Giorgio Pelosi

ORCID: 0000-0002-7946-0602
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About
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Metal complexes synthesis and properties
  • Crystal structures of chemical compounds
  • Crystallography and molecular interactions
  • Asymmetric Synthesis and Catalysis
  • Magnetism in coordination complexes
  • Organometallic Compounds Synthesis and Characterization
  • Oxidative Organic Chemistry Reactions
  • Synthetic Organic Chemistry Methods
  • Synthesis and Characterization of Heterocyclic Compounds
  • Metal-Catalyzed Oxygenation Mechanisms
  • Synthesis and biological activity
  • Radical Photochemical Reactions
  • Catalytic C–H Functionalization Methods
  • Synthesis and Catalytic Reactions
  • Mycotoxins in Agriculture and Food
  • Metal-Organic Frameworks: Synthesis and Applications
  • Carbohydrate Chemistry and Synthesis
  • Liver Disease Diagnosis and Treatment
  • Lanthanide and Transition Metal Complexes
  • Chemical Synthesis and Analysis
  • Liver Disease and Transplantation
  • Sulfur-Based Synthesis Techniques
  • Fungal Plant Pathogen Control

University of Parma
2015-2025

Consorzio Interuniversitario Reattività Chimica e Catalisi
2014-2022

In-Q-Tel
2013-2016

Istituto di Chimica Biomolecolare
2003-2011

Ospedale di Parma
2007-2009

Policlinico Universitario di Catania
2007-2009

Johannes Gutenberg University Mainz
2008

European Union
2007

Université Paris-Saclay
2003-2005

Laboratoire de Chimie
2003

New α-ketoglutaric acid thiosemicarbazone (H3ct) derivatives and their copper complexes were synthesized characterized by analytical spectroscopic (IR NMR) methods. For two of the ligands, Me-H3ct Allyl-H3ct, for a complex, [Cu(Me-Hct)(OH2)]n·2nH2O, X-ray structures also determined. In latter atom shows 4 + 1 pyramidal coordination, water oxygen appears in apical position, three basal positions are occupied SNO tridentate ligand fourth carboxylic an adjacent molecule that gives rise to...

10.1021/ic049883b article EN Inorganic Chemistry 2004-10-05

Thiosemicarbazones display a wide antimicrobial activity by targeting bacteria, fungi, and viruses. Here, we report our studies on the antiviral of two thiosemicarbazone metal complexes, [bis(citronellalthiosemicarbazonato)nickel(II)] [aqua(pyridoxalthiosemicarbazonato)copper(II)] chloride monohydrate, against retroviruses HIV-1 HTLV-1/-2. Both compounds exhibit properties HIV but not HTLVs . In particular, copper complex shows most potent anti-HIV acting at post-entry steps viral cycle.

10.1021/jm1007616 article EN Journal of Medicinal Chemistry 2010-12-01

Vinylogy: Advances in asymmetric catalysis using the bifunctional cinchona alkaloid/thioureas enabled an umpolung of classical Cβ reactivity 3-alkylidene oxindoles, thus allowing development first and sole example a direct, organocatalytic vinylogous Michael (AVM) reaction with nitroolefins. Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please...

10.1002/anie.201202027 article EN Angewandte Chemie International Edition 2012-05-08

Modulation of the complex reactivity cyclohexenylidene malononitriles using diverse β-aryl-substituted enals and proper organocatalytic modalities resulted in divergent asymmetric reaction patterns to furnish angularly fused or bridged carbabicyclic frameworks. In particular, use remotely enolizable dicyanodienes 1, under one-pot sequential amine/NHC catalysis, led [3 + 2] cycloaddition afford ε,δ-bonded spiro[4.5]decanone structures 5. Alternatively, modifying standard amine catalysis by...

10.1021/ja5054576 article EN Journal of the American Chemical Society 2014-07-17

Here, we report a general approach to the synthesis of difluoroalkyl bicycloalkanes (CF2 -BCAs), as structural surrogates aryl ketones and ethers. The chemistry is driven by dihydrobenzoacridine photocatalyst, that engages in catalytic electron-donor acceptor (EDA) complex, or directly reduces fluorinated substrate. These two convergent manifolds lead generation R-CF2 radical, reacts with [1.1.1]- [3.1.1.]-propellane. method extremely general, extendable complex bioactive molecules (30...

