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Showing 1 to 7 of 7 for “"Acetophenones"”.
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Photochemistry of dibenzobarrelenes and [alpha]-adamantyl acetophenones in both the solution and crystalline state
… The X-ray crystal structures of four a-adamantyl acetophenones were determined, and their solid state reactivities were discussed relative to the proposed ideal geometric requirements for hydrogen abstraction. Chiral crystals of carboxylic acid-amine salts were synthesized for solid state …
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Phosphorescence of a Series of Substituted Aceto- and Benzophenones in Crystalline form at Room Temperature
… o-o triplet energies of a series of benzo- and acetophenones under study as sensitizers in the photochemical cycloaddition of isophorone to 1,1-dimethoxyethylene. | A recording emission spectrograph with lifetime measuring capabilities was constructed from available equipment. Emission spectra …
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Synthesis and application of pinene-pyridine derivatives in asymmetric catalysis
… from α-pinene and a range of 2-pyridine-acetophenones by employing Kröhnke annulation reaction as the key cyclisation step. Although poor enantioselectivity was achieved (up to 12% ee), high reactivity of the catalysts is, however, promising.
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Some chemistry of orthomanganated ketones
… the new species characterised are substituted acetophenones, analogues of (1), namely: 3,4,5-trimethoxy (3); 4,5,6-trimethoxy (4); 3-t-butyldimethylsiloxy-4,5-dimethoxy (5); 4,5-dimethoxy (6); 5,6-dimethoxy (7); 3-benzyloxy-4,5-dimethoxy (8); and 3-t-butyldimethylsiloxy (9). Hetero aromatic …
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Preparation and reactions of some organic derivatives of manganese carbonyl compounds
… of PhN=S=O with a number of orthomanganated acetophenones led to the corresponding orthomanganated imines e.g. (38) (Figure 1). The structure of η²-3-chloro-2-[1-(N-phenylimino)ethyl]-phenyl-tetracarbonylmanganese (44) was determined by single crystal X-ray diffraction. PhS(O)₂NSO and …
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Synthesis and kinetics of isomerisation of 2',6'-dihydroxychalcones
… first involved base-catalysed condensation of acetophenones and benzaldehydes with free phenolic groups protected as their tetrahydro-pyranyl ethers, followed by deprotection at pH 2. The second involved reaction of flavanones with chlorosilanes, in the presence of …