Recent Developments with Organogermanes: their Preparation and Application in Synthesis and Catalysis

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(8)

Published: Oct. 30, 2023

Within the sphere of traditional Pd

Language: Английский

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Allylgermane synthesis via facile and general nickela-electrocatalyzed electrophile coupling

Chem Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 101257 - 101257

Published: Feb. 1, 2025

Language: Английский

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Pd/Ming-Phos-Catalyzed Asymmetric Three-Component Arylsilylation of N-Sulfonylhydrazones: Enantioselective Synthesis of gem-Diarylmethine Silanes

Journal of the American Chemical Society, Journal Year: 2022, Volume and Issue: 144(34), P. 15468 - 15474

Published: Aug. 22, 2022

A Pd-catalyzed enantioselective three-component reaction of N-sulfonylhydrazones, aryl bromides, and silylboronic esters is developed, enabling the synthesis chiral gem-diarylmethine silanes in high enantioselectivity with use a newly identified Ming-Phos. Compared N-tosyl, more easily decomposed N-mesitylsulfonyl suitable as masking group electron-rich hydrazone to improve efficiency. The features broad scope concerning both coupling partners, enantioselectivity, mild conditions. ready access enantiomers utility this catalytic method are also presented.

Language: Английский

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Transition Metal Phosphides: The Rising Star of Lithium–Sulfur Battery Cathode Host

Small, Journal Year: 2023, Volume and Issue: 20(17)

Published: Dec. 4, 2023

Abstract Lithium–sulfur batteries (LSBs) with ultra‐high energy density (2600 W h kg −1 ) and readily available raw materials are emerging as a potential alternative device low cost for lithium‐ion batteries. However, the insulation of sulfur unavoidable shuttle effect leads to slow reaction kinetics LSBs, which in turn cause various roadblocks including poor rate capability, inferior cycling stability, coulombic efficiency. The most effective way solve issues mentioned above is rationally design control synthesis cathode host LSBs. Transition metal phosphides (TMPs) good electrical conductivity dual adsorption‐conversion capabilities polysulfide (PS) regarded promising hosts new‐generation In this review, main obstacles commercializing LSBs development processes their first elaborated. Then, fixation principles, methods TMPs briefly summarized recent progress reviewed detail. Finally, perspective on future research directions provided.

Language: Английский

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Atomic dispersion of bulk/nano metals to atomic-sites catalysts and their application in thermal catalysis

Nano Research, Journal Year: 2023, Volume and Issue: 16(5), P. 6380 - 6401

Published: March 13, 2023

Language: Английский

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Cobalt‐Catalyzed Regiodivergent Double Hydrosilylation of Arylacetylenes

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 62(1)

Published: Nov. 4, 2022

Abstract Double hydrosilylation of alkynes represents a straightforward method to synthesize bis(silane)s, yet it is challenging if α‐substituted vinylsilanes act as the intermediates. Here, cobalt‐catalyzed regiodivergent double arylacetylenes reported for first time involving this challenge, accessing both vicinal and geminal bis(silane)s with exclusive regioselectivity. Various novel containing Si−H bonds can be easily obtained. The gram‐scale reactions could performed smoothly. Preliminarily mechanistic studies demonstrated that were initiated by α‐hydrosilylation alkynes, followed β‐hydrosilylation α‐vinylsilanes deliver or hydride‐catalyzed give ones. Notably, these used synthesis high‐refractive‐index polymers ( n d up 1.83), demonstrating great potential utility in optical materials.

Language: Английский

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Engineering Catalysis within a Saturated In(III)-Based MOF Possessing Dynamic Ligand–Metal Bonding

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 15(1), P. 1410 - 1417

Published: Dec. 27, 2022

Metal–organic frameworks have developed into a formidable heterogeneous catalysis platform in recent years. It is well established that thermolysis of coordinated solvents from MOF nodes can render highly reactive, coordinatively unsaturated metal complexes which are stabilized via site isolation and serve as active sites catalysis. Such approaches limited to featuring solvated transition-metal must be stable toward the formation "permanent" open sites. Herein, we exploit hemilability metal–carboxylate bonds generate transient an In(III) MOF, pertinent In-centered The catalyze Strecker reaction over multiple cycles without loss activity or crystallinity. We employ computational spectroscopic methods confirm dissociation In(III)–carboxylate bonds. Furthermore, amount within material thus catalytic performance temperature-modulated.

Language: Английский

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Zintl cluster supported low coordinate Rh(i) centers for catalytic H/D exchange between H₂and D₂

Chemical Science, Journal Year: 2022, Volume and Issue: 13(25), P. 7626 - 7633

Published: Jan. 1, 2022

Ligand exchange reactions of [Rh(COD){η4-Ge9(Hyp)3}] with L-type nucleophiles such as PMe3, PPh3, IMe4 (IMe4 = 1,3,4,5-tetramethylimidazol-2-ylidene) or [W(Cp)2H2] result in the displacement COD ligand to afford clusters coordinatively unsaturated trigonal pyramidal rhodium(i) centers [Rh(L){η3-Ge9(Hyp)3}]. These species can be readily protonated allowing access cationic rhodium-hydride complexes, e.g. [RhH(PPh3){η3-Ge9(Hyp)3}]+. act catalysts H/D between H2 and D2 alkene isomerisation, thereby illustrating that metal-functionalized Zintl are active both H-H C-H bond activation processes. The mechanism was probed using parahydrogen induced polarization experiments.

Language: Английский

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Boryl-substituted low-valent heavy group 14 compounds

Chemical Society Reviews, Journal Year: 2023, Volume and Issue: 53(1), P. 361 - 379

Published: Dec. 12, 2023

This review focuses on the low-valent heavy group 14 compounds stabilized by N-heterocyclic boryl ligands and their applications in activation of small molecules inert chemical bonds.

Language: Английский

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Pt(II) complexes bearing P,N-donor ligands as catalysts in chemoselective hydrosilylation, hydrogermylation, and hydroboration of terminal alkenes

Journal of Catalysis, Journal Year: 2024, Volume and Issue: 433, P. 115494 - 115494

Published: April 10, 2024

Language: Английский

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