51
|
Zhang X, Tobisch S, Hultzsch KC. σ-Insertive Mechanism versus Concerted Non-insertive Mechanism in the Intramolecular Hydroamination of Aminoalkenes Catalyzed by Phenoxyamine Magnesium Complexes: A Synthetic and Computational Study. Chemistry 2015; 21:7841-57. [DOI: 10.1002/chem.201406468] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 03/09/2015] [Indexed: 11/08/2022]
|
52
|
Rochat R, Yamamoto K, Lopez MJ, Nagae H, Tsurugi H, Mashima K. Organomagnesium-Catalyzed Isomerization of Terminal Alkynes to Allenes and Internal Alkynes. Chemistry 2015; 21:8112-20. [DOI: 10.1002/chem.201500179] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Indexed: 11/10/2022]
|
53
|
Tobisch S. Computational Mechanistic Elucidation of the Intramolecular Aminoalkene Hydroamination Catalysed by Iminoanilide Alkaline-Earth Compounds. Chemistry 2015; 21:6765-79. [DOI: 10.1002/chem.201500233] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2015] [Indexed: 11/06/2022]
|
54
|
Arrowsmith M, Hill MS, Kociok-Köhn G. Activation of N-Heterocyclic Carbenes by {BeH2} and {Be(H)(Me)} Fragments. Organometallics 2015. [DOI: 10.1021/om501314g] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Merle Arrowsmith
- Department of Chemistry, University of Bath, Claverton
Down, Bath, BA2 7AY, U.K
| | - Michael S. Hill
- Department of Chemistry, University of Bath, Claverton
Down, Bath, BA2 7AY, U.K
| | | |
Collapse
|
55
|
Romero N, Roşca SC, Sarazin Y, Carpentier JF, Vendier L, Mallet-Ladeira S, Dinoi C, Etienne M. Highly Fluorinated Tris(indazolyl)borate Silylamido Complexes of the Heavier Alkaline Earth Metals: Synthesis, Characterization, and Efficient Catalytic Intramolecular Hydroamination. Chemistry 2015; 21:4115-25. [DOI: 10.1002/chem.201405454] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Indexed: 11/11/2022]
|
56
|
Penafiel J, Maron L, Harder S. Early Main Group Metal Catalysis: How Important is the Metal? Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408814] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Johanne Penafiel
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands)
| | - Laurent Maron
- Université de Toulouse et CNRS INSA, UPS, CNRS, UMR 5215, LPCNO, 135 avenue de Rangueil, 31077 Toulouse (France)
| | - Sjoerd Harder
- Inorganic and Organometallic Chemistry, Friedrich Alexander University Erlangen‐Nürnberg, Egerlandstrasse 1, 91058 Erlangen (Germany)
| |
Collapse
|
57
|
Penafiel J, Maron L, Harder S. Early main group metal catalysis: how important is the metal? Angew Chem Int Ed Engl 2014; 54:201-6. [PMID: 25376952 DOI: 10.1002/anie.201408814] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 10/14/2014] [Indexed: 11/08/2022]
Abstract
Organocalcium compounds have been reported as efficient catalysts for various alkene transformations. In contrast to transition metal catalysis, the alkenes are not activated by metal-alkene orbital interactions. Instead it is proposed that alkene activation proceeds through an electrostatic interaction with a Lewis acidic Ca(2+) . The role of the metal was evaluated by a study using the metal-free catalysts: [Ph2 N(-) ][Me4 N(+) ] and [Ph3 C(-) ][Me4 N(+) ]. These "naked" amides and carbanions can act as catalysts in the conversion of activated double bonds (CO and CN) in the hydroamination of ArNCO and RNCNR (R=alkyl) by Ph2 NH. For the intramolecular hydroamination of unactivated CC bonds in H2 CCHCH2 CPh2 CH2 NH2 the presence of a metal cation is crucial. A new type of hybrid catalyst consisting of a strong organic Schwesinger base and a simple metal salt can act as catalyst for the intramolecular alkene hydroamination. The influence of the cation in catalysis is further evaluated by a DFT study.
