The utilization of bridgehead intermediates in organic synthesis [PDF]
Bridgehead intermediates have only recently been employed in organic synthesis. This study was undertaken to further explore and broaden their usefulness.
Hansen, Jeffrey Alan
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Stereoselektivno slobodnoradikalsko fenilsulfenilovanje neaktiviranog δ-ugljenikovog atoma [PDF]
A stereoselective free radical introduction of a phenylthio group onto a nonactivated methyl group in the 8-position, adjacent to a prochiral carbon atom, was achieved by photolysis of (-)-menthyl benzenesulfenate in the presence of hexabutylditin and ...
Došen-Mićović, Ljiljana+3 more
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Radical C–C bond formation using sulfonium salts and light [PDF]
Sulfonium salts are playing an increasingly significant role in contemporary organic synthesis. In particular, the generation of radicals from sulfonium salts is a fundamental process in Nature and has been the subject of investigation for over 50 years.
Perry, Gregory+2 more
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Fluorination studies using difluoroiodotoluene [PDF]
This thesis is divided into three parts. The first part is an introduction to the fluorination chemistry of difluoroiodotoluene and consists of two reviews.
Greaney, Michael Francis
core
Following recent successful results in the search for innovative semi-synthetic cosmeceutical Se-glycoconjugates, the work reported herein explores the development and evaluation of second-generation selenosugar-linked hydroxycinnamic acids as new ...
Giovanna Cimmino+9 more
doaj
The Pummerer rearrangement reaction of 2- or 3-substituted 4-(phenylsulfinyl) butyric acids in the presence of an excess amount of acetic anhydride and a catalytic amount of p-toluenesulfonic acid in refluxing toluene for 1 h afforded 2- or 3-substituted
Mikio Watanabe+4 more
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Skeletal Rearrangements of 9-Thiabicyclononanes and Related Syntheses [PDF]
This thesis descibes two related areas of chemical investigation. In the first section pyrolytic and base-induced eliminations of 2,6-disubstituted 9-thiabicyclo[3.3.1] nonanes and 2-substituted 9-thiabicyclo [3.3.1]non-6-enes are found to occur with ...
Livingston, Catherine Mary
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Synthèse et relations structure-activité cytotoxique et antibactérienne des dirchromones [PDF]
L’exploration de l’espace chimique biologiquement pertinent requiert l’utilisation de règles ou de sources d’inspiration permettant de circonscrire les recherches au sein de l’immensité des assemblages possibles des atomes de carbone.
St-Gelais, Alexis
core
Studies On 2,3-Unsaturated Sugars : Reactivity Switching, Rearrangements And Conjugate Additions [PDF]
Unsaturated sugars constitute as an important category of carbohydrate precursors in synthesis. Specifically, 1,2- and 2,3-unsaturated glycosides are excellent intermediates to derivatize monosaccharides and as building blocks in organic synthesis.
Mukherjee, Arunima
core
Part A: Palladium(II)-Catalyzed Enantioselective Saucy-Marbet Claisen Rearrangement of Propargyloxy indoles to Quaternary Oxindoles and Spirocyclic Lactones. Part B: The Regioselective Oxidative Coupling of Phenols . [PDF]
Part A. The first catalytic, enantioselective Saucy-Marbet Claisen rearrangement has been developed. Palladium(II) catalysts with BINAP or t-BuPHOX ligands were discovered as superior in catalyzing Claisen rearrangements of proparyloxy-substituted ...
Cao, Trung Duy Chi
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