-electron transfer （SET） reagent.3-Aryl-l,2,4-benzotriazines were conveniently prepared in moderate to good yields from 1,1-bis（benzotriazol-1- yl）methylarenes with allylsamarium bromide/hexamethylphosphramide （allylSmBr/HMPA）. Preliminary results in- dicate that HMPA may enhance the reducing ability as well as prohibit the nucleophicility of allylSmBr, thus mak- ing allylSmBr/HMPA as a promising single-electron transfer （SET） reagent.

关 键 词：benzotriazines SAMARIUM allyl bromide hexamethylphosphramide （HMPA） reduction 

分 类 号：O624.5[理学—有机化学] TQ655[理学—化学]