Search for dissertations about: "Aromatic Substitution"
Showing result 1 - 5 of 44 swedish dissertations containing the words Aromatic Substitution.
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1. Computer-Assisted Organic Synthesis. Addition to Carbonyl Carbons and Aromatic Substitution
Abstract : This thesis concerns the computer-assisted modelling of additions to ketones and aromatic substitution, and how this modelling can be used within an existing program for synthesis planning. I include a review of existing computer-assisted organic synthesis (CAOS) programs, and discuss how some of these programs deal with knowledge representation. READ MORE
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2. Quantum Chemical Studies of Aromatic Substitution Reactions
Abstract : In this thesis, density functional theory (DFT) is used to investigate the mechanisms and reactivities of electrophilic and nucleophilic aromatic substitution reactions (SEAr and SNAr respectively). For SEAr, the σ-complex intermediate is preceded by one (halogenation) or two (nitration) π-complex intermediates. READ MORE
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3. Palladium-catalyzed aromatic coupling and allylic substitution
Abstract : Different types of palladium(II)-catalyzed aromatic couplingreactions have been investigated.The cyclization of diphenyl ether was found to be moresensitive to reaction conditions than was the cyclization ofthe diphenylamine derivatives. READ MORE
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4. On the mechanism of electrophilic aromatic substitution : an investigation by means of the effect of isotopic mass on reaction velocity
Abstract : .... READ MORE
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5. Palladium-Catalyzed Nucleophilic Substitution of Alcohols : Mechanistic Studies and Synthetic Applications
Abstract : This thesis deals with the palladium-catalyzed nucleophilic substitution of π-activated alcohols in which the C–O bond of a non-manipulated hydroxyl group is cleaved. The thesis is divided in two chapters describing two different catalytic systems. READ MORE