Collapse
Affiliation(s)
- Johanne Penafiel
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands)
| | | | | |
Collapse
|
58
|
Erickson KA, Dixon LS, Wright DS, Waterman R. Exploration of tin-catalyzed phosphine dehydrocoupling: Catalyst effects and observation of tin-catalyzed hydrophosphination. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
59
|
Tobisch S. Intermolecular hydroamination of vinylarenes by iminoanilide alkaline-earth catalysts: a computational scrutiny of mechanistic pathways. Chemistry 2014; 20:8988-9001. [PMID: 24958273 DOI: 10.1002/chem.201402557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Indexed: 11/10/2022]
Abstract
A thorough computational exploration of the mechanistic intricacies of the intermolecular hydroamination (HA) of vinylarenes by a recently reported class of kinetically stabilised iminoanilide [{N^N}Ae{N(SiMe3)2}⋅(THF)n] alkaline-earth amido compounds (Ae = Ca, Sr, Ba) is presented. Two distinct mechanistic pathways for catalytic HA mediated by alkaline-earth and rare-earth compounds have emerged over the years that account equally well for the specific features of the process. On one hand, a concerted proton-assisted pathway to deliver the amine product in a single step can be invoked and, on the other, a stepwise σ-insertive pathway that comprises a rapid, reversible migratory olefin insertion step linked to a less facile, irreversible Ae-C alkyl bond aminolysis. The results of the study presented herein, which employed a heavily benchmarked and reliable DFT methodology, supports a stepwise σ-insertive pathway that involves fast and reversible migratory C=C bond insertion into the polar Ae-N pyrrolido σ bond. This proceeds with strict 2,1 regioselectivity via a highly polarised four-centre transition state (TS) structure, linked to irreversible intramolecular Ae-C bond aminolysis of the alkaline-earth alkyl intermediate as the energetically favourable mechanism. Turnover-limiting aminolysis is consistent with the significant KIE measured; the DFT-derived effective barrier matches the Eyring parameter empirically determined for the best-performing {N^N}Ba(NR2) catalyst gratifyingly well. It also predicts the observed trend in reactivity (Ca<Sr<Ba) correctly and the computationally estimated primary KIE is close to the observed values. Non-competitive kinetic demands militate against the operation of the alternative concerted proton-assisted pathway, which describes N-C bond formation triggered by concomitant amino proton transfer at the C=C linkage via a multi-centre TS structure. A detailed comparison of {N^N}Ae(NR2) catalysts revealed that the variation in the Ae-pyrrolido bond strength together with the degree of protection of the alkaline earth by a sterically encumbering iminoanilide ligand scaffold not only profoundly influences the performance in HA catalysis, but also the likelihood of traversing rival mechanistic pathways.
Collapse
Affiliation(s)
- Sven Tobisch
- University of St Andrews, School of Chemistry, Purdie Building, North Haugh, St Andrews, Fife KY16 9ST (UK), Fax: (+44) 1797-383-652.
| |
Collapse
|
60
|
Germain S, Schulz E, Hannedouche J. Anti-Markovnikov Hydroamination of Aromatic Alkenes with Secondary Amines Catalyzed by Easily Accessible Yttrium Complexes. ChemCatChem 2014. [DOI: 10.1002/cctc.201402012] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
61
|
Butera V, Russo N, Sicilia E. Hydrogen Release from Dialkylamine-Boranes Promoted by Mg and Ca Complexes: A DFT Analysis of the Reaction Mechanism. Chemistry 2014; 20:5967-76. [DOI: 10.1002/chem.201304329] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Indexed: 11/06/2022]
|
62
|
Arrowsmith M, Shepherd WMS, Hill MS, Kociok-Köhn G. Alkaline earth catalysis for the 100% atom-efficient three component assembly of imidazolidin-2-ones. Chem Commun (Camb) 2014; 50:12676-9. [PMID: 25209547 DOI: 10.1039/c4cc05223d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A variety of functionalised imidazolidin-2-ones may be synthesised under very mild reaction conditions using non-toxic and cost-effective alkaline earth bis(amide) pre-catalysts in a 100% atom-efficient, intermolecular one-pot assembly from inexpensive alkyne and cumulene reagents.
