Visible-light promoted α-alkylation of glycine derivatives with alkyl boronic acids
作者:Jiayuan Wang、Yingpeng Su、Zhengjun Quan、Jun Li、Jie Yang、Yong Yuan、Congde Huo
DOI:10.1039/d0cc07688k
日期:——
A visible-light-mediated aerobic α-alkylation reaction of glycine derivatives with alkyl boronicacids has been established in the presence of a Ru/Cu catalyst system, giving the desired radical coupling products efficiently. The transformation features mild reaction conditions and broad substrate scope, delivering a wide range of complex unnatural α-amino-acid derivatives.
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.
C(sp<sup>3</sup>)–H/C(sp<sup>3</sup>)–H Dehydrogenative Radical Coupling of Glycine Derivatives
作者:Jiayuan Wang、Youwan Ye、Tongzhi Sang、Chenxing Zhou、Xiazhen Bao、Yong Yuan、Congde Huo
DOI:10.1021/acs.orglett.2c02951
日期:2022.10.21
Here we report a general C(sp3)–H/C(sp3)–H dehydrogenative coupling strategy for the preparation of various natural or unnatural amino acids from readily available glycinederivatives and hydrocarbons through a combination of SET and HAT process.
在这里,我们报告了一种通用的 C(sp 3 )–H/C(sp 3 )–H 脱氢偶联策略,用于通过 SET 和 HAT 过程的组合从现成的甘氨酸衍生物和碳氢化合物制备各种天然或非天然氨基酸。
Visible Light-Driven Flexible Synthesis of α-Alkylated Glycine Derivatives Catalyzed by Reusable Covalent Organic Frameworks
Herein, we report a heterogeneous visible light-driven preparation of α-alkylated glycine derivatives. This approach employed a β-ketoenamine-linked covalent organic framework (2D-COF-4) as the heterogeneous photocatalyst and N-hydroxy phthalimide (NHPI) esters as the alkyl radical sources. Numerous glycine derivatives, including dipeptides, were precisely and efficiently alkylated under visible light-driven