Listar Química molecular e de materiais (QUIMOLMAT) por data de publicación
Mostrando ítems 21-40 de 104
-
Sequential In-catalyzed intramolecular hydroarylation and Pd-catalyzed cross-coupling reactions using bromopropargyl aryl ethers and amines
(Royal Society of Chemistry, 2017)[Abstract] A sequential one-pot indium-catalyzed intramolecular hydroarylation (IMHA) of bromopropargyl aryl ethers and amines, and palladium-catalyzed cross-coupling reaction using triorganoindium reagents (R3In) has been ... -
Bistratamides M and N, Oxazole-Thiazole Containing Cyclic Hexapeptides Isolated from Lissoclinum bistratum Interaction of Zinc (II) with Bistratamide K
(Multidisciplinary Dixital Publishing Institute, 2017-07-01)[Abstract] Two novel oxazole-thiazole containing cyclic hexapeptides, bistratamides M (1) and N (2) have been isolated from the marine ascidian Lissoclinum bistratum (L. bistratum) collected in Raja Ampat (Papua Bar, ... -
Synthesis of bench-stable solid triorganoindium reagents and reactivity in palladium-catalyzed cross-coupling reactions
(Royal Society of Chemistry, 2018-02-11)[Abstract] Bench-stable solid triorganoindium compounds have been prepared by coordination with 4-(dimethylamino)pyridine (DMAP). The solid R3In(DMAP) complexes are obtained from the corresponding solution of R3In in ... -
The Chelate-To-Bridging Shift of Phosphane Dipalladacycles: Convenient Synthesis of Double A-Frame Tetranuclear Complexes
(Royal Society of Chemistry (Gran Bretaña), 2018-02-19)[Abstract] Palladacycles of the type [Pd2(Ph2PCH2PPh2-P,P)2(C,N:C,N)] (C,N:C,N = bis(N-2,3,4-trimethoxybenzylidene)-4,4′-sulfonyldianiline or -4,4′-oxydianiline) can undergo a spontaneous slow chelate-to-bridging diphosphane ... -
AHL-lactonase Expression in Three Marine Emerging Pathogenic Vibrio spp. Reduces Virulence and Mortality in Brine Shrimp (Artemia salina) and Manila Clam (Venerupis philippinarum)
(PLOS, 2018-04-17)[Abstract] Bacterial infectious diseases produced by Vibrio are the main cause of economic losses in aquaculture. During recent years it has been shown that the expression of virulence genes in some Vibrio species is ... -
Indium(III)-Catalyzed Synthesis of Benzo[b]furans by Intramolecular Hydroalkoxylation of ortho-Alkynylphenols: Scope and Mechanistic Insights
(American Chemical Society (ACS), 2018-06-12)[Abstract] Indium(III) halides catalyze the hydroalkoxylation reaction of ortho-alkynylphenols to afford benzo[b]furans in good yields. The reaction proceeds with 5-endo-dig regioselectivity with a variety of phenols ... -
Diimidazolium Halobismuthates [Dim]2[Bi2X10] (X = Cl–, Br–, or I–): A New Class of Thermochromic and Photoluminescent Materials
(American Chemical Society (ACS), 2018-06-12)[Abstract] We present a novel family of polyhalide salts of Bi(III) with the general formula [Dim]2[Bi2X10], where Dim2+ is the diimidazolium cation (C9H14N4)2+ and X is Cl–, Br–, or I–. Single-phase materials are easily ... -
Synthesis of Fused Chromenes by the Indium(III)-Catalyzed Cascade Hydroarylation/Cycloisomerization Reactions of Polyyne-Type Aryl Propargyl Ethers
(Royal Society of Chemistry (Gran Bretaña), 2018-06-15)[Abstract] Fused 2H-chromenes are prepared by the cascade hydroarylation/cycloisomerization reactions of polyyne-type aryl propargyl ethers using indium(III) catalysis. The transformation proceeds with 6-endo-dig ... -
Triorganoindium reagents in Rh-catalyzed C–H activation/C–C cross-coupling reactions of 2-arylpyridines
(MDPI, 2018-06-29)[Abstract] The activation of C–H bonds through catalytic reactions using transition metals is an important challenge in organic chemistry in which the intermediates are related to those produced in the classical cross-coupling ... -
Cucurbit[8]uril (CB[8])-Based Supramolecular Switches
