Metal-catalyzed cyclopropanations are chemical reactions that result in the formation of a cyclopropane ring from a metal carbenoid species and an alkene...
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chemistry this method is superior to other carbene based cyclopropanations; as it does not involve metals or halogenated reagents, and produces only N2 as a...
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Simmons–Smith reaction (redirect from Simmons-Smith cyclopropanation)
ChemTube3D. Although asymmetric cyclopropanation methods based on diazo compounds (the Metal-catalyzed cyclopropanations) exist since 1966, the asymmetric...
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with metals to form metal carbenes and used in cyclopropanations and epoxidations. An example of a transition metal-catalyzed cyclopropanation is a synthesis...
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Metal–organic frameworks (MOFs) are a class of porous polymers consisting of metal clusters (also known as Secondary Building Units - SBUs) coordinated...
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2] photocycloadditions, metal-centered cycloaddition and [4+4] photocycloadditions Cycloadditions often have metal-catalyzed and stepwise radical analogs...
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phenyldiazoacetate can be used for cyclopropanation or to insert into C-H bonds of organic substrates. These reactions are catalyzed by dirhodium tetraacetate...
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1,3-Dipolar cycloaddition (section Synthesis of carbonyl ylides from diazomethane derivatives by metal catalysis)
al. independently developed a copper(I)-catalyzed version of the Huisgen reaction, CuAAC (for Copper-catalyzed Azide-Alkyne Cycloaddition), which proceeds...
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"Bis(oxazolines) as chiral ligands in metal-catalyzed asymmetric reactions. Catalytic, asymmetric cyclopropanation of olefins". Journal of the American...
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Rhodium (category Noble metals)
very rare, silvery-white, hard, corrosion-resistant transition metal. It is a noble metal and a member of the platinum group. It has only one naturally...
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carbon (bond angle < 150°). Fp-based reagents have been developed for cyclopropanations. The key reagent is prepared from FpNa with a thioether and methyl...
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advent of transition metal catalyzed reagents provides alternative stereospecific methods for cyclopropanation. The choices for metals include Cu, Rh and...
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Organogold chemistry (section Gold catalyzed reactions)
mechanism of processes catalyzed by various heterogeneous gold catalysts, even compared to other heterogeneous transition metal catalysts. In contrast...
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Haubenreisser, Stefan; Niggemann, Meike (2013-04-02). "Calcium-Catalyzed Cyclopropanation". Angewandte Chemie International Edition. 52 (14): 4016–4019...
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with Single-Bond Character: Intermediate for the Cobalt Complex-Catalyzed Cyclopropanation". Journal of the American Chemical Society. 124 (51): 15152–15153...
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and tyrosine. The mutant T268A-axH, which has an axial histidine ligand catalyzed the reaction between EDA and 1 in 81% yield with 6:94 diastereoselectivity...
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complex using a chiral Schiff base ligand, which he used for the metal–carbenoid cyclopropanation of styrene. In common with Knowles' findings, Noyori's results...
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Rhodium(II) acetate (category Chemical compounds containing metal–metal bonds)
water. It is used as a catalyst for cyclopropanation of alkenes. It is a widely studied example of a transition metal carboxylate complex. Rhodium(II) acetate...
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extended to transformations catalyzed by nickel, gold, silver, copper, rhodium, and ruthenium, among other transition metals. Dialkylbiaryl phosphine ligands...
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Artificial metalloenzyme (section Metal substitution)
which catalyzed cyclopropanation enantioselectively. This strategy involves substitution of a native metal center in a metallocofactor, by another metal, that...
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Demonceau A, Noels AF, Hubert AJ, Warin R, Teyssie P (1981). "Transition-metal-catalyzed reactions of diazo compounds. 2. Addition to aromatic molecules: Catalysis...
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1016/S0040-4039(01)96558-X. Lewandos, Glenn S.; Pettit, R. (1971). "Mechanism of the metal-catalyzed disproportionation of olefins". Journal of the American Chemical Society...
39 KB (4,096 words) - 05:27, 16 January 2024
PMID 24823261. Doyle MP (2009-01-19). "Exceptional selectivity in cyclopropanation reactions catalyzed by chiral cobalt(II)-porphyrin catalysts". Angewandte Chemie...
13 KB (1,274 words) - 06:47, 22 June 2024
with hexamethylbenzene and with S8. Rhodium(II) trifluoroacetate catalyzes cyclopropanation of alkenes by diazo compounds: RCH=CR'H + CH3CH2O2CCH(N2) →...
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Alkene (section Metal complexation)
complex PtCl3(C2H4)]−. These complexes are related to the mechanisms of metal-catalyzed reactions of unsaturated hydrocarbons. Alkenes are produced by hydrocarbon...
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conditions and catalyst selection. Intermediates of the metal catalyzed cycloisomerization in which the metal coordinates the alkyne or alkene activating either...
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Che Chi-ming (section Metal Catalysts)
"Highly Diastereoselective Epoxidation of Allyl-Substituted Cycloalkenes Catalyzed by Metalloporphyrins". Organic Letters. 6 (10): 1597–1599. doi:10.1021/ol0496475...
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catalyst lifetime . Metal ion contamination is a practical issue for many metal-catalyzed processes, and is especially important for pharmaceutical application...
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Induced Enantioselective Metal Catalysis:? The Importance of Ion-Pairing in Copper-Catalyzed Olefin Aziridination and Cyclopropanation". Organic Letters. 2...
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on a range of topics, including phenols in palladium-catalyzed reactions, and ruthenium-catalyzed carbon-carbon bond forming reactions. He also completed...
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