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Showing 1 to 20 of 1336 for “"intermediates"”.
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Synthesis of Limonoid and Steroidal intermediates
… been converted into two advanced triterpenoid intermediates. In an eleven-step sequence 4 was transformed into the bicyclic intermediate (42) that could be used in an enantiospecific approach to the limonoids. The enone 42 was subsequently dialkylated in a regio- and stereoselective manner to …
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Formation and Pathogenicity of Cytotoxic Curli Intermediates
… formation and pathogenicity of cytotoxic curli intermediates previously unidentified in the in vitro biofilm. The identification of multiple curli conformations within the biofilm biogenesis aides in the understanding of amyloid kinetics in the enteric biofilm. Together, these studies provide a …
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SPECTROSCOPIC STUDIES OF SOME AROMATIC DECOMPOSITION INTERMEDIATES
A number of aromatic radicals have been produced and identified. A re-examination has been made of spectra from discharges through toluene and toluene-alpha-d, In each case a vibrational frequency analysis has been carried out on the bands: to the violet of the (0,0) band. The fundamental …
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Reactive Intermediates in Carbon-Functional Organosilicon Reactions
… view to the detection of silicon-carbon π-bonded intermediates.
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Investigating intermediates in 6-methylsalicylic acid biosynthesis
… synthesised and used to off-load enzyme-bound intermediates from 6-MSAS. In assays with acetyl-CoA and acetoacetyl-CoA alone, diketide and triketide intermediates were off-loaded and detected by HPLC-HR-ESI-MS. In the presence of NADPH, the off-loaded triketide was reduced by the ketoreductase …
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Method Development Towards Catalytic Transformations of Reactive Intermediates
… focused largely on accessing highly reactive intermediates, including ortho-quinone methides (o-QMs) and benzylic carbocations, from simple and easily accessed starting materials. The primary goals of each project were to access bioactive material or value added chemicals via the simplest and …
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Strong Field Ionization Of Radicals And Reaction Intermediates
… and their isomers. Radicals and reaction intermediates were produced using an established method flash pyrolysis. This combination allows for new insight in studying radicals and provide complementary results to the other detection methods used. This is the first study reporting the use of …
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Synthesis of chiral intermediates by deritivization of monosaccharides
<p> <p>Conformationally constrained bicyclic amino acids are invaluable in the synthesis of natural products and peptidomimetics. Aeruginosins contain novel bicyclic amino acid, 2--‐carboxy--‐6--‐hydroxyl octahydrindole (Choi) as the core structure. Aeruginosins are tetra peptide serine protease …
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Osmium complexes as models for CO reduction intermediates
… as organo-metallic models for CO reduction intermediates. In Chapter 1 some aspects of ligand reactivity of the carbon-donor ligands CO, CS, CSe, CTe and carbenes in transition metal complexes are reviewed. The reduction reactions of these ligands are emphasized. The preparation and …
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Mechanisms and Intermediates of Iron Bleomycin Catalyzed Oxidations
… which probe the chemical mechanisms and reactive intermediates involved in iron bleomycin catalyzed oxidations.
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Modified Purines. Rearrangement Through 5-Substituted Purine Intermediates
A novel rearrangement has been utilized for the synthesis of imidazo{1,5-a}-1,3,5-triazinones (1) which are analogues of N(9)-substituted guanines, hypoxanthines, and xanthines. Structures were established in this series (1) on the basis of precursors and routes of synthesis, infrared spectra, mass …
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Studies of the Intermediates in Viral Rna Replication
Made available in DSpace on 2014-12-09T22:04:19Z (GMT). No. of bitstreams: 1 6910730.pdf: 3631190 bytes, checksum: 2f37bfb90a50d0ceecba65806ad9e004 (MD5) Previous issue date: 1968
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Harnessing the potential of coinage metal redox intermediates
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
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Electron microscopy of bovine Parvovirus DNA replication intermediates
… DNA species were termed replicative forms and intermediates. The purpose of this study was to isolate and characterize the replicative forms from bovine parvovirus (BPV)-infected cells. Low molecular weight DNA was isolated from BPV-infected cells by the guanidine hydrochloride method and the …
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Analytical Query Processing Based on Continuous Compression of Intermediates
… size. Since in in-memory systems, accessing intermediates is as expensive as accessing base data, intermediates should be handled as efficiently as possible, too. While there are approaches trying to avoid intermediates whenever it is possible, we envision the orthogonal approach of …
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Newly Discovered Intermediates in the Chlorophyll a Biosynthetic Pathway
Several new intermediates in chlorophyll a biosynthesis were detected in higher plants and chemically identified. The newly discovered pigments are divinyl protochlorophyllide, divinyl protochlorophyllide ester, divinyl chlorophyllide a, divinyl chlorophyll a and monovinyl …
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Studies on Proposed Intermediates in the Biosynthesis of Cholesterol
Made available in DSpace on 2014-12-10T23:24:27Z (GMT). No. of bitstreams: 1 7206990.pdf: 12138368 bytes, checksum: d52532e640806dddf3e88dc9576f789d (MD5) Previous issue date: 1971
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