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Showing 1 to 13 of 13 for “"protonolysis"”.
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Ligand variation in molybdenum imido alkylidene complexes : a synthetic, structural, and catalytic study
… species was accomplished through protonolysis of Mo(NR)(CHCMe2R')(Me2Pyr)2 with two equivalents of TerCO2H and one of them was characterized through X-ray crystallography. Photolysis experiments of many of the biscarboxylate complexes led to rate constants for the converstion of …
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Amidate complexes of the group 4 metals : sythesis, reactivity, and hydroamination catalysis
… were utilized as ancillaries for Ti, Zr, and Hf. Protonolysis routes into homoleptic amidate complexes, tris(amidate) mono(amido), bis(amidate) bis(amido), and bis(amidate) dibenzyl complexes are high yielding when performed with tetrakis(amido) and tetrabenzyl group 4 starting materials. Many of …
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Synthesis of Single Isomer Trisubstituted Olefins from beta-chloro-alpha-iodo-alpha, beta-Unsaturated Esters and Alkynyl Esters
… to explain the observed stereochemistry and protonolysis of that intermediate produces the key product, (E)-beta-chloro-alpha,beta-unsaturated ester. The protonolysis is mediated by the presence of H2O in the inorganic base, K3PO4·H2O.* Similarly, another method has been developed to …
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Heterocumulene insertions with group 6 Diaryl Nitrosyl complexes
… can be described as being 18-electron species. Protonolysis of the representative heterocumulene-inserted complex Cp*W(NO){112-N(p-tol)C(0)Ph}Ph releases the functionalized heterocumulene molecule, p-tolylbenzamide.All new complexes have been fully characterized by conventional methods. In …
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Indium complexes and their role in the ring-opening polymerization of lactide
… procedure and bound to indium by both a protonolysis and salt metathesis route. A dimethylated indium complex (NNO)InMe₂ (1) was isolated by reaction of InMe₃ with H₂NNO. A one-pot saltmetathesis route was used to produce a unique mixed-bridge dinuclear indium complex [(NNO)InCl] …
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Synthesis, Characterization And Reactivity Studies Of Nickel Complexes Supported By A Phosphinimine-Based Pincer Ligand
… metallacycle [N(1,2-C6H4N=PPh2CH2)2Ni](Na). Protonolysis of this complex reformed [(1,2-C6H4N=PPh2Me)N(1,2-C6H4N=PPh2CH2)]Ni, illustrating the chemical reversibility of this process. The redox non-innocence of the phosphinimine pincer ligand was then explored. Oxidation of …
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Examination of Dynamic Processes in Living Ziegler-Natta Polymerization and New Polypropylene Architectures through Bimolecular Control
… activation of Cp*ZrMesub2[N(Et)C(Me)N(tBu)] via protonolysis of a methyl group with one equivalent of [PhNMesub2H][B(Csub6Fsub5)sub4], has been shown to be a highly active initiator for living alpha-olefin polymerization. Discrete cationic CPZA alkyl complexes of the general structure …
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Synthesis and reactivity of high oxidation state tungsten and molybdenum olefin metathesis catalysts bearing new imido ligands
… (W(NAd)(CHCMe3)(Me2pyr)(OAr) can be accessed via protonolysis by HOAr from W(NAd)(CHCMe3)(Me2pyr)2(lut).
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New Polyazine-Bridged Ru(II),Rh(III) and Ru(II),Rh(I) Supramolecular Photocatalysts for Water Reduction to Hydrogen Applicable for Solar Energy Conversion and Mechanistic Investigation of the Photocatalytic Cycle
… in the presence of an acid suggested that the protonolysis of the RuII,RhIIH and RuII,RhIH species are electrocatalytic H2-evolution pathways. The mechanism is acid-dependent and influenced by terminal ligand. The studies of electrocatalytic proton reduction on these RuII,RhIII complexes …
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Molybdenum and tungsen alkylidene species for catalytic Enantio-, Z-, and E-selective olefin metathesis reactions
… R'= 2,6-Me 2C6H3, C6F5) have been synthesized by protonolysis of Mo(NAr)(CHR)(2,5-Me 2NC4H2)2 with one equivalent of R'SH. Addition of one equiv of 2,6- Me2C6H3SH to Mo(NAr)(CHCMe 2Ph)[OC(CF3)2Me] 2 led to the formation of Mo(NAr)(CHCMe 2Ph)(2,6-Me2C6H3S)[OCMe(CF 3)2] (3) in good yield. Using the …