最近,水性胶束介质中的光催化为激活强碳卤键开辟了广阔的途径。然而,到目前为止,它主要探索了强烈的还原条件,将可用的化学空间限制为自由基或阴离子反应性。在这里,我们展示了一种可控的光催化策略,该策略通过自由基或阳离子途径引导氯化苯甲酰胺的反应,从而实现化学发散的 C-H 芳基化或N-脱烷基化。该催化系统在温和的条件下运行,亚甲基蓝作为光催化剂,蓝色 LED 作为光源。介绍了决定底物反应性、选择性和初步机理研究的因素。
作者:Robin B. Bedford、Jens U. Engelhart、Mairi F. Haddow、Charlotte J. Mitchell、Ruth L. Webster
DOI:10.1039/c0dt00385a
日期:——
The solvent-free, palladium-catalysed reaction of anilides with CuCl2 in the presence or absence of copper acetate yields ortho-chlorinated anilides in good to excellent yields, even on a large scale (100 mmol). By contrast, the equivalent reactions with copper bromide, either solvent free or in 1,2-dichloroethane, in the presence or absence of palladium, under air or inert conditions, gave the products
Cp*Co(III)-Catalyzed Coupling of Benzamides with α,β-Unsaturated Carbonyl Compounds: Preparation of Aliphatic Ketones and Azepinones
作者:Paula G. Chirila、Joshua Adams、Amir Dirjal、Alex Hamilton、Christopher J. Whiteoak
DOI:10.1002/chem.201705785
日期:2018.3.7
substrates with α,β‐unsaturated ketones has been optimized, providing a facile route towards aliphatic ketone products. When employing α,β‐unsaturated aldehydes as coupling partners, under the optimized protocol, a cascade reaction forming azepinones has also been developed. Finally, DFT studies have demonstrated how stabilization of a metallo‐enol intermediate when employing α,β‐unsaturated ketones is
已对具有α,β-不饱和酮的苯甲酰胺底物的Cp * Co III催化的CH-H官能化进行了优化,从而提供了一条通往脂肪族酮产品的简便途径。当使用α,β-不饱和醛作为偶联伙伴时,在优化方案下,还形成了形成a庚酮的级联反应。最后,DFT研究表明,当使用α,β-不饱和酮时,金属烯醇中间体的稳定化是导致观察到的脂肪族酮产物而不是使用α,β-不饱和酯作为偶联伙伴的烯烃产物的驱动力。
COMPOUNDS FOR MODULATING ADENOSINE A2B RECEPTOR AND ADENOSINE A2A RECEPTOR
申请人:Corvus Pharmaceuticals, Inc.
公开号:EP3616753A1
公开(公告)日:2020-03-04
Disclosed herein, inter alia, are compounds of formula (I) and their use in methods for modulating Adenosine Receptors.
with 1,2‐diphenyldiselane by robust ruthenium catalyst were achieved with ample scope under mild reaction conditions. This general approach offered a straightforward access to various functional group substituted diarylselenide containing compounds. The plausible mechanism was proposed after the detailed mechanistic studies.
Novel [1,2,4]Triazolo[4,3-a]Quinoxaline Derivative, Method For Preparing Same, And Pharmaceutical Composition For Preventing Or Treating BET Protein-Related Diseases, Containing Same As Active Ingredient
申请人:Dong Wha Pharm. Co., Ltd.
公开号:US20200039984A1
公开(公告)日:2020-02-06
Provided are a novel [1,2,4]triazolo[4,3-a]quinoxaline derivative, a method for preparing the same, and a pharmaceutical composition for preventing or treating bromodomain extra-terminal (BET) protein-related diseases including cancer and autoimmune diseases, containing the same as an active ingredient.