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Showing 1 to 8 of 8 for “"potassium tert-butoxide"”.
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Reductive Alkylation Reactions Using Tetramethyldisiloxane and Potassium Tert-Butoxide Via Reductive-Radical Polar Crossover
… of alkoxide base and silicon hydride species – potassium tert-butoxide (KOtBu) and 1,1,3,3-tetramethyldisiloxane (TMDSO) – facilitates two different reactions involving the formation of C(sp3)-C(sp3) bonds: the hydroalkylation of vinylarenes (chapter 2), and the cross-electrophile coupling of …
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Synthesis and Use of a Tetradentate Ligand With C4v Symmetry: 1alpha, 2alpha, 3alpha, 4alpha-Tetrahydroxy- 1beta, 2beta, 3beta, 4beta-Tetramethylcyclobutane
… double bonds, using the in situ combination of potassium tert -butoxide and tert -butyl hypochlorite, is presented. The stereospecific intramolecular photodimerization of an enediol pyrophosphate is described. Hydrolysis of the photoproduct from this reaction gives …
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Synthesis, characterization and properties of epoxide containing block and alternating copolymers
… PEO oligomers have been synthesized with potassium tert-butoxide as an initiator in tetrahydrofuran, and in the bulk. The PEO oligomers were reacted with 4-(chloromethyl) benzoyl chloride to yield a 4-(chloromethyl) benzoate functionalized PEO oligomer quantitatively. This oligomer was …
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The polymerization of lactic acid anhydrosulphite by anionic initiators
… of lactic acid anhydrosulphite by lithium tert-butoxide in nitrobenzene has been examined by means of gas evolution measurements. The kinetics of the reaction with potassium tert-butoxide (and also sec-butyl lithium) in tetrahydrofuran has been studied using calorimetric techniques. LAAS …
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Investigations into the Manipulation of 1,2,3-Triazoles and Towards an Asymmetric ‘Click’ Reaction of Meso Bis-Alkynes
… 40-45% product. They are then reacted with potassium tert-butoxide to generate the 1,5-disubstituted 1,2,3-triazole in yields of 83% or above. The reaction steps were optimised to give a standard procedure for the conversion of 1,4- to 1,5-triazoles, with a small series of test reactions …
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Studies on organic electron donors and their applications in chemistry
… halides 5-16 with benzene in the presence of potassium tert-butoxide 17 to form biaryls 18-24 via electron transfer [graphic of electron transfer process].;It also investigates the different outcomes of the reaction when a diketopiperazine is used or not, providing evidence for formation of a …
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Doubly Bonded Derivatives of Si and Ge: Cycloaddition Reactions and Polymer Chemistry
… of alkyllithium (R = Me, Bu, t-Bu) reagents and potassium tert-butoxide were added to the highly reactive silene Mes2Si=CHCH2t-Bu and the germene Mes2Ge=CHCH2t-Bu, in diethyl ether. 1,2-Addition products were obtained regioselectively and in good yield after treatment with a weak acid with no …
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Boron-Mediated Semireduction of Alkynoic Acid Derivatives
… this reaction, addition of catalytic amounts of potassium tert-butoxide to propiolamides generates an alkoxide that coordinates to pinacolborane and rapidly produces (E)-cinnamamides in 35 – 96% yield and >99:1 E:Z stereoselectivity. This reaction effectively reduces an internal alkyne to afford …