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.
Results
Showing 1 to 20 of 130 for “"Aromatic Compounds"”.
-
Electrochemical Studies of Reducible Aromatic Compounds
Made available in DSpace on 2014-12-05T19:38:19Z (GMT). No. of bitstreams: 1 6305155.pdf: 3594503 bytes, checksum: c5bfbe3c610459934f8e9d03581a87dd (MD5) Previous issue date: 1963
-
Annelation of Aromatic Compounds via 1-Aminoisobenzofurans
The annelation of aromatic amides via 1-aminoisobenzofurans as transient reaction intermediates are reported. Three different methodologies are developed for generation of the aminoisobenzofurans in the presence of dienophiles. These involve: (1) the decomposition of an …
-
Structures and absorption spectra of polycyclic aromatic compounds
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
-
Protein and Pathway Engineering for Biosynthesis or Aromatic Compounds
A type I fatty acid synthase, FAS-B from Brevibacterium ammoniagenes, and a type I polyketide synthase, 6-MSAS from Penicillium patulum, were successfully engineered via rational pathway design to synthesize TAL in vivo with a maximal yield of 1.7 g/L. The direct biosynthesis of phloroglucinol from …
-
Novel approaches to functionalized indoles and polysubstituted aromatic compounds
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1997.
-
Rapid reductive dechlorination of environmentally hazardous aromatic compounds and pesticides
Organochlorine compounds, such as polychlorinated biphenyls (PCBs), pentachlorophenol (PCP), p,p'-DDE and Toxaphene, have been widely used in industry and agriculture for more than fifty years. Although they have served their purpose very effectively and at low cost, many of these compounds have …
-
Microbial degradation of selected aromatic compounds in a hazardous waste site
Microbial degradation of five aromatic compounds was followed in aseptically-taken subsurface soil samples and ground water samples from the vicinity of a pit used to dispose the waste from a wood creosoting plant. The five compounds--anthracene, dibenzofuran, fluorene, naphthalene, and …
-
The crystal structures of para-chloriodoxy benzene and some other aromatic compounds
… into any simple geometrical figure. These iodine compounds were done in order to determine the valency directions of polyvalent iodine, and to see if there was any relationship between the directions of the covalent bonds in trivalent and pentavalent iodine. If such a relationship does exist, it …
-
Liquid Phase Carbon-Thirteen Dynamic Nuclear Polarization Study of Monosubstituted Aromatic Compounds
… transfer system for different mono-substituted aromatic compounds, such as, anisole, nitrobenzene and halobenzenes. These substitute groups covered a wide range of electronic effects from strong electron donating groups to strong electron withdrawing groups. Hammett linear free energy …
-
The determination and environmental significance of planar aromatic compounds in the marine environment.
… the importance of three groups of planar aromatic compounds to the marine environment. The groups comprised chlorobiphenyls (CBs), polychlorinated dioxins and -furans (PCDD/Fs) and polycyclic aromatic hydrocarbons (PAHs). Previous studies on toxicity, occurrence, origins and methods of …
-
Biochemistry and genetics of the pathway for the anaerobic degradation of aromatic compounds by Eubacterium oxidoreducens
… deficient mutants were unable to grow on any aromatic substrates and converted gallate to pyrogallol and dihydrophloroglucinol. The conversion of gallate to non-aromatic intermediates by cell extract of the wild-type stain was dependent on the presence of 1,2,3,5-benzenetetrol for the …
-
Studies of Titanium Dioxide Nanoparticles and Surfactants Effects, Singly and in Combinations, on Luminescence Intensity of Some Aromatic Compounds.
… and combined effects on some fluorescent aromatic compounds such as pyrene, fluoranthene, anthracene, phenanthrene, and carbazole. Rutile phase TiO<sub>2</sub> was synthesized using the low temperature sol-gel method. Carbazole and phenanthrene were severely quenched by all surfactants …
-
Bioaccumulation and Toxicokinetics of Polycyclic Aromatic Compounds and Metals in Giant Floater Mussels (Pyganodon grandis) Exposed to a Simulated Diluted Bitumen Spill
… This thesis identifies the bioaccumulating compounds derived from naturally weathered dilbit in adult giant floater mussels (Pyganodon grandis), to determine the rates at which they were accumulated and excreted. More specifically, the bioaccumulation potential and toxicokinetic parameters …
-
The Adsorptive Separation of Aromatic Hydrocarbon Mixtures
… purification of slack waxes from traces of aromatic compounds using type 13X molecular sieves to achieve 0.01% aromatics in the product. The limited literature relating to the adsorption of high molecular weight aromatic compounds by zeolites was reviewed. Equilibrium isotherms were …
-
Isolation and Partial Characterization of a Pseudomonas Species That Degrades 3,6-Dichloro-2-Methoxybenzoic Acid (Analog Enrichment)
The capacity to degrade aromatic compounds completely with even complex structures is not an unusual property of bacteria. However, chlorinated aromatic compounds tend to resist degradation. Recently, bacteria have been isolated which can utilize some chlorinated compounds as growth substrates. …
-
Designing high-performance yeast factories for the production of high-value aromatics based on a novel species and its consortia
… cosmetics, nutraceuticals and pharmaceuticals, aromatic compounds have garnered multitudinous attentions. Microbial production of aromatic compounds from simple building blocks serves as a promising approach toward sustainable and scalable production of value-added chemicals. Owning to its well …
-
The characterisation of crude oils and the analysis of by-products produced in petrochemical plants
… (GC/MS) has been evaluated for identifying aromatic compounds in crude oils. A standard hexane solution of polyaromatic hydrocarbons (PAHs) was used for SPE method development using a coupled silic cyano cartridge system. Quantitative GC/MS analysis confirmed that the SPE method developed …
Page 1 of 7