Grignard reagents
Kinetic and economic analysis of reactive capture of dilute carbon dioxide with Grignard reagents
... that Grignard reagents are totally unsuitable for CDU from an environmental ...the Grignard agent may be regenerated by electrolysis, thereby forming an electrolytic magnesium cycle, gives rise to a ...
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Diisopropylamide and TMP turbo-grignard reagents : a structural rationale for their contrasting reactivities
... turbo- Grignard reagents tend to manifest their enhanced magnesiating power in orthodox ortho-positions (conforming to directed ortho- metalation, DoM principles), [11] whereas favourable stereochemical ...
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Diisopropylamide and TMP turbo-grignard reagents : a structural rationale for their contrasting reactivities
... turbo-Grignard reagents can outperform their illustrious ancestors by executing magnesiation reactions of excellent regioselectivity and high functional group tolerance upon a large number of aromatic and ...
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Introducing deep eutectic solvents to polar organometallic chemistry : chemoselective addition of organolithium and grignard reagents to ketones in air
... both Grignard and organolithium reagents, these eutectic mixtures are the solvents of choice to cross the frontiers between synthetically useful main group chemistry and green ...these reagents in ...
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Lin, Wenwei (2006): Preparation of Polyfunctionalized Grignard Reagents and their Application in Aryne Chemistry. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... had a higher rate of the I/Mg-exchange than those bearing the TsO- group. Thus, the addition of i-PrMgCl (2.0 equiv.) to thiophenol (1.0 equiv.) in THF (−78 °C, 10 min) followed by the addition of 2-iodobenzenesulfonate ...
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Studies of Grignard reagent rearrangements by means of nuclear magnetic resonance spectroscopy. I. The structure of allylic Grignard reagents. II. The interconversion of cyclopropylcarbinyl and allylcarbinyl Grignard reagents
... A distinct simplification of the Grignard reagent spectrum would be expected if rapid inversion about the I-carbon atom in cyclobutylmagnesium chloride were able to tak[r] ...
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Stereoselective Synthesis and Corrosion Inhibition Behaviour of Allyldihydrocarveols on Steel in Molar Hydrochloric Acid
... The addition of allylic Grignard reagents to dihydrocarvone gives rise to allyldihydrocarveol P1-P3. The reaction is completely stereoselective. Allyldihydrocarveols P1-P3 are tested as corrosion inhibitors ...
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Reduction of Bromo- and Iodo-2,6-bis(diphenylphosphanylmethyl)benzene with Magnesium and Calcium
... reactions proves that the P-C bond to the methylene unit has been cleaved finally leading to the diphenylphosphinate anions. Earlier findings already demonstrated that oxide ions can be trapped in calcium cage compounds ...
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Bernhardt, Sebastian (2012): Magnesium halide-mediated addition of functionalized organozinc reagents to aldehydes, ketones and carbon dioxide: preparation of solid salt-stabilized organozinc reagents. Preparation of functionalized organoindium reagents via magnesium insertion in the presence of InCl3. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... organometallic reagents is determined by the polarity of the incorporated carbon-metal bond, an appropriate selection of the metal atom and the organic moiety creates versatile tools for specific synthetic ...
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Haag, Benjamin (2011): Synthesis, functionalization and polymerization of heterocycles using frustrated Lewis Pairs, Boron, Magnesium and Zinc reagents. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... so-called Grignard reagents have become very popular nucleophilic ...these reagents are characterized by their convenient synthesis, thermal stability, excellent chemoselectivity and good reactivity ...
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Metal Catalysed Cross Coupling Reactions of Heterocycles
... of Grignard reagents, to date there have been no reports describing a cyclisation-arylation cascade via spirocyclising capture of intermediate iron ...stoichiometric Grignard reagents and ...
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Bérillon, Laurent (2000): Mg- and Zn-Mediated Synthesis of Heterocycles in Solution and on the Solid Phase. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... Grignard reagents are standard carbanion reagents in organic synthesis and have found many applications in organic ...functionalized Grignard reagents has recently been reported by ...
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Synthesis of conjugated oligomers : the preparation and characterization of oligothiophenes and oligophenyls
... The most common synthesis techniques for symmetric oligomers are coupling reactions of functionalized phenyls into the desired oligomer, from Grignard reagents and catalyzed by Ni(dppp[r] ...
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Less hindered ligands give improved catalysts for the nickel catalysed Grignard cross coupling of aromatic ethers
... of Grignard rather than a large excess (Table 1, entry 3 and ...and Grignard reagent. In fact, other Grignard reagents of varying steric properties were tested with this substrate and the same ...
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bentley 2 pdf
... The reactions of the ketones I with Grignard reagents R’MgX are generally complex and lead to the formation of a number of products resulting from the following processes: a normal Grign[r] ...
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Asymmetric synthesis of pyrrolidine containing chemical scaffolds via Tsuji Trost allylation of N tert butanesulfinyl imines
... of Grignard reagents[13] or hydride[14] to γ-chlorinated N-tert-butanesulfinyl imines followed by cyclisation, or via Wacker-type oxidation cyclisation of alkenes with tert- butanesulfinamide ...
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O157: H7 SEROTYPE OF ESCHERICHIA COLI AS AN IMPORTANT EMERGING ZOONOSIS
... coli 0157 antiserum or latex reagents (O157 antibody-coated latex and control latex) for the isolation and identification of E. If using O157 latex reagents, it is important [r] ...
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Dehydrosulfurization of Aromatic Thioamides to Nitriles Using Indium(III) Triflate
... All reagents were of analytical grade and were purchased commercially and used without further purification. All reactions were carried out under an argon atmosphere using magnetic stirring unless otherwise noted. ...
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Bead reagents for membrane proteins.
... Bead-cell coupling based on a reaction between two solids was attempt via directed disulfide formation in the present work. The sulfhydryl group content of ghosts was 2-fold higher in the presence than in the absence of ...
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Development of Methodology to Synthesize (S)-Nicotine Derivatives
... Several 1,4- addition reactions were tried using an ethyl vinyl ether Grignard which was previously demonstrated by Heathcock and Chadarian in the literature. 47 The ethyl vinyl ether is first lithiated by t-BuLi, ...
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