首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Oxidation of BINOLs by Hypervalent Iodine Reagents: Facile Synthesis of Xanthenes and Lactones
Authors:Dr Huaiyuan Zhang  Prof Dr Thomas Wirth
Institution:1. School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, CF10 3AT UK

Lanzhou Petrochemical University of Vocational Technology, Lanzhou, 730060 P. R. China;2. School of Chemistry, Cardiff University, Park Place, Main Building, Cardiff, CF10 3AT UK

Abstract:Xanthene derivatives have broad applications in medicines, fluorescent probes, dyes, food additives, etc. Therefore, much attention was focused on developing the synthetic methods to prepare these compounds. Binaphthyl-based xanthene derivatives were prepared through the oxidation of BINOLs promoted by the hypervalent iodine reagent iodosylbenzene (PhIO). Nine-membered lactones were obtained through a similar oxidative reaction when iodoxybenzene (PhIO2) was used. Additionally, one-pot reactions of BINOLs, PhIO and nucleophiles such as alcohols and amines were also investigated to provide alkoxylated products and amides in good to excellent yields.
Keywords:BINOL  hypervalent iodine reagents  lactones  oxidation  xanthenes
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号