Pincer movement
View article: Dehydrogenation of Ammonia-Borane Employing an Air-stable, Phosphine-free Molecular Nickel Pincer Catalyst
Dehydrogenation of Ammonia-Borane Employing an Air-stable, Phosphine-free Molecular Nickel Pincer Catalyst Open
Herein, we report an air-stable, phosphine-free nickel catalyst supported by an NNN-based functionalized terpyridine ligand that enables the selective dehydrogenation of ammonia borane (AB). Operating under mild reaction conditions with...
View article: Acid Catalyst Is Requiredfor Hydrogenolysis of aLate Metal Hydroxo Complex
Acid Catalyst Is Requiredfor Hydrogenolysis of aLate Metal Hydroxo Complex Open
The cationic AuIII pincer complex [(tBuPCP)AuIII–OH]OTf (AuOH, tBuPCP = 2,6-(CH2PtBu2)2C6H3) was pr…
View article: Acid Catalyst Is Requiredfor Hydrogenolysis of aLate Metal Hydroxo Complex
Acid Catalyst Is Requiredfor Hydrogenolysis of aLate Metal Hydroxo Complex Open
The cationic AuIII pincer complex [(tBuPCP)AuIII–OH]OTf (AuOH, tBuPCP = 2,6-(CH2PtBu2)2C6H3) was pr…
View article: Highly efficient Hydrogenative depolymerisation of Polycaprolactone to 1,6-hexanediol
Highly efficient Hydrogenative depolymerisation of Polycaprolactone to 1,6-hexanediol Open
We report here our study on the development of an efficient process to make 1,6-hexanediol from the hydrogenation of polycaprolactone assisted by ethanolysis. Using a ruthenium SNS pincer catalyst, a...
View article: Cobalt(II) PincerCatalyst-Mediated Direct Alkenylationof 2‑Methylquinolines and 1‑Indanones via Cross DehydrogenativeCoupling of Benzylamines
Cobalt(II) PincerCatalyst-Mediated Direct Alkenylationof 2‑Methylquinolines and 1‑Indanones via Cross DehydrogenativeCoupling of Benzylamines Open
The direct construction of C–C bonds in organic synthesis from amines using a first-row transition-metal catalyst is still an unexplored area. Herein, we report for the first time a phosphine-free Co(II)-N̂N̂O pincer complex catalyzed direct…
View article: Application of cationic acetonitrile Nickel pincer complexes as catalysts in Michael-type hydroamination and hydroalkoxylation of nitriles
Application of cationic acetonitrile Nickel pincer complexes as catalysts in Michael-type hydroamination and hydroalkoxylation of nitriles Open
This report presents the results of a catalyst screening and mechanistic study on the aza-Michael addition reaction of acrylonitrile and its substituted derivatives catalyzed by a family of cationic POCOP-type pincer nickel complexes featu…
View article: Single-StepSynthesis of 1,2-Cyclopentanediones byDehydrogenative Annulation of Ethylene Glycol with Secondary Alcohols
Single-StepSynthesis of 1,2-Cyclopentanediones byDehydrogenative Annulation of Ethylene Glycol with Secondary Alcohols Open
Alcohol coupling reactions that are induced by alcohol dehydrogenation, and generate hydrogen or water as the only byproducts, have become a well-recognized way to carry out important synthetic transformations, such as esterification and a…
View article: Single-Step Synthesis of 1,2-Cyclopentanediones by Dehydrogenative Annulation of Ethylene Glycol with Secondary Alcohols
Single-Step Synthesis of 1,2-Cyclopentanediones by Dehydrogenative Annulation of Ethylene Glycol with Secondary Alcohols Open
Alcohol coupling reactions that are induced by alcohol dehydrogenation, and generate hydrogen or water as the only byproducts, have become a well-recognized way to carry out important synthetic transformations, such as esterification and a…
