Palladium–copper-catalyzed desulfitative amination of benzo[d]oxazole C–H bond
摘要:
An efficient palladium-copper-catalyzed direct C-H amination of substituted benzoxazoles with various sulfamoyl chlorides as nitrogen group sources has been developed. The system does not need a strong base and tolerates a series of functional groups, such as chloro, methyl, and nitro groups, providing the amination products in moderate to excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.
Palladium-Catalyzed Coupling of Polyfluorinated Arenes with Heteroarenes via C–F/C–H Activation
摘要:
The first palladium-catalyzed coupling of 2-pyrldyl-polyfluoroarenes and benzoxazole, thiazole, benzothiazole, benzoimidazole, oxazole or oxadiazole via a concurrent C-F/C-H activation is described. Initial mechanistic studies showed that C-F activation of perfluoroarene is likely the rate-limiting step of the catalytic cycle. This protocol provides a useful and operationally simple process to functionalized polyfluoroarenes.
The palladium-catalyzed tandem decarboxylation, carbon–carbon triple bond oxidation and decarbonylative arylation of the benzoxazole C–H bond
作者:Dongfang Liu、Bin Liu、Jiang Cheng
DOI:10.1039/c3ra41185k
日期:——
A palladium-catalyzed arylation of benzoxazole has been developed. This protocol involves the tandem decarboxylation and oxidation of a carbonâcarbon triple bond followed by decarbonylative arylation of the benzoxazole CâH bond.
Unexpected TFA-catalyzed tandem reaction of benzo[d]oxazoles with 2-oxo-2-arylacetic acids: synthesis of 3-aryl-2H-benzo[b][1,4]oxazin-2-ones and cephalandole A
TFA-catalyzed reaction of benzo[d]oxazoles with 2-oxo-2-arylacetic acids: synthesis of 3-aryl-2H-benzo[b][1,4]oxazin-2-ones and the natural product cephalandole A.
ANALOGS OF FEXARAMINE AND METHODS OF MAKING AND USING
申请人:Salk Institute for Biological Studies
公开号:US20170066724A1
公开(公告)日:2017-03-09
Novel compounds having a formula
embodiments of a method of making the same, and of a composition comprising them are disclosed herein. Also disclosed are embodiments of a method of treating or preventing a metabolic disorder in a subject, comprising administering to a subject (e.g., via the gastrointestinal tract) a therapeutically effective amount of one or more of the disclosed compounds, thereby activating FXR receptors in the intestines, and treating or preventing a metabolic disorder in the subject. Additionally disclosed are embodiments of a method of treating or preventing inflammation in an intestinal region of a subject, comprising administering to the subject (e.g., via the gastrointestinal tract) a therapeutically effective amount of one or more of the disclosed compounds, thereby activating FXR receptors in the intestines, and thereby treating or preventing inflammation in the intestinal region of the subject.
[EN] ANALOGS OF FEXARAMINE AND METHODS OF MAKING AND USING<br/>[FR] ANALOGUES DE LA FEXARAMINE ET LEUR PROCÉDÉS DE PRÉPARATION ET D'UTILISATION
申请人:SALK INST FOR BIOLOGICAL STUDI
公开号:WO2017078927A1
公开(公告)日:2017-05-11
Novel compounds having a formula (I), embodiments of a method of making the same, and of a composition comprising them are disclosed herein. Also disclosed are embodiments of a method of treating or preventing a metabolic disorder in a subject, comprising administering to a subject (e.g., via the gastrointestinal tract) a therapeutically effective amount of one or more of the disclosed compounds, thereby activating FXR receptors in the intestines, and treating or preventing a metabolic disorder in the subject. Additionally disclosed are embodiments of a method of treating or preventing inflammation in an intestinal region of a subject, comprising administering to the subject (e.g., via the gastrointestinal tract) a therapeutically effective amount of one or more of the disclosed compounds, thereby activating FXR receptors in the intestines, and thereby treating or preventing inflammation in the intestinal region of the subject.
Palladium-Catalyzed Coupling of Polyfluorinated Arenes with Heteroarenes via C–F/C–H Activation
作者:Daohong Yu、Long Lu、Qilong Shen
DOI:10.1021/ol303567t
日期:2013.2.15
The first palladium-catalyzed coupling of 2-pyrldyl-polyfluoroarenes and benzoxazole, thiazole, benzothiazole, benzoimidazole, oxazole or oxadiazole via a concurrent C-F/C-H activation is described. Initial mechanistic studies showed that C-F activation of perfluoroarene is likely the rate-limiting step of the catalytic cycle. This protocol provides a useful and operationally simple process to functionalized polyfluoroarenes.