Collapse
|
63
|
Arrowsmith M, Hill MS, Kociok-Köhn G. Dearomatized BIAN Alkaline-Earth Alkyl Catalysts for the Intramolecular Hydroamination of Hindered Aminoalkenes. Organometallics 2013. [DOI: 10.1021/om400955v] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Merle Arrowsmith
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | - Michael S. Hill
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | | |
Collapse
|
64
|
Jin L, Wu Y, Zhao X. A novel non-insertive mechanism for neutral organozirconium-catalyzed aminoalkene hydroamination: Density functional theory survey. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.06.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
65
|
Arrowsmith M, Crimmin MR, Hill MS, Lomas SL, MacDougall DJ, Mahon MF. Catalytic and Stoichiometric Cumulene Formation within Dimeric Group 2 Acetylides. Organometallics 2013. [DOI: 10.1021/om400678d] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Merle Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Mark R. Crimmin
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7
2AZ, U.K
| | - Michael S. Hill
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Sarah L. Lomas
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | | | - Mary F. Mahon
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| |
Collapse
|
66
|
Liu B, Roisnel T, Carpentier JF, Sarazin Y. Heteroleptic alkyl and amide iminoanilide alkaline earth and divalent rare earth complexes for the catalysis of hydrophosphination and (cyclo)hydroamination reactions. Chemistry 2013; 19:13445-62. [PMID: 23955798 DOI: 10.1002/chem.201301464] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Indexed: 11/10/2022]
Abstract
[{N^N}M(X)(thf)n] alkyl (X=CH(SiMe3)2) and amide (X=N(SiMe3)2) complexes of alkaline earths (M=Ca, Sr, Ba) and divalent rare earths (Yb(II) and Eu(II) ) bearing an iminoanilide ligand ({N^N}(-)) are presented. Remarkably, these complexes proved to be kinetically stable in solution. X-ray diffraction studies allowed us to establish size-structure trends. Except for one case of oxidation with [{N^N}Yb(II){N(SiMe3)2}(thf)], all these complexes are stable under the catalytic conditions and constitute effective precatalysts for the cyclohydroamination of terminal aminoalkenes and the intermolecular hydroamination and intermolecular hydrophosphination of activated alkenes. Metals with equal sizes across alkaline earth and rare earth families display almost identical apparent catalytic activity and selectivity. Hydrocarbyl complexes are much better catalyst precursors than their amido analogues. In the case of cyclohydroamination, the apparent activity decreases with metal size: Ca>Sr>Ba, and the kinetic rate law agrees with R(CHA) =k[precatalyst](1)[aminoalkene](1). The intermolecular hydroamination and hydrophosphination of styrene are anti-Markovnikov regiospecific. In both cases, the apparent activity increases with the ionic radius (Ca<Sr<Ba) but the rate laws are different, and obey R(HA) =k[styrene](1)[amine](1)[precatalyst](1) and R(HP) =k[styrene](1)[HPPh2 ](0)[precatalyst](1), respectively. Mechanisms compatible with the rate laws and kinetic isotopic effects are proposed. [{N^N}Ba{N(SiMe3)2}(thf)2] (3) and [{N^N}Ba{CH(SiMe3)2}(thf)2] (10) are the first efficient Ba-based precatalysts for intermolecular hydroamination and hydrophosphination, and display activity values that are above those reported so far. The potential of the precatalysts for C-N and C-P bond formation is detailed and a rare cyclohydroamination-intermolecular hydroamination "domino" sequence is presented.
Collapse
Affiliation(s)
- Bo Liu
- Organometallics: Materials and Catalysis, Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex (France), Fax: (+33) 223-236-939
| | | | | | | |
Collapse
|
67
|
Manna K, Everett WC, Schoendorff G, Ellern A, Windus TL, Sadow AD. Highly enantioselective zirconium-catalyzed cyclization of aminoalkenes. J Am Chem Soc 2013; 135:7235-50. [PMID: 23631736 DOI: 10.1021/ja4000189] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Aminoalkenes are catalytically cyclized in the presence of cyclopentadienylbis(oxazolinyl)borato group 4 complexes {PhB(C5H4)(Ox(R))2}M(NMe2)2 (M = Ti, Zr, Hf; Ox(R) = 4,4-dimethyl-2-oxazoline, 4S-isopropyl-5,5-dimethyl-2-oxazoline, 4S-tert-butyl-2-oxazoline) at room temperature and below, affording five-, six-, and seven-membered N-heterocyclic amines with enantiomeric excesses of >90% in many cases and up to 99%. Mechanistic investigations of this highly selective system employed synthetic tests, kinetics, and stereochemistry. Secondary aminopentene cyclizations require a primary amine (1-2 equiv vs catalyst). Aminoalkenes are unchanged in the presence of a zirconium monoamido complex {PhB(C5H4)(Ox(4S-iPr,Me2))2}Zr(NMe2)Cl or a cyclopentadienylmono(oxazolinyl)borato zirconium diamide {Ph2B(C5H4)(Ox(4S-iPr,Me2))}Zr(NMe2)2. Plots of initial rate versus [substrate] show a rate dependence that evolves from first-order at low concentration to zero-order at high concentration, and this is consistent with a reversible substrate-catalyst interaction preceding an irreversible step. Primary kinetic isotope effects from substrate conversion measurements (k'obs((H))/k'obs((D)) = 3.3 ± 0.3) and from initial rate analysis (k2((H))/k2((D)) = 2.3 ± 0.4) indicate that a N-H bond is broken in the turnover-limiting and irreversible step of the catalytic cycle. Asymmetric hydroamination/cyclization of N-deutero-aminoalkenes provides products with higher optical purities than obtained with N-proteo-aminoalkenes. Transition state theory, applied to the rate constant k2 that characterizes the irreversible step, provides activation parameters consistent with a highly organized transition state (ΔS(++) = -43(7) cal·mol(-1) K(-1)) and a remarkably low enthalpic barrier (ΔH(++) = 6.7(2) kcal·mol(-1)). A six-centered, concerted transition state for C-N and C-H bond formation and N-H bond cleavage involving two amidoalkene ligands is proposed as most consistent with the current data.
