نتایج جستجو برای: bridged dihydropyrimidinone
تعداد نتایج: 7345 فیلتر نتایج به سال:
A set of fluorophenyl-substituted adt-bridged Fe2S2 active site models of Fe-only hydrogenase, [(micro-SCH2)2NR]Fe2(CO)6 (, R=C6F4CF3-p; , R=C6H4CF3-p) and [(micro-SCH2)2NR]Fe2(CO)5(PPh3) (, R=C6F4CF3-p; , R=C6H4CF3-p), have been synthesized and well characterized. Spectroscopic and electrochemical studies demonstrate that the aryl-substituted complexes are stable toward a strong acid HBF4/Et2O...
Background and Objective: A Simple, Green and efficient procedure for the synthesis of 4-aryl-3, 4-dihydropyrimidine-2(1H)-ones/thione (Biginelli reaction) from 1, 3-dicarbonyl compound, substituted aldehydes and urea/thiourea in the presence of Sodium Dodecyl Sulphate (SDS), a novel catalyst has been introduced in this study. Materials and Methods: The structures of these compounds have been c...
Background and Objective: Various biginelli compounds (dihydropyrimidinones) have been synthesized efficiently and in high yields under mild, solvent free and eco-friendly conditions in a one pot reaction of 1, 3-dicarbonyl compounds, aldehydes and urea/thiourea using Sodium Dodecyl Sulphate (SDS) as a novel catalyst under two experimental conditions. Methodology: The obtained products have bee...
Human neutrophil elastase (HNE) is a key protease for matrix degradation. High HNE activity is observed in inflammatory diseases. Accordingly, HNE is a potential target for the treatment of pulmonary diseases such as chronic obstructive pulmonary disease (COPD), acute lung injury (ALI), acute respiratory distress syndrome (ARDS), bronchiectasis (BE), and pulmonary hypertension (PH). HNE inhibit...
Diruthenium( ii , iii ) paddlewheel carboxylates combine the pharmacological properties of dimetallic center with those ascribed to μ-bridged carboxylates, thus leading novel, dual-acting anticancer metallodrugs.
Porphyrin-fluorene conjugates bridged by ethynylene were synthesized through Pd-catalyzed cross-coupling reaction. These molecules showed strong nonlinear absorption when measured using a nanosecond Z-scan method. The largest effective two-photon absorption cross-section was observed for trisporphyrin as 2.7 × 105 GM at 760 nm, which was 10 times larger than that obtained for monoporphyrin. INT...
Rare examples of phenoxido-bridged Fe III –Ln binuclear complexes are synthesized, and their dynamic static magnetic properties rationalized by ab initio calculations.
Mild solvothermal dehydration of 1,1'-ferrocenediboronic acid produces a triply ferrocene-bridged boroxine cyclophane. Its crystal structure reveals a rigid trigonal prism that presents a minimal boroxine-based covalent organic polyhedron (COP).
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید