57 results

New spiropyrrolothiazole derivatives bearing an oxazolone moiety as potential antidiabetic agent: Design, synthesis, crystal structure, Hirshfeld surface analysis, ADME and molecular docking studies

In a sustained search for novel and effective antihyperglycemics, a new series of fifteen isomeric oxazolone-fused dispiropyrrolothiazoles resulting from one-pot three component reaction between L-4-thiazolidine carboxylic acid, arylidene-oxazolones and isatin (or acenaphthenequinone) has been ...

Antimicrobial Activity and DFT Studies of a Novel Set of Spiropyrrolidines Tethered with Thiochroman-4-one/Chroman-4-one Scaffolds

A novel series of 14 spiropyrrolidines bearing thiochroman-4-one/chroman-4-one, and oxindole/acenaphthylene-1,2-dione moieties were synthesized and characterized by spectroscopic techniques, as well as by three X-ray diffraction studies, corroborating the stereochemistry. Quantum chemical ...

Synthesis, antidiabetic activity and molecular docking study of rhodanine-substitued spirooxindole pyrrolidine derivatives as novel α-amylase inhibitors

In a sustained search for novel α-amylase inhibitors for the treatment of type 2 diabetes mellitus (T2DM), we report herein the synthesis of a series of nineteen novel rhodanine-fused spiro[pyrrolidine-2,3′-oxindoles]. They were obtained by one-pot three component [3 + 2] cycloaddition of stabilized ...

Impact of a treatment by plasma polymerization on the filtration performances of commercial membranes for the decontamination of solution containing metal ions.

Collected date : from Mar 2020 to Dec 2020
Creators : Sébastien Déon

In this project, a commercial membrane exhibiting low performances of heavy metal removal has been modified by plasma grafting of poly(allylamine). This treatment allows modifying the structural and physicochemical properties of the membrane surface and thus increasing separation performances, while ...

Nitrogen Hydrate Cage Occupancy and Bulk Modulus Inferred from Density Functional Theory-Derived Cell Parameters

Gas clathrate hydrate solid materials, ubiquitous in nature as found either on the ocean floor, permafrost on the Earth, or in extraterrestrial planets and comets, are also technologically relevant, for example, in energy storage or carbon dioxide sequestration. Nitrogen hydrate, in particular, is ...

Diversity-oriented Synthesis of Spiropyrrolo[1, 2-a]isoquinoline Derivatives via Diastereoselective and Regiodivergent Three-component 1,3-Dipolar Cycloaddition Reactions: In vitro and in vivo Evaluation of the Antidiabetic Activity of Rhodanine Analogues

Collected date : from 2018 to 2021

An efficient diastereoselective route is developed to get access to novel spiropyrrolo[1,2-a]isoquinoline-oxindole skeletons by a one-potthree-component [3 + 2] cycloaddition reaction of (Z)-5-arylidene-1,3-thiazolidine-2,4-diones, isatin derivatives, and 1,2,3,4-tetrahydroisoquinoline (THIQ). ...

Control of Structures and Emission Properties of (CuI)n 2-Methyldithiane Coordination Polymers

A structurally unique and strongly luminescent nonporous 3D coordination polymer (CP) [Cu8I8(methyldithiane)4]n, CP3, has been prepared in a quasi-anticipated manner from 2-methyl-1,3-dithiane, L1, and CuI. This CP incorporates an unprecedented Cu8I8 cluster built upon two side-fused open cubanes. ...

A Fused Poly(truncated rhombic dodecahedron)-Containing 3D Coordination Polymer: A Multifunctional Material with Exceptional Properties

The design of new and inexpensive metal-containing functional materials is of great interest. Herein is reported a unique thermochromic near-IR emitting coordination polymer, 3D-[Cu8I8(L1)2]n, CP2, which is formed when ArS(CH2)4SAr (L1, Ar = 4-C6H4OMe) reacts with 2 equiv of CuI in EtCN. In MeCN, ...

Crystal structure of di-[mu]-iodido-bis­[bis(aceto­nitrile-[kappa]N)copper(I)]

The title compound, [Cu2I2(CH3CN)4], exhibits a centrosymmetric Cu2I2 core [Cu...Cu distance = 2.7482 (11) Å], the CuI atoms of which are further coordinated by four mol­ecules of aceto­nitrile. The CuI atom has an overall distorted tetra­hedral coordination environment evidenced by L-Cu-L angles (L ...

Crystal structure of di-[mu]-iodido-bis­[(dimethyl sulfoxide-[kappa]O)(tri­phenyl­phosphane-[kappa]P)copper(I)]

The centrosymmetric dinuclear title compound, [Cu2I2(C2H6OS)2(C18H15P)2], represents the first example of a CuI complex ligated by an O-bound dimethyl sulfoxide ligand. In the crystal, the two tetrahedrally coordinated CuI atoms are bridged by two [mu]2-iodido ligands in an almost symmetrical ...

Crystal structure of the two-dimensional coordination polymer poly[di-μ-bromido-bis­(μ-tetra­hydro­thiophene)­dicopper(I)]

The polymeric title compound, [Cu2Br2(C4H8S)2]n, CP1, represents an example of a two-dimensional coordination polymer resulting from reaction of CuBr with tetra­hydro­thio­phene (THT) in MeCN solution. The two-dimensional layers consist of two different types of rhomboid-shaped dinuclear ...

