Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 22 for “"Styrenes"”.
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Surface initiated ATRP of substituted styrenes and functional monomers on flat surfaces
Thesis (Ph. D.)--Michigan State University. Chemistry, 2010
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Studies of the cationic polymerisation of vinylic and energetic cyclic ether monomers
… nitrate ester (-ON02) groups, substituted styrenes and isobutylene has been investigated. The main reaction studied has been the ring-opening polymerisation of 3- (nitratomethyl)-3-methyl oxetane (NIMMO) using the alcohol/BF3.0Et2 binary initiator system. A series of di-, tri- and …
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New Pd and Cu-based catalysts for carbon-heteroatom bond formation
… Copper-Catalyzed Hydroamination of Styrenes and the Extension of the Methodology towards Anti-Markovnikov Hydroamination of Terminal Aliphatic Alkenes The development of a copper-mediated strategy towards the hydroamination of styrene derivatives is reported. In this system, the …
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Decarboxylative Transformations Facilitated via Intermolecular Halogen Transposition using gem-Bromonitroalkanes
… of carboxylic acids into electron-deficient styrenes, enamides, and β-nitroamines.
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INVESTIGATIONS OF HYPERVALENT IODINE COMPOUNDS IN ORGANIC TRANSFORMATIONS
… (PIFA, 26) converts styrenes into benzaldehydes in good to high yields. Contrary to literature description that electron-rich styrenes primarily produces phenylacetaldehydes as major products through a 1, 2-phenyl migration, we have found that these styrenes can be …
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Cross Coupling of Alkenyl Gold Complexes with Alkyl Electrophiles and Nickel Catalyzed Hydroarylation of Alkenes
… with a wide range of alkenes, including styrenes, alkyl substituted alkenes, and enol ethers.
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The synthesis and properties of some chelating ion exchangers.
… the coupling of oxine to diazotised poly(amino-styrenes), have been investigated in terms of their total capacities for Co(II), Ni(II), Cu(II),Zn(II), Al(III), and UO(Il) as a function of pH and their rates of equilibration with, solutions of metal ions. Other chelating polymers containing …
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Control of regioselectivity:oxidation and deprotection
… However, it is shown that the Wacker reaction of styrenes is unusual; under reoxidant-free conditions, the reaction proceeds to give aldehydes as the major products. The scope of this transformation is probed with a series of ring-substituted styrenes: it is found to be general for all …
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Stereoselective synthesis of 1,2-disubstitued βeta-amino alcohols and amino thiols
… anilines and benzylamines react with different styrenes to afford products in good yield and stereoselectivity. Downstream manipulation of the products is facilitated by deprotonation of the amines to enable carbon-sulfur bond cleavage. Chapter 3 of this thesis covers the identification of a …
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Functional Nanomaterials From Bis-Urea Macrocycles
… derivatives, stilbenes, acenaphthylene and styrenes. We developed the method to introduce these solid guests into the channel from its solution. We characterized the tubular host as well as different host*guest complexes by solid-state techniques including PXRD, CP MAS 13C NMR, fluorescence …
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Developments in Nickel-catalyzed Transfer Hydrocyanation Reactions and Novel Skeletal Editing Strategies through Nitrogen Atom Insertion
… a nickel-mediated transfer hydrocyanation of styrenes to selectively access the branched nitriles in the absence of co-catalytic Lewis acids. In-depth mechanistic studies, including initial rate kinetics, elucidation of kinetic isotope effects, and DFT analysis, of the transfer hydrocyanation …
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Studies on transition metal-catalysed oxidations with hydrogen peroxide as terminal oxidant
… of the protocol to alpha,alpha-disubstituted styrenes, which were easily and selectively transformed into the corresponding acetophenone derivatives in good yields.The third part of this thesis was dedicated to the synthesis and application of new chiral C1-symmetric triazacyclononanes. Amino …
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Selective C—H oxidations for complex molecule synthesis and diversification
… limited to resonance-activated olefins like styrenes, enol ethers and α,β-unsaturated carbonyls, Pd(II)/bis-sulfoxide catalysis enables a broad range of olefins to be vinylated in high yields and selectivities, expanding the applicability of this reaction in complex molecule synthesis. …
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FREE-BASE PORPHYRIN FOR CO2 ACTIVATION
… of these useful molecules from aryl azides, styrenes and carbon dioxide has been presented. This methodology resulted effective also in the synthesis of the pharmacologically active oxazalidin-2-one 41. Encouraged by the good results obtained in these studies, the proposed catalytic procedure …
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Mechanism and application of Lewis and Brønsted acid effects in organotransition metal catalysis
… is uniquely selective to provide branched styrenes when using the Cs2CO3/CH3CN base/solvent combination. However, reaction performance differed on large scale reactions, where LiOTf was necessary to observe the Mizoroki-Heck reaction pathway. Mechanistic study, in the form of kinetic …
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