Cyanuric chloride: decent dehydrating agent for an exclusive and efficient synthesis of kinetically controlled isomaleimides
摘要:
Starting from maleanitic and maleamic acids, a facile general approach to kinetically controlled isomaleimides has been described for the first time using cyanuric chloride as a dehydrating agent with 85-98% yields. The effect of a variety of substituents present on the aromatic ring in amine and maleic anhydride moiety, on these kinetic/thermodynamic dehydration processes of anilic acids has been also described. Under the same set of reaction conditions the phthalanilic acid gave kinetically controlled product, isoplitalimide in 91% yield, while the corresponding succinanilic acid furnished the thermodynamically more stable succinimide in high yield. (c) 2005 Elsevier Ltd. All rights reserved.
Amorphous carbon-silica composites bearing sulfonic acid as solid acid catalysts for the chemoselective protection of aldehydes as 1,1-diacetates and for N-, O- and S-acylations
The synthesis of (<i>Z</i>)-4-oxo-4-(arylamino)but-2-enoic acids derivatives and determination of their inhibition properties against human carbonic anhydrase I and II isoenzymes
作者:Koray Oktay、Leyla Polat Köse、Kıvılcım Şendil、Mehmet Serdar Gültekin、İlhami Gülçin、Claudiu T. Supuran
DOI:10.3109/14756366.2015.1071808
日期:2016.11.1
spectroscopy. Carbonic anhydrase is a metalloenzyme involved in many crucial physiologic processes as it catalyzes a simple but fundamental reaction, the reversible hydration of carbon dioxide to bicarbonate and protons. Significant results were obtained by evaluating the enzyme inhibitory activities of these derivatives against human carbonic anhydrase hCA I and II isoenzymes (hCA I and II). Butenoic
Synthesis of 3-chloro-1-substituted aryl pyrrolidine-2,5-dione derivatives: discovery of potent human carbonic anhydrase inhibitors
作者:Koray Oktay、Leyla Polat Kose、Kıvılcım Şendil、Mehmet Serdar Gültekin、İlhami Gülçın
DOI:10.1007/s00044-017-1865-2
日期:2017.8
spectroscopy. Their biological activities were studied against human carbonic anhydrase I, and II. The 3-chloro-1-aryl pyrrolidine-2,5-diones strongly inhibited the activity of human carbonic anhydrase I and II, with K i values in the low nanomolar range of 23.27–36.83 nmol/L against human carbonic anhydrase I and 10.64–31.86 nmol/L against human carbonic anhydrase II.
Facile esterification of carboxylic acids with organophosphorus reagents
作者:V. Balasubramaniyan、V.G. Bhatia、S.B. Wagh
DOI:10.1016/s0040-4020(01)88552-5
日期:1983.1
A mixture of alkyl phosphate esters (APE) obtained from P4O10 and alkanols taken in 1:6 mole ratio is an excellent esterification reagent for several classes of carboxylicacids. This new reagent offers several advantages compared to conventional reagents.
由P 4 O 10获得的烷基磷酸酯(APE)和以1:6摩尔比获得的链烷醇的混合物是用于几类羧酸的优良酯化试剂。与常规试剂相比,这种新试剂具有多个优点。
Crystal structure, supramolecular assembly exploration by Hirshfeld surface analysis and DFT inspection of the synthesized functionalized crystalline anilide
作者:Muhammad Ashfaq、Muhammad Nawaz Tahir、Georgii Bogdanov、Akbar Ali、Muhammad Ahmed、Gulzar Ahmed、Anees Abbas
DOI:10.1007/s13738-023-02904-9
日期:2023.12
was thoroughly explored by Hirshfeldsurfaceanalysis. The most probable contact for the crystal packing interactions was determined by enrichment ratio analysis. The crystal packing environment was explored by the interaction energy between the molecular pairs. Energyframeworks were computed to understand the topology of the single crystal of the compound NAOB. Voidanalysis was performed to check the