View article: Parts-Per-Million-LevelOrganocatalysis Enabled byHarnessing π–π Stacking Interactions Beyond ActiveSites
Parts-Per-Million-LevelOrganocatalysis Enabled byHarnessing π–π Stacking Interactions Beyond ActiveSites Open
The direct use of π–π interactions as a key element in catalyst design to control activity and stereoselectivity remains largely unexplored, posing a significant challenge. In this work, we showcase that π–π interactions beyond active site…
View article: Ruthenium Coordination Chemistry of a Bisphosphine Alkyne Pincer Ligand
Ruthenium Coordination Chemistry of a Bisphosphine Alkyne Pincer Ligand Open
Well‐defined alkyne complexes of transition metals that can be accessed across multiple oxidation states remain rare. This scarcity motivates the targeting of new systems for systematic characterization and reactivity studies. In this repo…
View article: CF and CH Bond Activation Reactions of Fluorinated Molecules at Rhodium Pincer Complexes
CF and CH Bond Activation Reactions of Fluorinated Molecules at Rhodium Pincer Complexes Open
The pyridine‐based pincer complexes [Rh(P H NNNP t Bu )H] ( 2a ) (P H NNNP t Bu = {2,6‐( t Bu 2 P NH)( t Bu 2 P NH)(C 5 N H 3 )‐ κ 3 P,N,P}) and [Rh(P H NNOP t Bu )H] ( 2b ) (P H NNOP t Bu = {2‐( t Bu 2 P O)‐6‐( t Bu 2 P NH)(C 5 N H 3 )‐ κ…
View article: Manganese(I)Pincer Complexes as Catalysts for DehydrogenativeAnnulation: Direct Access to Biologically Relevant Heterocycles fromAlcohols and 2′-Aminoacetophenones
Manganese(I)Pincer Complexes as Catalysts for DehydrogenativeAnnulation: Direct Access to Biologically Relevant Heterocycles fromAlcohols and 2′-Aminoacetophenones Open
Herein, we report the synthesis of Mn(I) pincer complexes (C1–C3) of NNE ligands (E = S, Se, Te; L1–L3). While ligands L1-L2 and complexes C1-C2 are previously reported, the tellurium…
View article: Synthesisof Low-Spin Fe(II) NHC Complexes and TheirComputational Evaluations in the Context of Olefin Metathesis
Synthesisof Low-Spin Fe(II) NHC Complexes and TheirComputational Evaluations in the Context of Olefin Metathesis Open
The development of Fe-based olefin metathesis has been a long-standing goal for several decades. Research from both experimental and theoretical groups has indicated that suitable Fe alkylidenes should be low-spin complexes with a high bon…
View article: Synthesisof Low-Spin Fe(II) NHC Complexes and TheirComputational Evaluations in the Context of Olefin Metathesis
Synthesisof Low-Spin Fe(II) NHC Complexes and TheirComputational Evaluations in the Context of Olefin Metathesis Open
The development of Fe-based olefin metathesis has been a long-standing goal for several decades. Research from both experimental and theoretical groups has indicated that suitable Fe alkylidenes should be low-spin complexes with a high bon…
View article: Trichloro[2,5-bis[N-(4-isopropylphenyl)-P,P-diisopropylphosphorimidoyl-κN]pyrrole-κN]zirconium(IV)·Benzene
Trichloro[2,5-bis[N-(4-isopropylphenyl)-P,P-diisopropylphosphorimidoyl-κN]pyrrole-κN]zirconium(IV)·Benzene Open
A new zirconium trichloride complex, supported by a monoanionic, pyrrole-based bisphosphinimine NNN-pincer ligand, [LZrCl3] (L = 2,5-[iPr2P=N(4-iPrC6H4)]2NH(C6H2) (1), is reported. Comparison with a related iminopincer complex reveals sign…
View article: Insights into theCatalytic Production of C4–C6 Aliphatic Diols from Biomass-DerivedPlatform Chemicals: A Review
Insights into theCatalytic Production of C4–C6 Aliphatic Diols from Biomass-DerivedPlatform Chemicals: A Review Open
