Title: Accelerating the insertion reactions of (NHC)Cu–H via remote ligand functionalization

Journal Article · · Chemical Science
DOI: https://doi.org/10.1039/D1SC01911B · OSTI ID:1811591

Remote modification of an N-heterocyclic carbene ligand with bulky or electron-rich groups in [(NHC)Cu(μ-H)] 2 increases the rate of substrate insertion, which kinetics studies suggest arises from changes in the Cu–H monomer–dimer equilibrium.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1811591
Report Number(s):
PNNL-SA-160159
Journal Information:
Chemical Science, Journal Name: Chemical Science Journal Issue: 34 Vol. 12; ISSN 2041-6520; ISSN CSHCBM
Publisher:
Royal Society of Chemistry (RSC)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

References (68)

Asymmetric Catalysis by Architectural and Functional Molecular Engineering: Practical Chemo- and Stereoselective Hydrogenation of Ketones journal January 2001
Mechanistic Studies on the Insertion of Carbonyl Substrates into Cu‐H: Different Rate‐Limiting Steps as a Function of Electrophilicity journal March 2020
Polishing a Diamond in the Rough: “CuH” Catalysis with Silanes journal January 2007
Bonding and Reactivity of a μ-Hydrido Dicopper Cation journal October 2013
Copper Hydride Catalyzed Hydroamination of Alkenes and Alkynes journal December 2015
Spectroscopic Evidence for a Monomeric Copper(I) Hydride and Crystallographic Characterization of a Monomeric Silver(I) Hydride journal March 2017
Capturing the Monomeric (L)CuH in NHC‐Capped Cyclodextrin: Cavity‐Controlled Chemoselective Hydrosilylation of α,β‐Unsaturated Ketones journal March 2020
Synthesis of a Room-Temperature-Stable Dimeric Copper(I) Hydride journal October 2010
Tuning the Electronic Properties of N-Heterocyclic Carbenes journal August 2007
A Comparison of the Stability and Reactivity of Diamido‐ and Diaminocarbene Copper Alkoxide and Hydride Complexes journal August 2015
Mechanistic Studies on the Copper-Catalyzed Hydrosilylation of Ketones journal February 2010
Mechanism of ketone hydrosilylation using NHC–Cu(I) catalysts: a computational study journal July 2012
Asymmetrische katalysen journal October 1984
Synthesis of (NHC)Rh(cod)Cl and (NHC)RhCl(CO)2 complexes – Translation of the Rh- into the Ir-scale for the electronic properties of NHC ligands journal April 2009
Mechanism of ketone hydrosilylation by Cu(I) catalysts: A theoretical study journal November 2009
CuH-Catalyzed Olefin Functionalization: From Hydroamination to Carbonyl Addition journal May 2020
Hydrogenation and Dehydrogenation Iron Pincer Catalysts Capable of Metal–Ligand Cooperation by Aromatization/Dearomatization journal June 2015
Iron- and Cobalt-Catalyzed Alkene Hydrogenation: Catalysis with Both Redox-Active and Strong Field Ligands journal May 2015
Cyclic (Alkyl)- and (Aryl)-(amino)carbene Coinage Metal Complexes and Their Applications journal April 2020
Coinage Metal Hydrides: Synthesis, Characterization, and Reactivity journal June 2016
Introduction: Metal Hydrides journal June 2016
Electronic Properties of N-Heterocyclic Carbenes and Their Experimental Determination journal March 2018
Development of N-Heterocyclic Carbene–Copper Complexes for 1,3-Halogen Migration journal August 2015
Synthesis and Reactivity of New Copper(I) Hydride Dimers journal February 2016
Heterobimetallic H 2 Addition and Alkene/Alkane Elimination Reactions Related to the Mechanism of E -Selective Alkyne Semihydrogenation journal June 2016
Copper-NHC-Mediated Semihydrogenation and Hydroboration of Alkynes: Enhanced Catalytic Activity Using Ring-Expanded Carbenes journal August 2018
Dynamically Bifurcating Hydride Transfer Mechanism and Origin of Inverse Isotope Effect for Heterodinuclear AgRu-Catalyzed Alkyne Semihydrogenation journal February 2019
Free-radical clocks journal September 1980
A survey of Hammett substituent constants and resonance and field parameters journal March 1991
CuH-Catalyzed Reactions journal August 2008
Kinetic Isotope Effects in the Study of Organometallic Reaction Mechanisms journal August 2011
Hydride-mediated homogeneous catalysis. Catalytic reduction of .alpha.,.beta.-unsaturated ketones using [(Ph3P)CuH]6 and H2 journal November 1989
