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 265 for “"organic synthesis"”.
-
Indirect Electro-Organic Synthesis
… strategies for early evaluation of electro-organic process candidates.
-
Organoboranes in organic synthesis
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1989.
-
Organomanganese compounds in organic synthesis
This thesis describes the preparation and reactions of some cyclomanganated chalcones, dienones and aryl ketones. Investigation has previously been undertaken into the reaction of cyclomanganated chalcones and dienones with alkynes to give both pyranyl and cycloheptadienyl Mn(CO)₃ complexes. In the …
-
Photocatalytic applications in organic synthesis.
… more often being limited only by the ability of synthesis techniques to produce them. The development of new synthesis techniques is therefore always of great interest. Among these techniques is semiconductor photocatalysis, most well known for its use in the clean-up of contaminated water; …
-
Pericyclic reactions in organic synthesis
… alternative to conventional solvents for the synthesis of a variety of carboxylic amides. The addition of amines to ketenes generated in situ via the retro-ene reaction of alkynyl ethers provides amides in good yield, in many cases with ethylene as the only byproduct of the reaction. With the …
-
Lewis acid catalysis in organic synthesis
… of alcohols and amines in both conventional organic solvents and as well as in room temperature ionic liquids (TRIL). Acetylation reactions using acetic anhydride as the reagent proceed in excellent yields, in the presence of catalytic amounts (0.01 - 0.5 mol %) of Gd(OTf)₃, at ambient …
-
Silenes: Novel Reagents for Organic Synthesis
… two approaches allowed the cycloadducts to be synthesised in good yields and moderate diastereoselectivities.
-
Asymmetric organic synthesis using organoboron compounds
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1988.
-
Organic synthesis in suppercritical carbon dioxide
Many industrially important synthesis reactions are carried out in liquid solvents such as aromatic compounds, chlorinated hydrocarbons, and other organic liquids which pose environmental and health hazards either because of their toxicity or their persistence in the environment. Hence proper …
-
SHAPING ORGANIC SYNTHESIS WITH LIGHT-DRIVEN PROCESSES
The use of photons to perform photochemical transformations has become an important research topic. The selective and mild generation of highly reactive intermediates, such as radicals, has led to the development of synthetic methods active also on complex molecules. The presented thesis is divided …
-
Use of organocatalysts in stereoselective organic synthesis
The main topic of thesis is the use of organocatalysis to synthesize cyclobutanones derivatives. Cyclobutanone derivatives are useful molecular building blocks for the construction of complex molecular structures. Surprisingly, however, the use of organocatalysts to functionalize cyclobutanones is …
-
Organic Synthesis: Taming Chemistry using Enabling Technologies
… discovery and development of medicinal compound synthesis and new chemical methodologies respectively. It is divided into three distinct sections. The first section addresses a brief introduction to flow chemistry, highlighting the advantages and challenges that have been faced in the past and …
-
Organic synthesis via group 4 metallocene complexes
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Chemistry, 1992
-
Synthesis of Chiral Surfactants for Enantioselective Organic Synthesis.
<p>The first step of the synthesis of the hydrocarbon-based chiral surfactant <b>(2)</b> involved the methylation of (S)-leucinol to give (2S)-N-hexadecyl-N,N-dimethyl-(1-hydroxy-4-methyl-1-pentyl)-2-ammonium bromide (2.92g, 67%). The chiral surfactant was synthesized by reacting …
-
Carbon dots as sustainable photocatalysts for organic synthesis
… CDs as versatile, sustainable photocatalysts for organic synthesis. Chapter 2 explores CDs as photocatalysts for net-oxidative and redox-neutral C-C bond formation. A variety of aromatic substrates and biological motifs were successfully trifluoromethylated under aerobic conditions. To utilise the …
Page 1 of 14