A Catalytic Approach to Quinoline Fused Lactones and Lactams from Glycine Derivatives
作者:Congde Huo、Yong Yuan、Fengjuan Chen、Yajun Wang
DOI:10.1002/adsc.201500513
日期:2015.11.16
A dual catalyst system [copper(II) chloride-sulfuric acid, (CuCl2-H2SO4)]-promoted aerobic oxidative reaction of glycine derivatives with 2,3-dihydrofurans or 2,3-dihydropyrroles has been explored, affording an efficient synthesis of high value quinoline fused lactones and lactams. The application of this new methodology to the synthesis of a bioactive C ring extension analogue of luotonin A has been
探索了一种双催化剂体系[氯化铜(II)硫酸,(CuCl 2 -H 2 SO 4)]-促进甘氨酸衍生物与2,3-二氢呋喃或2,3-二氢吡咯的好氧氧化反应,得到了有效合成高价值的喹啉融合内酯和内酰胺。以简洁的三步顺序完成了这种新方法在合成荧光素A的生物活性C环延伸类似物方面的应用。
Copper-Catalyzed Aerobic Oxidative Dehydrogenative Formal [2 + 3] Cyclization of Glycine Esters with α-Angelicalactone: Approach To Construct Polysubstituted Pyrrolidones
作者:Congde Huo、Yong Yuan、Fengjuan Chen、Jing Tang、Yajun Wang
DOI:10.1021/acs.orglett.5b01985
日期:2015.9.4
A novel and efficient copper-catalyzedaerobic oxidative dehydrogenative formal [2 + 3] cyclization of glycine derivatives with α-angelicalactone is described. A series of complex pyrrolidones were produced under mild and simple reaction conditions.
A visible-light-induced aerobic oxidative [2+3] cycloaddition reaction between glycine derivatives and thiiranes has been disclosed, which provides an efficient and atom-economical strategy for the rapid synthesis of thiazolidine-2-carboxylic acid derivatives and the post-modification of glycine-derived dipeptides under mild conditions with good yield and high diastereoselectivities. A preliminary
Iron Catalyzed Dual-Oxidative Dehydrogenative (DOD) Tandem Annulation of Glycine Derivatives with Tetrahydrofurans
作者:Congde Huo、Fengjuan Chen、Yong Yuan、Haisheng Xie、Yajun Wang
DOI:10.1021/acs.orglett.5b02504
日期:2015.10.16
A novel iron-catalyzed dual-oxidative dehydrogenative (DOD) tandem annulation of glycine derivatives with tetrahydrofurans (THFs) for the synthesis of high value quinoline fused lactones has been developed. The reactions were performed under mild reaction conditions. And the use of cheap substrates (glycine derivatives and THF) and an even cheaper simple inorganic iron salt as the catalyst makes this protocol very attractive for potential synthetic applications.