(Wiley, 2018-07-06)[Abstract] The use of cucurbit[8]uril as a molecular host has emerged in the chemical literature as a reliable strategy for the creation of dynamic chemical systems, owing to its ability to form homo- and heteroternary ... -
Indium(III) as π-acid Catalyst for the Electrophilic Activation of Carbon–Carbon Unsaturated Systems
(Royal Society of Chemistry (Gran Bretaña), 2018-07-25)[Abstract] This review focuses on the utilization of indium(III) as π-acid for the activation of C–C unsaturated bonds in organic synthesis. In addition to its well-known σ-coordination with carbonyl derivatives, indium(III) ... -
The Siderophore Piscibactin Is a Relevant Virulence Factor for Vibrio anguillarum Favored at Low Temperatures
(Frontiers, 2018-08-02)[Abstract] Vibrio anguillarum causes vibriosis, a hemorrhagic septicaemia that affects many cultured marine fish species worldwide. Two catechol siderophores, vanchrobactin and anguibactin, were previously identified in ... -
RuII(p-cymene) Compounds as Effective and Selective Anticancer Candidates with No Toxicity in Vivo
(American Chemical Society (ACS), 2018-10-19)[Abstract] Ruthenium(II) complexes are currently considered a viable alternative to the widely used platinum complexes as efficient anticancer agents. We herein present the synthesis and characterization of half-sandwich ... -
Thinking Outside the Blue Box: Induced Fit within a Unique Self-Assembled Polycationic Cyclophane
(ACS, 2019-02-07)[Abstract] We present herein the development of a new polycationic molecular receptor, inspired by the ubiquitous cyclobis(paraquat-p-phenylene)cyclophane (“blue box”). Our analogue, the “white box”, has been easily ... -
Subcellular duplex DNA and G‐quadruplex interaction profiling of a hexagonal PtII metallacycle
(Wiley, 2019-04-19)[Abstract] Metal‐driven self‐assembly afforded a multitude of fascinating supramolecular coordination complexes (SCCs) with applications as catalysts, host–guest, and stimuli‐responsive systems. However, the interest in ... -
Preparation of Functionalized Magnetic Nanoparticles Conjugated with Feroxamine and Their Evaluation for Pathogen Detection
(Royal Society of Chemistry, 2019-05-01)[Abstract] This work reports the preparation of a conjugate between amino-functionalized silica magnetite and the siderophore feroxamine. The morphology and properties of the conjugate and intermediate magnetic nanoparticles ... -
A Bio-inspired Hypoxia Sensor using HIF1a-Oxygen-Dependent Degradation Domain
(Nature, 2019-05-08)[Abstract] Functional imaging has become an important tool in oncology because it not only provides information about the size and localization of the tumour, but also about the pathophysiological features of the tumoural ... -
Anti-Inflammatory Effects of 5α,8α-Epidioxycholest-6-en-3β-ol, a Steroidal Endoperoxide Isolated from Aplysia depilans, Based on Bioguided Fractionation and NMR Analysis
(MDPI, 2019-06-03)[Abstract:] Sea hares of "Aplysia" genus are recognized as a source of a diverse range of metabolites. 5α,8α-Endoperoxides belong to a group of oxidized sterols commonly found in marine organisms and display several ... -
Synthesis of D–A–A and D–A–D Pyrimidine π-Systems Using Triorganoindium Reagents: Optical, Vibrational, and Electrochemical Studies
(American Chemical Society (ACS), 2019-06-26)[Abstract] A series of donor–acceptor–acceptor (D–A–A) and donor–acceptor–donor (D–A–D) systems based on a pyrimidine π-spacer with various substituents at the C-2 position has been successfully prepared. The synthesis ... -
Conjugation of different immunogenic enterococcal vaccine target antigens leads to extended strain coverage
(Oxford University Press, 2019-07-09)[Abstract] Enterococci have emerged as important nosocomial pathogens due to their resistance to the most commonly used antibiotics. Alternative treatments or prevention options are aimed at polysaccharides and surface-related ...