Collapse
Affiliation(s)
- Kuntal Manna
- Department of Chemistry and U.S. Department of Energy Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
| | | | | | | | | | | |
Collapse
|
68
|
Hill MS, Liptrot DJ, Mahon MF. A Magnesium-Mediated Cascade Assembly for the Atom-Economical Synthesis of Bis(imidazolidine-2,4-dione)s. Angew Chem Int Ed Engl 2013; 52:5364-7. [DOI: 10.1002/anie.201301489] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 03/20/2013] [Indexed: 11/09/2022]
|
69
|
Hill MS, Liptrot DJ, Mahon MF. A Magnesium-Mediated Cascade Assembly for the Atom-Economical Synthesis of Bis(imidazolidine-2,4-dione)s. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
70
|
Hannedouche J, Schulz E. Asymmetric Hydroamination: A Survey of the Most Recent Developments. Chemistry 2013; 19:4972-85. [DOI: 10.1002/chem.201203956] [Citation(s) in RCA: 204] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Indexed: 11/10/2022]
|
71
|
Arrowsmith M, Hill MS, Kociok-Köhn G. Magnesium catalysis of imine hydroboration. Chemistry 2013; 19:2776-83. [PMID: 23307492 DOI: 10.1002/chem.201203190] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Indexed: 11/11/2022]
Abstract
The β-diketiminato magnesium alkyl complex [LMgnBu] (L=CH{CMe(NDipp)}(2), Dipp=diisopropylphenyl) is shown to be a highly effective precatalyst for the hydroboration of alkyl and aryl substituted aldimines and ketimines with pinacol borane (HBpin). Catalysis is proposed to occur through a sequence of Mg-N/B-H metathesis and rate-determining Mg-H/N=C insertion steps, a proposal strongly supported by stoichiometric studies and kinetic analysis. The reactions are observed to proceed through the intermediacy of well-defined magnesium amides, two examples of which have been isolated and structurally characterized. Mechanistic investigations suggest that the catalytic rate-determining process occurs at an isolated magnesium center and requires the presence of two molecules of the imine substrate for effective turnover. This latter observation is rationalized as a requirement for the secondary substrate molecule to displace HBpin from the coordination sphere of the catalytic magnesium center.
