Results 271 to 280 of about 398,278 (315)
Some of the next articles are maybe not open access.
BioEssays, 1986
AbstractUntil the discovery of catalytic RNA, the notion that all enzymes are proteins had seemed incontrovertible. Now the existence of RNA enzymes has been confirmed in a variety of contexts. What is known about the chemistry of RNA‐catalyzed reactions is reviewed below, with particular attention to the self‐splicing rRNA intron of Tetrahymena ...
D S, Waugh, N R, Pace
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AbstractUntil the discovery of catalytic RNA, the notion that all enzymes are proteins had seemed incontrovertible. Now the existence of RNA enzymes has been confirmed in a variety of contexts. What is known about the chemistry of RNA‐catalyzed reactions is reviewed below, with particular attention to the self‐splicing rRNA intron of Tetrahymena ...
D S, Waugh, N R, Pace
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Nature Chemistry
Ciro Romano, Jack I. Mansell, and David J. Procter have explored the versatility and selectivity of samarium diiodide, and its use as a radical relay catalyst.
C. Romano, J. I. Mansell, D. J. Procter
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Ciro Romano, Jack I. Mansell, and David J. Procter have explored the versatility and selectivity of samarium diiodide, and its use as a radical relay catalyst.
C. Romano, J. I. Mansell, D. J. Procter
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2009
The reversible reaction of primary or secondary amines with enolizable aldehydes or ketones affords nucleophilic intermediates, enamines. With chiral amines, catalytic enantioselective reactions via enamine intermediates become possible. In this review, structure-activity relationships and the scope as well as current limitations of enamine catalysis ...
Petri M, Pihko +2 more
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The reversible reaction of primary or secondary amines with enolizable aldehydes or ketones affords nucleophilic intermediates, enamines. With chiral amines, catalytic enantioselective reactions via enamine intermediates become possible. In this review, structure-activity relationships and the scope as well as current limitations of enamine catalysis ...
Petri M, Pihko +2 more
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Journal of Organometallic Chemistry, 1986
Abstract The reactivity of the model complex - [RhCl(COD)] 2 - bis(diphenylphosphineethyl)etramethyldisiloxane (I) with the substrates of the hydrosilylation (1-hexene and triethoxysilane) has been studied spectrophotometrically at room temperature.
Wojciech Duczmal +2 more
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Abstract The reactivity of the model complex - [RhCl(COD)] 2 - bis(diphenylphosphineethyl)etramethyldisiloxane (I) with the substrates of the hydrosilylation (1-hexene and triethoxysilane) has been studied spectrophotometrically at room temperature.
Wojciech Duczmal +2 more
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ChemInform, 2006
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reek, J.N.H. +4 more
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AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Reek, J.N.H. +4 more
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Nature Chemistry, 2018
Probing single-atom alloys has shown that, when interactions between the components are weak, the electronic structure of the dilute element resembles that of a free atom, making bonding with reactants more like that in molecular homogeneous catalysts.
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Probing single-atom alloys has shown that, when interactions between the components are weak, the electronic structure of the dilute element resembles that of a free atom, making bonding with reactants more like that in molecular homogeneous catalysts.
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Chem. Soc. Rev., 2014
Catalysts often perform miraculous transformations of reactants A to very different products P in seemingly a single step. Such catalysts appear as a black box. This tutorial shows how we can shine light into this black box and understand the reaction mechanism.
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Catalysts often perform miraculous transformations of reactants A to very different products P in seemingly a single step. Such catalysts appear as a black box. This tutorial shows how we can shine light into this black box and understand the reaction mechanism.
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2017
Heterogeneous catalysts are plentiful in the chemical industry. In this chapter, a short overview will be given on the steps needed to convert a reactant into a product over a heterogeneous catalyst. In addition, an introduction will be given on the way a catalyst assists in the making and breaking of chemical bonds.
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Heterogeneous catalysts are plentiful in the chemical industry. In this chapter, a short overview will be given on the steps needed to convert a reactant into a product over a heterogeneous catalyst. In addition, an introduction will be given on the way a catalyst assists in the making and breaking of chemical bonds.
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Metallaphotoredox: The Merger of Photoredox and Transition Metal Catalysis
Chemical Reviews, 2022Noah B Bissonnette +2 more
exaly