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Showing 1 to 19 of 19 for “"Phthalimide"”.
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From conventional to microphotochemistry: A study of phthalimide and phthalonitrile derivatives
… photochemistry for the preparation of new phthalimide and phthalonitrile derivatives. Photodecarboxylative (PDC) additions of carboxylates to phthalimides were explored, this work included addition reactions using phenyl acetates, α-keto carboxylates and protected amino acids. Once these …
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Synthesis of some analogues of n-substituted phthalimide and benzo-tetracyanoquinodimethane
… intermolecular photochemical reactions of the phthalimide system. It will also be shown that N-(2-hydroxypheny1)phthalimide and N-(2- aminopheny1)phthalimide do not behave in the same photochemical manner as the analogous N-(2-methylpheny1)phthalimide and N-(2-ethylphenyl)phthalimide, which …
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Lanthanide complexes of phthalimide and phthalamate containing ligands: synthesis, photophysical properties and their potential applications
… synthesis of Tb(lII) and Eu(lll) complexes of phthalimide and phthalamate derivatives as responsive lanthanide complexes.
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Development of Photochemical Surface Modification Technique
… efficiency. II. Fabrication of NP-Films via phthalimide self-assembled monolayer on glass surfaces. Concluding the thesis, I will briefly describe an outreach research project in collaboration with my GK-12 fellowship team. In Chapter One, we will introduce nanotechnology and surface …
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Lewis base catalyzed enantioselective oxysulfenylation of alkenes
… alkenes. The weak Lewis acid N-(phenylthio)-phthalimide can be activated in the presence of a moderate Brønsted acid and chiral Lewis base donors. The resulting complex is a powerful sulfenylating agent capable of sulfenium transfer to simple mono-, di- and trisubstituted alkenes with high …
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Lewis base catalyzed enantioselective sulfenoamination of alkenes
… Lewis acidic sulfenylating agent, N-arylthiophthalimide, is activated by the coordination of a chiral Lewis base, binaphthyl-derived selenophosphoramide, in presence of a Brønsted acid as a co-catalyst. The Lewis base-acid adduct exhibits a strong sulfenylating ability towards various olefins …
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Molecular, Biochemical, and Toxicological Evaluation of Anticholinesterases for control of the Malaria Mosquito, Anopheles gambiae
… mutation within the catalytic site. A bivalent phthalimide-pyrazole carbamate and sulfenylated phenyl N-methyl carbamates were highly toxic when topically applied onto insect but less toxic by treated filter paper assays. In vitro evaluation of a molecular mosquito-selectivity model using AChE …
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Relationship between molecular structure and surface properties of self-assembled monolayers
… monolayers, 3- and (4-mercaptophenyl) phthalimide (MPP) monolayers, and by reaction of the 3- and 4-aminothiophenol monolayers with the phthalic anhydride were studied using reflection absorption infrared spectroscopy, contact angle measurement, ellipsometry, and electrochemical …
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Polymers for Next Generation Lithography
… We have selected substituted N-methacryloyloxy phthalimide, containing cycloimido group as a pendant, which is strong enough to give sufficient thermal stability, at the same time expected to be sensitive to electron beam exposure because of the labile N - 0 bond. Electronic substituents on the …
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Adhesion study of thermoplastic polyimides with Ti-6Al-4V alloy and PEEK-graphite composites
… and molecular weight control with non-reactive phthalimide end-groups. The adhesive bond performance of these polyimides was investigated as a function of molecular weight, siloxane incorporation, residual solvent, test temperature, and polyimide structure via single lap shear samples prepared …
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Photodecarboxylative additions to phthalimides and their application in the synthesis of AKS-186 and its analogues
… addition of various carboxylates to phthalimides has been developed in our group as a powerful access to hydroxyl- and methylene-isoindolinones. Likewise, the intramolecular version yields the corresponding cyclisation products. In this thesis the intermolecular version, i.e. the …
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Synthesis and characterization of high performance polyimide homopolymers and copolymers
… The polymerization of the bis(N-pyrimidine phthalimide) derivative of 6F dianhydride and 4, 4' oxydianiline at ~65 °C in N-methyl pyrrolidone with acetic acid as a catalyst resulted in a high molecular weight, cyclized polyimide. Fully cyclized, processable, fluorine containing polyimides …
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Synthesis, morphologies and applications of polyoxometalate-containing diblock copolymers
… rod-coil diblock copolymers. After removing the phthalimide protecting groups to regenerate aryl amines, POM clusters were finally linked to the coil block of all diblock copolymers to yield the targeted hybrid diblock copolymers. The covalent cluster attachment was confirmed by UV-Vis …
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Structure-property behavior of novel high performance thermoplastic and thermoset structural adhesives and composite matrix resins
… to controlled molecular weights and well-defined phthalimide endgroups via solution imidization. They were characterized by intrinsic viscosity, DSC, TGA, and thermomechanical measurements. Molecular weight control was successful and these polyimides were thermally stable via dynamic TGA up to …
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Fused Heterocycles as Spinster Homolog 2 Inhibitors and Regio- and Stereoselective Copper-Catalyzed Borylation-Protodeboronation of 1,3-Diynes: Access to (Z)-1,3-Enynes
… confirmed that fused heterocycles, including phthalimide and benzoxazoles, demonstrated moderate inhibition of Spns2 using a HeLa cell assay. An extensive structure-activity relationship (SAR) study of these scaffolds was performed to analyze the impact of various amine head groups, …
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I. Palladium-catalyzed anti-Markovnikov oxidative amination of olefins II. Catalytic deracemization of axially chiral diols III. Three component carboamination of electron deficient alkenes
… bond with an acidic nitrogen nucleophile such as phthalimide. As the terminal oxidant is molecular oxygen, the only byproduct is half an equivalent of water, rendering the reaction very environmentally friendly. The reaction requires a functional group distal to the alkene to facilitate the …
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Synthesis and Characterization of Wholly Aromatic Semicrystalline Polyimides Based Upon Bis(4-Aminophenoxy) Benzenes
… 20-30,000 <M<sub>n</sub>> with non-reactive phthalimide groups to achieve appropriate melt viscosities and good melt stability. This was done by off-setting the stoichiometry in favor of the diamine, reacting with a calculated amount of phthalic anhydride and imidizing in bulk above the Tg …
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Synthesis and evaluation of novel multi-target compounds for the treatment of Alzheimer's disease.
Alzheimer's disease (AD) is the most common neurodegenerative disease, and a major cause of death worldwide. The prevalence of this debilitating disorder is rising exponentially, and there is an urgent unmet need for a cure. AD is a complex, multifactorial disease and therefore the multi-target …
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NEW NCN-PLATINUM(II) COMPLEXES WITH LUMINESCENT PROPERTIES
… are two aromatic thiolates, a simple azide, a phthalimide, a thioacetate and an isothiocyanate. The substitution reactions were carried out in acetone or MeOH, at room temperature and under Argon atmosphere, using a large excess of the new ligand. iii) Finally, PtCl8-PtCl13 still have the same …