Collapse
Affiliation(s)
- Merle Arrowsmith
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | | | | |
Collapse
|
72
|
Liu B, Roisnel T, Carpentier JF, Sarazin Y. Cyclohydroamination of Aminoalkenes Catalyzed by Disilazide Alkaline-Earth Metal Complexes: Reactivity Patterns and Deactivation Pathways. Chemistry 2013; 19:2784-802. [DOI: 10.1002/chem.201203562] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Indexed: 11/07/2022]
|
73
|
Hintermann L, Ackerstaff J, Boeck F. Inner Workings of a Cinchona Alkaloid Catalyzed Oxa-Michael Cyclization: Evidence for a Concerted Hydrogen-Bond-Network Mechanism. Chemistry 2013; 19:2311-21. [DOI: 10.1002/chem.201203505] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Indexed: 11/09/2022]
|
74
|
Hill MS, Liptrot DJ, MacDougall DJ, Mahon MF, Robinson TP. Hetero-dehydrocoupling of silanes and amines by heavier alkaline earth catalysis. Chem Sci 2013. [DOI: 10.1039/c3sc51797g] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
|
75
|
|
76
|
Kashiwame Y, Kuwata S, Ikariya T. Catalytic Intramolecular Hydroamination with a Bifunctional Iridium Pyrazolato Complex: Substrate Scope and Mechanistic Elucidation. Organometallics 2012. [DOI: 10.1021/om301063n] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yohei Kashiwame
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo
152-8552, Japan
| | - Shigeki Kuwata
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo
152-8552, Japan
| | - Takao Ikariya
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo
152-8552, Japan
| |
Collapse
|
77
|
Liu B, Carpentier JF, Sarazin Y. Highly effective alkaline earth catalysts for the sterically governed hydrophosphonylation of aldehydes and nonactivated ketones. Chemistry 2012; 18:13259-64. [PMID: 22976437 DOI: 10.1002/chem.201201489] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/17/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Bo Liu
- Organometallics: Materials and Catalysis, Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | | | | |
Collapse
|
78
|
Brinkmann C, Barrett AGM, Hill MS, Procopiou PA, Reid S. Alkaline Earth Catalysis of Alkynyl Alcohol Hydroalkoxylation/Cyclization. Organometallics 2012. [DOI: 10.1021/om3008663] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christine Brinkmann
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington,
London, SW7 2AZ U.K
| | - Anthony G. M. Barrett
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington,
London, SW7 2AZ U.K
| | - Michael S. Hill
- Department
of Chemistry, University of Bath, Claverton
Down, Bath, BA2 7AY U.K
| | - Panayiotis A. Procopiou
- GlaxoSmithKline Medicines Research Center, Gunnels Wood Road, Stevenage, Hertfordshire,
SG1 2NY U.K
| | - Stephanie Reid
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington,
London, SW7 2AZ U.K
| |
Collapse
|
79
|
Li L, Huang G, Chen Z, Liu W, Wang X, Chen Y, Yang L, Li W, Li Y. Gallium Trichloride Catalyzed Hydroamination of Alkynes: Scope, Limitation, and Mechanistic Studies by DFT. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200829] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
80
|
β-Diketiminato-Alkaline Earth Cationic Complexes: Synthesis, Structures, Lactide Polymerization and Unusual Oxidative Reactivity of the Ancillary Ligand. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200183] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
81
|
Tobisch S. Metal-Ligand Cooperation in Catalytic Intramolecular Hydroamination: A Computational Study of Iridium-Pyrazolato Cooperative Activation of Aminoalkenes. Chemistry 2012; 18:7248-62. [DOI: 10.1002/chem.201103620] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Revised: 02/27/2012] [Indexed: 11/09/2022]
|
82
|
Liu B, Roisnel T, Carpentier JF, Sarazin Y. When Bigger Is Better: Intermolecular Hydrofunctionalizations of Activated Alkenes Catalyzed by Heteroleptic Alkaline Earth Complexes. Angew Chem Int Ed Engl 2012; 51:4943-6. [DOI: 10.1002/anie.201200364] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 02/17/2012] [Indexed: 11/06/2022]
|
83
|
Liu B, Roisnel T, Carpentier JF, Sarazin Y. When Bigger Is Better: Intermolecular Hydrofunctionalizations of Activated Alkenes Catalyzed by Heteroleptic Alkaline Earth Complexes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200364] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
84
|
Panda TK, Kaneko H, Michel O, Pal K, Tsurugi H, Törnroos KW, Anwander R, Mashima K. Dianion and Monoanion Ligation of 1,4-Diaza-1,3-butadiene to Barium, Strontium, and Calcium. Organometallics 2012. [DOI: 10.1021/om300054h] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tarun K. Panda
- Department