Pollen analysis - Montlebon (F-25), Sur la Vigne 1 (Morteau A)

Collected date : 1982
Creators : Hervé Richard

Natural site: wet meadow. 99 palynological samples + 4 radiocarbon datings. Drilling of 28.10 meters length.

Pollen analysis - Montlebon (F-25), La Vigne 2

Collected date : 1992
Creators : Hervé Richard

Natural site: wet meadow. 22 palynological samples. From 3,90 to 18,85 meters length: extension of Morteau Stade and Sur la Seigne transect lines.

Pollen analysis - Lavancia-Epercy (F-39), Dortan travertine quarry

Collected date : 1985
Creators : Hervé Richard

Natural site: travertine quarry ("Tuff of Dortan"). 3 palynological samples + 1 radiocarbon dating: 9100 ± 180 BP.

Pollen analysis - Montlebon (F-25), Transect S4

Collected date : 1992
Creators : Hervé Richard

Natural site: wet meadow. 6 palynological samples. From 10.20 to 13.20 meters. Atypical results. Extension of Morteau Stade et Sur la Seigne transect lines.

Pollen analysis - Montlebon (F-25), Sur La Seigne

Collected date : 1982
Creators : Hervé Richard

Natural site: wet meadow. 58 palynological samples + 2 radiocarbon datings. 10,40 meters length.

Pollen analysis - Montlebon (F-25), Transect S3

Collected date : 1992
Creators : Hervé Richard

Natural site: wet meadow. 24 palynological samples. From 4.40 to 25,70 meters length: extension of Morteau Stade and Sur la Seigne transect lines.

Pollen analysis - Morteau (F-25), Transect S2

Collected date : 1992
Creators : Hervé Richard

Natural site; weat meadow. 16 palynological samples. Many drillings along a transect ligne: 6.0 to 12.45 meters length.

Pollen analysis - Morteau (F-25), Transect S1

Collected date : 1992
Creators : Hervé Richard

Natural site; weat meadow. 18 palynological samples. Many drillings along a transect ligne: 4.20 to 12.30 meters length.

Pollen analysis - Morteau (F-25), Stade

Collected date : 1982
Creators : Hervé Richard

Natural site; weat meadow. 62 palynological samples. 12 meters length drilling.

Crystal structure of dicarbon­yl[μ2-methyl­enebis(di­phenyl­phosphane)-κ2P:P′][μ2-2-(2,4,5-tri­methyl­phen­yl)-3-...

The title compound, [FePt(C12H12O)(C18H15P)(C25H22P2)(CO)2]·2C7H8·CH2Cl2 or [(OC)2Fe(μ-dppm)(μ-C(=O)C(2,4,5-C6H2Me3)=CH)Pt(PPh3)], represents an example of a diphosphane-bridged heterobimetallic dimetalla­cyclo­pentenone complex resulting from a bimetallic activation of 1-ethynyl-2,4,5-tri­methyl­be ...

Crystal structure of 2-[bis(benzylsulfanyl)methyl]-6-methoxyphenol

The title compound, C22H22O2S2, 1, represents an example of an ortho-vanillin-based functionalized di­thio­ether, which could be useful as a potential chelating ligand or bridging ligand for coordination chemistry. This di­thio­acetal 1 crystallizes in the ortho­rhom­bic space group Pbca. The phenyl ...

Crystal structure of {μ2-1,2-bis­[(4-methyl­phenyl­sulfan­yl]-3-oxoprop-1-ene-1,3-di­yl-1:2κ2C3:C1}dicarbon­yl-1κ2C-[μ2-methyl­enebis(di­phenyl­phos­phane)-1:2κ2P:P′](tri­phenyl­phosphane-2κP)iron­platinum(Fe—Pt),...

Disciplines : crystallography
Collected date : from 2017 to 2020

The title compound, [FePt(C19H18OS2)(C18H15P)(C25H22P2)(CO)2], 1, [(OC)2Fe(μ-dppm)(μ-C(=O)C(CH2SC6H4Me-4)=CCH2SC6H4Me-4)Pt(PPh3)], represents the first example of a diphosphane-bridged heterobimetallic Fe—Pt dimetalla­cyclo­pentenone complex resulting from a bimetallic activation of ...

Crystal structures of 9-[bis­­(benzyl­sulfan­yl)meth­yl]anthracene and of cyclo-dodeca­kis­(μ2-phenyl­methane­thiol­ato-κ2S:S)hexa­palladium(6 Pd—Pd)–anthracene-9,10-dione (1/1)

The first title compound, C29H24S2, L1, represents an example of an anthracene-based functionalized di­thio­ether, which may be useful as a potential chelating or terminal ligand for coordination chemistry. This di­thio­acetal L1 crystallizes in the monoclinic space group P21/c. The phenyl rings of ...

Effect of global warming on the immune system of phytophagous pests

Collected date : from 1 Feb 2016 ongoing
Creators : Jérôme Moreau

Physiological parameters of the insect immune system (heamocyte, PO, pro PO) Behavioral parameters of larval defense against natural ennemies (activity, flapping) Parameters of insect reproduction (mating success, fecundity, fertility)

57 results

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Université de Bourgogne, Université de Franche-Comté, UTBM, AgroSup Dijon, ENSMM, BSB, Arts des Metiers