Phenazinium Salt-Catalyzed Aerobic Oxidative Amidation of Aromatic Aldehydes
作者:Dasheng Leow
DOI:10.1021/ol5029354
日期:2014.11.7
Amides are prevalent in organic synthesis. Developing an efficientsynthesis that avoids expensive oxidants and heating is highly desirable. Here the oxidativeamidation of aromaticaldehydes is reported using an inexpensive metal-free visible light photocatalyst, phenazine ethosulfate, at low catalytic loading (1–2 mol %). The reaction proceeds at ambient temperature and uses air as the sole oxidant
SEM, TEM, energy‐dispersive X‐ray spectroscopy, and vibrating‐sample magnetometer techniques. Fe3O4/PDA/CdS was found to be a highly active photocatalyst for the amidation of aromatic aldehydes by using air as a clean oxidant under mild conditions. The photocatalyst can be recovered by magnetic separation and successfully reused for five cycles without considerable loss of its catalytic activity.
磁性CdS量子点(Fe 3 O 4 /聚多巴胺(PDA)/ CdS)通过廉价的起始原料通过便捷的方法合成。通过FTIR光谱,XRD,SEM,TEM,能量色散X射线光谱和振动样品磁力计技术对制得的催化剂进行表征。通过在温和条件下使用空气作为清洁氧化剂,发现Fe 3 O 4 / PDA / CdS是一种高活性的光催化剂,可用于芳族醛的酰胺化。可以通过磁分离回收光催化剂并成功地重复使用五个循环,而不会显着降低其催化活性。
[EN] NEW SUBSTITUTED CYANOINDOLINE DERIVATIVES AS NIK INHIBITORS<br/>[FR] NOUVEAUX DÉRIVÉS DE CYANOINDOLINE UTILISÉS COMME INHIBITEURS DE NIK
申请人:JANSSEN PHARMACEUTICA NV
公开号:WO2017125530A1
公开(公告)日:2017-07-27
The present invention relates to pharmaceutical agents of formula (I) useful for therapy and/or prophylaxis in a mammal, and in particular to inhibitors of NF- KB-inducing kinase (NIK - also known as MAP3K14) useful for treating diseases such as cancer, inflammatory disorders, metabolic disorders and autoimmune disorders. The invention is also directed to pharmaceutical compositions comprising such compounds, and to the use of such compounds or pharmaceutical compositions for the prevention or treatment of diseases such as cancer, inflammatory disorders, metabolic disorders including obesity and diabetes, and autoimmune disorders.
One‐Pot Tandem Photoredox and Cross‐Coupling Catalysis with a Single Palladium Carbodicarbene Complex
作者:Yu‐Cheng Hsu、Vincent C.‐C. Wang、Ka‐Chun Au‐Yeung、Chung‐Yu Tsai、Chun‐Chi Chang、Bo‐Chao Lin、Yi‐Tsu Chan、Chao‐Ping Hsu、Glenn P. A. Yap、Titel Jurca、Tiow‐Gan Ong
DOI:10.1002/anie.201800951
日期:2018.4.16
transition‐metal‐catalyzed coupling (2 e− process) and photoredox catalysis (1 e− process) has emerged as a powerful approach to catalyze difficult cross‐coupling reactions under mild reaction conditions. Reported is a palladium carbodicarbene (CDC) complex that mediates both a Suzuki–Miyaura coupling and photoredox catalysis for C−N bond formation upon visible‐light irradiation. These two catalytic pathways
Metal-Free One-Pot Oxidative Amination of Aldehydes to Amides
作者:Kekeli Ekoue-Kovi、Christian Wolf
DOI:10.1021/ol7014626
日期:2007.8.1
Metal-free oxidativeamination of aromatic aldehydes in the presence of TBHP provides convenient access to amides in 85-99% under mild reaction conditions within 5 h. This method avoids free carboxylic acid intermediates and integrates aldehyde oxidation and amide bond formation, which are usually accomplished separately, into a single operation. Proline-derived amides can be prepared in excellent