Selective hydride-mediated conjugate reduction of .alpha.,.beta.-unsaturated carbonyl compounds using [(Ph3P)CuH]6 journal January 1988
Hydrogen Transfer to Carbonyls and Imines from a Hydroxycyclopentadienyl Ruthenium Hydride:  Evidence for Concerted Hydride and Proton Transfer journal February 2001
Kinetics and mechanism of the insertion of olefins into transition metal-hydride bonds journal May 1985
Asymmetric hydrogenation. Rhodium chiral bisphosphine catalyst journal August 1977
Ligand-Accelerated, Copper-Catalyzed Asymmetric Hydrosilylations of Aryl Ketones journal December 2001
Electronically Unsaturated Three-Coordinate Chloride and Methyl Complexes of Iron, Cobalt, and Nickel journal December 2002
Mechanistic Studies of Copper(I)-Catalyzed 1,3-Halogen Migration journal April 2015
Copper-Catalyzed Hydroalkylation of Terminal Alkynes journal January 2015
The Reactivity Patterns of Low-Coordinate Iron−Hydride Complexes journal May 2008
Effects of NHC-Backbone Substitution on Efficiency in Ruthenium-Based Olefin Metathesis journal March 2009
Hydride Transfer Reactions of Transition Metal Hydrides:  Kinetic Hydricity of Metal Carbonyl Hydrides journal December 1998
Triphosphine-Ligated Copper Hydrides for CO 2 Hydrogenation: Structure, Reactivity, and Thermodynamic Studies journal August 2016
para -Selective Alkylation of Benzamides and Aromatic Ketones by Cooperative Nickel/Aluminum Catalysis journal October 2016
Catalytic Anti-Markovnikov Hydroallylation of Terminal and Functionalized Internal Alkynes: Synthesis of Skipped Dienes and Trisubstituted Alkenes journal May 2017
Cu-Catalyzed Hydrocarbonylative C–C Coupling of Terminal Alkynes with Alkyl Iodides journal July 2017
Mechanistic Studies of Copper-Catalyzed Asymmetric Hydroboration of Alkenes journal September 2017
Synthesis of Allylic Alcohols via Cu-Catalyzed Hydrocarbonylative Coupling of Alkynes with Alkyl Halides journal January 2018
Synthesis, Structure, and Alkyne Reactivity of a Dimeric (Carbene)copper(I) Hydride journal July 2004
Cyclopentadienyl and Olefin Substituent Effects on Insertion and β-Hydrogen Elimination with Group 4 Metallocenes. Kinetics, Mechanism, and Thermodynamics for Zirconocene and Hafnocene Alkyl Hydride Derivatives journal October 2005
Remote Substitution on N -Heterocyclic Carbenes Heightens the Catalytic Reactivity of Their Palladium Complexes journal October 2011
Bulky N -Heterocyclic Carbene IPr* in Selected Organo- and Transition Metal-Mediated Catalytic Applications journal March 2012
[Pd(IPr* OMe )(acac)Cl]: Tuning the N-Heterocyclic Carbene in Catalytic C–N Bond Formation journal December 2012
Mechanistic Insight into the (NHC)copper(I)-Catalyzed Hydrosilylation of Ketones journal April 2014
Methoxy-Functionalized N -Heterocyclic Carbenes journal April 2014
Novel Expanded Ring N-Heterocyclic Carbenes: Free Carbenes, Silver Complexes, And Structures journal July 2008
Catalytic Hydrogenation of Carboxylic Acid Esters, Amides, and Nitriles with Homogeneous Catalysts journal January 2014
Towards the online computer-aided design of catalytic pockets journal September 2019
IPr* an easily accessible highly hindered N-heterocyclic carbene journal January 2010
Exceptionally efficient catalytic hydrodechlorination of persistent organic pollutants: application of new sterically shielded palladium carbene complexes journal January 2014
Thermodynamic and kinetic hydricity of transition metal hydrides journal January 2020
An improved method for the computation of ligand steric effects based on solid angles journal January 2006
The occurrence and representation of three-centre two-electron bonds in covalent inorganic compounds journal January 2012
Regioselective transformation of alkynes catalyzed by a copper hydride or boryl copper species journal January 2014
The chemistry of cyclopropylmethyl and related radicals journal January 1993
Rediscovering Organocopper Chemistry Through Copper Hydride. It’s All About the Ligand journal February 2009
Mechanism and Stereoselectivity of Asymmetric Hydrogenation journal July 1982