of Chemistry, Graduate School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
- Department of Chemistry, Indian Institute of Technology Hyderabad, Ordnance Factory Estate, Yeddumailaram
502205, Andhra Pradesh, India
| | - Hiroshi Kaneko
- Department
of Chemistry, Graduate School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
| | - Olaf Michel
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
| | - Kuntal Pal
- Department
of Chemistry, Graduate School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
| | - Hayato Tsurugi
- Department
of Chemistry, Graduate School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
| | - Karl W. Törnroos
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
| | - Reiner Anwander
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle
18, 72076 Tübingen, Germany
| | - Kazushi Mashima
- Department
of Chemistry, Graduate School of Engineering
Science, Osaka University, Toyonaka, Osaka
560-8531, Japan
| |
Collapse
|
85
|
Rumble SL, Page MJ, Field LD, Messerle BA. In Situ Catalysts for the Intramolecular Hydroamination of Aminoalkynes - What Ligand Properties Determine Catalyst Activity? Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201101307] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
86
|
Otero A, Lara-Sánchez A, Nájera C, Fernández-Baeza J, Márquez-Segovia I, Castro-Osma JA, Martínez J, Sánchez-Barba LF, Rodríguez AM. New Highly Active Heteroscorpionate-Containing Lutetium Catalysts for the Hydroamination of Aminoalkenes: Isolation and Structural Characterization of a Dipyrrolidinide–Lutetium Complex. Organometallics 2012. [DOI: 10.1021/om2011672] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antonio Otero
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Agustín Lara-Sánchez
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Carmen Nájera
- Departamento de Quı́mica Orgánica, Facultad de Ciencias, and Instituto de Sı́ntesis Orgánica
(ISO), Universidad de Alicante, Apdo 99,
03080-Alicante, Spain
| | - Juan Fernández-Baeza
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Isabel Márquez-Segovia
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - José Antonio Castro-Osma
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Javier Martínez
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Luis F. Sánchez-Barba
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| | - Ana M. Rodríguez
- Departamento de Quı́mica
Inorgánica, Orgánica
y Bioquı́mica, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain
| |
Collapse
|
87
|
Tobisch S. Intramolecular Aminoalkene Hydroamination Mediated by a Tethered Bis(ureate)zirconium Complex: Computational Perusal of Various Pathways for Aminoalkene Activation. Inorg Chem 2012; 51:3786-95. [DOI: 10.1021/ic202753m] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sven Tobisch
- School of Chemistry, University of St Andrews, Purdie Building, North Haugh, St Andrews KY16
9ST, United Kingdom
| |
Collapse
|
88
|
Reznichenko AL, Hultzsch KC. The Mechanism of Hydroaminoalkylation Catalyzed by Group 5 Metal Binaphtholate Complexes. J Am Chem Soc 2012; 134:3300-11. [DOI: 10.1021/ja211945m] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander L. Reznichenko
- Department of Chemistry and Chemical
Biology, Rutgers, The State University of New Jersey, 610 Taylor
Road, Piscataway, New Jersey 08854-8087, United States
| | - Kai C. Hultzsch
- Department of Chemistry and Chemical
Biology, Rutgers, The State University of New Jersey, 610 Taylor
Road, Piscataway, New Jersey 08854-8087, United States
| |
Collapse
|
89
|
Brinkmann C, Barrett AGM, Hill MS, Procopiou PA. Heavier Alkaline Earth Catalysts for the Intermolecular Hydroamination of Vinylarenes, Dienes, and Alkynes. J Am Chem Soc 2012; 134:2193-207. [DOI: 10.1021/ja209135t] [Citation(s) in RCA: 164] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christine Brinkmann
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington,
London SW7 2AZ, U.K
| | - Anthony G. M. Barrett
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington,
London SW7 2AZ, U.K
| | - Michael S. Hill
- Department
of Chemistry, University of Bath, Claverton
Down, Bath BA2 7AY, U.K
| | - Panayiotis A. Procopiou
- GlaxoSmithKline Medicines Research Center, Gunnels Wood Road, Stevenage, Hertfordshire
SG1 2NY, U.K
| |
Collapse
|
90
|
Lin M, Liu W, Chen Z, Yang L, Pei H, Wu J, Wan X, Lei T, Li Y. Magnesium complexes supported by pyrrolyl ligands: syntheses, characterizations, and catalytic activities towards the polymerization of ε-caprolactone. RSC Adv 2012. [DOI: 10.1039/c2ra01235a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
91
|
|
92
|