10.1002/anie.202303585 article EN cc-by-nc-nd Angewandte Chemie International Edition 2023-06-01

Aminocatalysis is a well-established tool that enables the production of enantioenriched compounds under mild conditions. Its versatility underscored by its seamless integration with various synthetic approaches. While combination aminocatalysis metal catalysis, photochemistry, and stoichiometric oxidants has been extensively explored, synergy electrochemical activation remains largely unexplored. Herein, we present successful merger electrochemistry to perform SOMO-type transformations,...

10.1002/anie.202401361 article EN cc-by Angewandte Chemie International Edition 2024-04-16

To accelerate the discovery of novel metalloantibiotics we applied combinatorial synthesis to preparation 420 manganese tricarbonyl complexes.

10.1039/d3sc05326a article EN cc-by-nc Chemical Science 2024-01-01

The increasing popularity of four-member rings in drug discovery has prompted the synthetic chemistry community to advance and reinvent old strategies craft these structures. Recently, strain-release concept been used build complex architectures. However, although there are many for accessing small carbocyclic derivatives, synthesis azetidines remains underdeveloped. Here we report a photocatalytic radical strategy densely functionalized from azabicyclo[1.1.0]butanes. protocol operates with...

10.1038/s41929-024-01206-4 article EN cc-by-nc-nd Nature Catalysis 2024-08-14

Two new 5-formyluracil thiosemicarbazone (H3ut) derivatives, Me-H3ut (1) and Me2-H3ut (2), were synthesized by reacting thiosemicarbazides, mono- dimethylated on the aminic nitrogen, with subsequently characterized. These ligands, treated copper chloride nitrate, afforded three complexes: [Cu(Me-H3ut)Cl2]·H2O (3), [Cu(Me2-H3ut)Cl2]·H2O (4), [Cu(Me-H3ut)(NO3)(OH2)2]NO3 (5). The crystal structures of these complexes have been determined single-crystal X-ray diffraction. In 3 4, a similar...

10.1021/ic026131d article EN Inorganic Chemistry 2003-02-15

In this paper the syntheses of new pyridoxal thiosemicarbazone copper(II) and cobalt(III) complexes with nitroprusside as a counterion tests on antileukemic activity three these toward human cell lines U937 CEM are reported. Nitroprusside was chosen in order to test if its ability release NO can increase biological already shown by complexes. The compounds were characterized spectroscopic magnetic methods single-crystal X-ray diffraction.

10.1021/jm049529n article EN Journal of Medicinal Chemistry 2005-02-12

Pt(IV) complexes are usually prepared by oxidation of the corresponding Pt(II) counterparts, typically using hydrogen peroxide or chlorine. A different way to synthesize asymmetrical compounds is oxidative chlorination counterparts with N-chlorosuccinimide. The reaction between cisplatin cis-[PtCl2(NH3)2], carboplatin, cis-[PtCl2(dach)] and cis-[Pt(cbdc)(dach)] (cbdc = cyclobutane-1,1′-dicarboxylato; dach cyclohexane-1R,2R-diamine) N-chlorosuccinimide in ethane-1,2-diol was optimized produce...

10.1021/ic501446b article EN Inorganic Chemistry 2014-08-14

Twelve naphthochromenone photocatalysts (PCs) were synthesized on gram scale. They absorb across the UV/Vis range and feature an extremely wide redox window (up to 3.22 eV) that is accessible using simple visible light irradiation sources (CFL or LED). Their excited-state potentials, PC*/PC.- 1.65 V) PC.+ /PC* -1.77 V vs. SCE), are such these novel PCs can engage in both oxidative reductive quenching mechanisms with strong thermodynamic requirements. The potential of bimodal was benchmarked...

10.1002/anie.201912455 article EN Angewandte Chemie International Edition 2019-10-29

A scalable visible-light [2 + 2]-heterocycloaddition process allows the dearomatisation of indoles to complex biorelevant polycycles.

10.1039/d0sc01569e article EN cc-by-nc Chemical Science 2020-01-01

Copper complexes have shown promising anticancer properties, but they are often poorly soluble in aqueous solutions, thus limiting their possible medical developments and applications. We recently isolated some copper(II) with salicylaldehyde thiosemicarbazone ligands exhibiting remarkable nanomolar cytotoxic activity, vivo tests evidenced several difficulties related to poor solubility. To overcome these limitations increase solubility solution, herein we report the synthetic strategy that...

10.1016/j.ejmech.2024.116697 article EN cc-by-nc-nd European Journal of Medicinal Chemistry 2024-07-18
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