A new method upon adopting a solid-phase strategy for synthesis of N-aryl succinimides is described here, using the silica-bound benzoyl chloride (SBBC) as dehydrating agent in reaction with N-arylsuccinamic acids. The main advantage of this method is the recyclability of SBBC.
A porphyrin-based COF promoted photocatalytic dipolar [3+2] cycloaddition reaction for pyrrolo[2,1-a]isoquinoline synthesis is reported. Various substituted pyrrolo[2,1-a]isoquinolines were obtained in moderate to good yields via the photocatalyticoxidative [3+2] cycloaddition reaction between tetrahydroisoquinolines and N-substituted maleimides under aerobic conditions at room temperature.
报道了一种基于卟啉的COF促进吡咯并[2,1- a ]异喹啉合成的光催化偶极[3+2]环加成反应。通过四氢异喹啉与N-取代马来酰亚胺在室温有氧条件下的光催化氧化[3+ 2 ]环加成反应,以中等至良好的收率获得了各种取代的吡咯并[2,1-a]异喹啉。
THERMOSETTING POLYIMIDE RESIN COMPOSITION, CURED PRODUCT, AND ADHESIVE
申请人:Mitsubishi Gas Chemical Company, Inc.
公开号:EP2428535A1
公开(公告)日:2012-03-14
To provide a thermosetting polyimide resin composition that can provide a cured product which generates a small amount of decomposition gas even when exposed to, for example, a high-temperature environment of about 250°C, and which exhibits high heat resistance, high durability, favorable flexibility, and favorable adhesive property; a cured product produced from the thermosetting polyimide resin composition; and an adhesive produced from the thermosetting polyimide resin composition. The thermosetting polyimide resin composition containing (a) a polyimide produced through reaction between a tetracarboxylic acid component containing a tetracarboxylic dianhydride and/or a tetracarboxylic acid, and a diamine; and (b) a maleimide composition containing at least one polymaleimide compound represented by any of formulas (4-1) to (4-3).
[EN] THIAZOLOPYRIDINE DERIVATIVES AS ADENOSINE RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE THIAZOLOPYRIDINE UTILISÉS EN TANT QU'ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE
申请人:MERCK PATENT GMBH
公开号:WO2019025099A1
公开(公告)日:2019-02-07
The invention relates to thiazolopyridine derivatives of the general formula I, and the use of the compounds of the present invention for the treatment and/or prevention of hyperproliferative or infectious diseases and disorders in mammals, especially humans, and pharmaceutical compositions containing such compound.
A new method upon adopting a solid-phase strategy for synthesis of N-aryl succinimides is described here, using the silica-bound benzoyl chloride (SBBC) as dehydrating agent in reaction with N-arylsuccinamic acids. The main advantage of this method is the recyclability of SBBC.
Site-Selective δ-C(sp<sup>3</sup>
)−H Alkylation of Amino Acids and Peptides with Maleimides via a Six-Membered Palladacycle
作者:Bei-Bei Zhan、Ya Li、Jing-Wen Xu、Xing-Liang Nie、Jun Fan、Liang Jin、Bing-Feng Shi
DOI:10.1002/anie.201801445
日期:2018.5.14
report on the site‐selective δ‐C(sp3)−H alkylation of amino acids and peptides with maleimides via a kinetically less favored six‐membered palladacycle in the presence of more accessible γ‐C(sp3)−H bonds. Experimental studies revealed that C−H bond cleavage occurs reversibly and preferentially at γ‐methyl over δ‐methyl C−H bonds while the subsequent alkylation proceeds exclusively at the six‐membered