Journal ArticleDOI
Iron Catalysts for Selective Anti-Markovnikov Alkene Hydrosilylation Using Tertiary Silanes
Aaron M. Tondreau,Crisita Carmen Hojilla Atienza,Keith J. Weller,Susan A. Nye,Kenrick M. Lewis,Johannes G.P. Delis,Paul J. Chirik +6 more
TLDR
It is reported that well-characterized molecular iron coordination compounds promote the selective anti-Markovnikov addition of sterically hindered, tertiary silanes to alkenes under mild conditions, showing promise for industrial application.Abstract:
Alkene hydrosilylation, the addition of a silicon hydride (Si-H) across a carbon-carbon double bond, is one of the largest-scale industrial applications of homogeneous catalysis and is used in the commercial production of numerous consumer goods. For decades, precious metals, principally compounds of platinum and rhodium, have been used as catalysts for this reaction class. Despite their widespread application, limitations such as high and volatile catalyst costs and competing side reactions have persisted. Here, we report that well-characterized molecular iron coordination compounds promote the selective anti-Markovnikov addition of sterically hindered, tertiary silanes to alkenes under mild conditions. These Earth-abundant base-metal catalysts, coordinated by optimized bis(imino)pyridine ligands, show promise for industrial application.read more
Citations
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Journal ArticleDOI
Nanoscale Fe2O3-based catalysts for selective hydrogenation of nitroarenes to anilines.
Rajenahally V. Jagadeesh,Annette-Enrica Surkus,Henrik Junge,Marga-Martina Pohl,Jörg Radnik,Jabor Rabeah,Heming Huan,Volker Schünemann,Angelika Brückner,Matthias Beller +9 more
TL;DR: In this paper, the authors report convenient and stable iron oxide (Fe2O3)-based catalysts as a more earth-abundant alternative for the transformation of anilines.
Journal ArticleDOI
Mn-, Fe-, and Co-Catalyzed Radical Hydrofunctionalizations of Olefins
TL;DR: A mechanistic framework for understanding this compendium of radical reactions is provided, covering the development of the field and contributions to reaction invention, mechanism, and application to complex molecule synthesis.
Journal ArticleDOI
Earth-Abundant Transition Metal Catalysts for Alkene Hydrosilylation and Hydroboration: Opportunities and Assessments.
TL;DR: Transition-metal-catalysed hydrosilylation and hydroboration reactions are valuable in the synthesis of commodity and fine chemicals, respectively and the catalyst design principles that enable us to perform these reactions using catalysts based on earth-abundant metals are described.
Journal ArticleDOI
Directed evolution of cytochrome c for carbon–silicon bond formation: Bringing silicon to life
TL;DR: It is discovered that heme proteins catalyze the formation of organosilicon compounds under physiological conditions via carbene insertion into silicon–hydrogen bonds, offering an environmentally friendly and highly efficient route to producing enantiopure organosILicon molecules.
References
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Safe and Convenient Procedure for Solvent Purification
TL;DR: This procedure provides a nonhazardous alternative to distillations and vacuum transfers and does not require undue supervision or cooling, yet allows for the rapid collection of large quantities of extremely pure solvents on demand.
Book
Silane Coupling Agents
TL;DR: In this article, a novel organosilane coupling agent is described and its use as an adhesion promoter in mineral-filled unsaturated polymer systems is described, where the coupling agent comprises the reaction product of an isocyanatoalkyl ester of acrylic or methacrylic acid with an aminoorganosilanes.
Patent
Silane coupling agents
Bell Reuben H,Foley Kevin M +1 more
TL;DR: In this article, a carboxylic acid anhydride was used as a coupling agent for glass fibers to resinous plastics, including thermoplastics and thermosetting resins and the elastomeric materials.
Journal ArticleDOI
Radical Ligands Confer Nobility on Base-Metal Catalysts
Paul J. Chirik,Karl Wieghardt +1 more
TL;DR: The oxidation state of metals such as copper and iron can be stabilized by organic ligands that add or lose electrons and facilitate catalysis, and why there can be advantages to having the redox changes occur in the ligands instead.
Journal ArticleDOI
Preparation and molecular and electronic structures of iron(0) dinitrogen and silane complexes and their application to catalytic hydrogenation and hydrosilation.
TL;DR: Structural characterization of a high spin iron(0) alkyne and a bis(silane) sigma-complex has been accomplished and in combination with isotopic labeling studies provides insight into the mechanism of both catalytic C-H and catalyticC-Si bond formation.
Related Papers (5)
Recent advances and actual challenges in late transition metal catalyzed hydrosilylation of olefins from an industrial point of view
Dennis Troegel,Jürgen Stohrer +1 more