The synthesis of aliphatic diols (C4–C6) is of profound scientific and industrial significance, yet their predominant production from diminishing fossil resources poses critical environmental challenges. This review comprehensively address…
View article: Visible-Light-Induced Regioselective Thioesterification/Thiocyanationof Unactivated Alkenes Enabled by Spiro-NHC-Ir(III) Catalysis
Visible-Light-Induced Regioselective Thioesterification/Thiocyanationof Unactivated Alkenes Enabled by Spiro-NHC-Ir(III) Catalysis Open
The visible-light-induced regioselective thioesterification and thiocyanation of unactivated alkenes has been successfully achieved for the first time. This transformation is facilitated by a novel pincer CCC-Ir(III) photocatalyst incorpor…
View article: MechanochemicalReductive Amination of Aldehydes andKetones: Solid-State Synthesis of the Antiparkinsonian Drugs Rasagilineand Safinamide
MechanochemicalReductive Amination of Aldehydes andKetones: Solid-State Synthesis of the Antiparkinsonian Drugs Rasagilineand Safinamide Open
A general two-step, one-pot mechanochemical procedure for carrying out reductive amination under solvent-free conditions is described. The method involves milling the starting materials in stainless steel jar and balls in the presence of z…
View article: Metal-Free CatalyticCross-Coupling of Esters andBoranes
Metal-Free CatalyticCross-Coupling of Esters andBoranes Open
Over the last 50 years, palladium-catalyzed cross-coupling has become ubiquitous in chemical synthesis from laboratory to commercial scale. Due to the great importance of these reactions, extensive research efforts have been devoted to imp…
View article: Copper-mediated radiofluorination: A battle against protodeboronation
Copper-mediated radiofluorination: A battle against protodeboronation Open
View article: Mixed-ValentDinuclear Nickel Complexes Enabled byan Expanded PNNP Pincer Ligand
Mixed-ValentDinuclear Nickel Complexes Enabled byan Expanded PNNP Pincer Ligand Open
We report the synthesis and characterization of a family of mixed-valent dinickel complexes, formally Ni23+, featuring a naphthyridine-based PNNPiPr pincer ligand (PNNPiPr = 2,7-bis(di-iso…
View article: Tetramethylphosphorinonesas Functional Alternativesto Di-<i>tert</i>-butylphosphino Substituents in LigandDesign
Tetramethylphosphorinonesas Functional Alternativesto Di-<i>tert</i>-butylphosphino Substituents in LigandDesign Open
Bulky phosphino substituents, such as tBu2P, are key components of ligands in homogeneous catalysis, yet few options exist to tune their electronic properties while retaining comparable steric environments. Her…
View article: NNN-Pd(II)Pincer Complex Catalyzed Acceptorless DehydrogenativeCoupling and Borrowing Hydrogen Transformations via Metal–LigandCooperativity (Nitrene–Imide) in Fluorene Functionalization
NNN-Pd(II)Pincer Complex Catalyzed Acceptorless DehydrogenativeCoupling and Borrowing Hydrogen Transformations via Metal–LigandCooperativity (Nitrene–Imide) in Fluorene Functionalization Open
Pincer complexes efficiently catalyze reactions to generate medicinally important scaffolds using either acceptorless dehydrogenative coupling (ADC) or borrowing hydrogen process (BHP)-based catalytic reactions. A few pincer complexes have…
View article: NNN-Pd(II)Pincer Complex Catalyzed Acceptorless DehydrogenativeCoupling and Borrowing Hydrogen Transformations via Metal–LigandCooperativity (Nitrene–Imide) in Fluorene Functionalization
