Alkyl Carbazates for Electrochemical Deoxygenative Functionalization of Heteroarenes
作者:Yongyuan Gao、Zhengguang Wu、Lei Yu、Yi Wang、Yi Pan
DOI:10.1002/anie.202001571
日期:2020.6.26
work describes carbazate as a new type of electrochemically activated alkylatingagent derived from ubiquitous alcohols for direct functionalization of heteroarenes under mild electrolytic conditions. The simple undivided cell at low oxidative potentials with carbon/platinum electrode set‐ups offers excellent substrate tolerance, affording a variety of primary, secondary and tertiary alkyl‐decorated
New ligands for copper-catalyzed C–N coupling reactions with aryl halides
作者:Dong Chen、Kai Yang、Hua Xiang、Sheng Jiang
DOI:10.1016/j.tetlet.2012.10.083
日期:2012.12
2-Carbomethoxy-3-hydroxyquinoxaline-di-N-oxide was identified as an efficient novel ligand for the copper-catalyzedcouplingreactions of aryl iodides, bromides, and chlorides with aliphatic amines and N-containing heterocycles under mild conditions. The catalytic system showed great functional-group tolerance and excellent chemoselectivity.
Organic-Dye-Catalyzed Visible-Light-Mediated Regioselective C-3 Alkoxycarbonylation of Imidazopyridines by Carbazates
作者:Durgesh Sarothiya、Rajesh T. Bhawale、Umesh A. Kshirsagar
DOI:10.1021/acs.joc.2c01742
日期:2022.11.4
bengal as a photoredox catalyst at roomtemperature has been developed. Biologically important alkoxycarboxylated imidazo[1,2-a]pyridines at the C-3 position as well as coumarins and quinoxalin-2(1H)-ones have been prepared. The present approach has the advantage of having a user- and eco-friendly catalyst, a carbonyl source, as well as extremely mild conditions for direct and regioselective C–H alkoxycarbonylation
已开发出一种温和且环保的可见光介导的咪唑并[1,2- a ]吡啶杂环化合物的区域选择性 C-H 烷氧基羰基化反应,该反应在室温下使用玫瑰红作为光氧化还原催化剂。已经制备了 C-3 位具有重要生物学意义的烷氧基羧基化咪唑并 [1,2 - a ] 吡啶以及香豆素和喹喔啉-2(1 H )-酮。本方法的优点是具有用户友好和生态友好的催化剂、羰基源,以及由可见光作为绿色能源介导的直接和区域选择性 C-H 烷氧基羰基化的极其温和的条件。
[EN] N-CONTAINING HETEROAROMATIC COMPOUNDS AS MODULATORS OF PPARS AND METHODS OF TREATING METABOLIC DISORDERS<br/>[FR] COMPOSES HETEROAROMATIQUES CONTENANT N EN TANT QUE MODULATEURS DE PPARS ET METHODES POUR TRAITER DES TROUBLES DU METABOLISME