Zhao Y, Lin M, Chen Z, Pei H, Li Y, Chen Y, Wang X, Li L, Cao Y, Zhang Y, Li W. Titanium and zirconium amido complexes supported by imidazole-containing ligands: syntheses, characterization and catalytic activities. RSC Adv 2012. [DOI: 10.1039/c1ra00408e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
|
93
|
Tobisch S. Mechanistic elucidation of the yttrium(iii)-catalysed intramolecular aminoalkene hydroamination: DFT favours a stepwise σ-insertive mechanism. Dalton Trans 2012; 41:9182-91. [DOI: 10.1039/c2dt30814b] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
94
|
Reznichenko AL, Hultzsch KC. Early Transition Metal (Group 3–5, Lanthanides and Actinides) and Main Group Metal (Group 1, 2, and 13) Catalyzed Hydroamination. TOP ORGANOMETAL CHEM 2011. [DOI: 10.1007/3418_2011_22] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
95
|
Tobisch S. Does a Concerted Non-Insertive Mechanism Prevail over a σ-Insertive Mechanism in Catalytic Cyclohydroamination by Magnesium Tris(oxazolinyl)phenylborate Compounds? A Computational Study. Chemistry 2011; 17:14974-86. [DOI: 10.1002/chem.201101490] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Revised: 08/31/2011] [Indexed: 11/07/2022]
|
96
|
Chapurina Y, Ibrahim H, Guillot R, Kolodziej E, Collin J, Trifonov A, Schulz E, Hannedouche J. Catalytic, enantioselective intramolecular hydroamination of primary amines tethered to di- and trisubstituted alkenes. J Org Chem 2011; 76:10163-72. [PMID: 22059438 DOI: 10.1021/jo202009q] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
The in situ preparation of chiral amido alkyl ate yttrium complexes from an array of chiral N-benzyl-like-substituted binaphthyldiamines is reported. These chiral heteroleptic complexes are shown to be efficient catalysts for the enantioselective intramolecular hydroamination of primary amines tethered to sterically demanding alkenes at high reaction temperatures. Fine tuning of their chiral environment allowed up to 77% ee to be reached for the cyclization of aminoalkenes bearing 1,2-dialkyl-substituted carbon-carbon double bonds. These chiral complexes also demonstrate the ability to promote the cyclization of amine-tethered trisubstituted alkenes in up to 55% ee, as the first report of the formation of enantioenriched quaternary centers by an hydroamination reaction.
Collapse
Affiliation(s)
- Yulia Chapurina
- Equipe de Catalyse Moléculaire, Université Paris-Sud, ICMMO, UMR 8182, Orsay F-91405, France
| | | | | | | | | | | | | | | |
Collapse
|
97
|
Manna K, Kruse ML, Sadow AD. Concerted C–N/C–H Bond Formation in Highly Enantioselective Yttrium(III)-Catalyzed Hydroamination. ACS Catal 2011. [DOI: 10.1021/cs200511z] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kuntal Manna
- Department of Chemistry and U.S. DOE Ames Laboratory, Iowa State University, Ames Iowa 50011, United States
| | - Marissa L. Kruse
- Department of Chemistry and U.S. DOE Ames Laboratory, Iowa State University, Ames Iowa 50011, United States
| | - Aaron D. Sadow
- Department of Chemistry and U.S. DOE Ames Laboratory, Iowa State University, Ames Iowa 50011, United States
| |
Collapse
|
98
|
Zhang X, Emge TJ, Hultzsch KC. Ein chiraler Phenoxyamin-Magnesium-Katalysator für die enantioselektive Hydroaminierung/Cyclisierung von Aminoalkenen und die intermolekulare Hydroaminierung von Vinylarenen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105079] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
99
|
Zhang X, Emge TJ, Hultzsch KC. A Chiral Phenoxyamine Magnesium Catalyst for the Enantioselective Hydroamination/Cyclization of Aminoalkenes and Intermolecular Hydroamination of Vinyl Arenes. Angew Chem Int Ed Engl 2011; 51:394-8. [DOI: 10.1002/anie.201105079] [Citation(s) in RCA: 124] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
100
|
Hangaly NK, Petrov AR, Rufanov KA, Harms K, Elfferding M, Sundermeyer J. Cyclopentadienylphosphazene (CpPN) Complexes of Rare-Earth Metals: Synthesis, Structural Characterization, and Hydroamination Catalysis. Organometallics 2011. [DOI: 10.1021/om200264n] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Noa K. Hangaly
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Alex R. Petrov
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Konstantin A. Rufanov
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
- Department of Chemistry, M.V. Lomonosov State University of Moscow, 119992, Moscow, Russia
| | - Klaus Harms
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Michael Elfferding
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie der Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032 Marburg, Germany
| |
Collapse
|