NNN-Pd(II)Pincer Complex Catalyzed Acceptorless DehydrogenativeCoupling and Borrowing Hydrogen Transformations via Metal–LigandCooperativity (Nitrene–Imide) in Fluorene Functionalization Open
Pincer complexes efficiently catalyze reactions to generate medicinally important scaffolds using either acceptorless dehydrogenative coupling (ADC) or borrowing hydrogen process (BHP)-based catalytic reactions. A few pincer complexes have…
View article: Photoinduced Copper-CatalyzedCarbocyclization of1,7-Enynes with Sulfonium Salts via Radical Relay Strategy
Photoinduced Copper-CatalyzedCarbocyclization of1,7-Enynes with Sulfonium Salts via Radical Relay Strategy Open
A visible-light-induced copper-catalyzed sulfonium salts ring-opening radical-triggered tandem cyclization of 1,7-enynes for the synthesis of three types of highly valuable (distal thioethers-containing) heteropolycyclic compounds is descr…
View article: Flash Communication:Trianionic PNONP Ligand GivesRise to Two PNO Pincer Cores Sharing an Alkoxide Donor
Flash Communication:Trianionic PNONP Ligand GivesRise to Two PNO Pincer Cores Sharing an Alkoxide Donor Open
Complexes of a new PNONP ligand that combines a central alkoxide with two diarylamido and two phosphine donors have been prepared. The PNONP functions as a pentadentate ligand in an octahedral Re complex but forms bimetallic complexes with…
View article: Copper-CatalyzedRegioselective Hydroamination andDual Annulation of 2‑Alkynyl Indole-3-carbonitriles: An Assemblyof Functionalized Amino-Benzo[<i>h</i>]indolo[3,2‑<i>c</i>][1,6]naphthyridines
Copper-CatalyzedRegioselective Hydroamination andDual Annulation of 2‑Alkynyl Indole-3-carbonitriles: An Assemblyof Functionalized Amino-Benzo[<i>h</i>]indolo[3,2‑<i>c</i>][1,6]naphthyridines Open
Presented herein are the copper-catalyzed regioselective hydroamination and successive dual annulation of 2-alkynyl indole-3-carbonitriles. The reaction shows a general approach for the versatile synthesis of amino-benzo[h]indolo[3,…
View article: Copper-CatalyzedRegioselective Hydroamination andDual Annulation of 2‑Alkynyl Indole-3-carbonitriles: An Assemblyof Functionalized Amino-Benzo[<i>h</i>]indolo[3,2‑<i>c</i>][1,6]naphthyridines
Copper-CatalyzedRegioselective Hydroamination andDual Annulation of 2‑Alkynyl Indole-3-carbonitriles: An Assemblyof Functionalized Amino-Benzo[<i>h</i>]indolo[3,2‑<i>c</i>][1,6]naphthyridines Open
Presented herein are the copper-catalyzed regioselective hydroamination and successive dual annulation of 2-alkynyl indole-3-carbonitriles. The reaction shows a general approach for the versatile synthesis of amino-benzo[h]indolo[3,…
View article: Development of Ir(III) Photocatalysts Enabling Blue-Light-InducedHydrocarboxylation of Unactivated Alkenes and Arenes
Development of Ir(III) Photocatalysts Enabling Blue-Light-InducedHydrocarboxylation of Unactivated Alkenes and Arenes Open
Novel types of CCC pincer Ir(III) organometallics with ligands of flexible seven-membered ring N-heterocyclic carbene (NHC) and 1,4-diimine are designed and developed as photocatalysts (PC1–PC3), which show the charact…
View article: Alkyne Dihydroborationvia <i>In Situ</i>-Formed Nickel Cluster Catalysis: ReorderingGroup Addition by MultinuclearNature
Alkyne Dihydroborationvia <i>In Situ</i>-Formed Nickel Cluster Catalysis: ReorderingGroup Addition by MultinuclearNature Open
Understanding the roles and dynamic evolution of active species represents a crucial yet challenging frontier in catalysis research, particularly in systems involving in situ-formed nanoclusters. Owing to the multimetallic nature of…