1
|
Thorat RA, Mandhar Y, Parganiha D, Patil KB, Singh V, Shakir B, Raju S, Kumar S. A Planar‐Chiral Palladium Complex Derived from a Weak Oxygen Donor
N,N
‐Diisopropyl Ferrocenecarboxamide Ligand. ChemistrySelect 2023. [DOI: 10.1002/slct.202203945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Raviraj Ananda Thorat
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Yogesh Mandhar
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Devendra Parganiha
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Khushbu Bindesh Patil
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Vikram Singh
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Batul Shakir
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Saravanan Raju
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| | - Sangit Kumar
- Department of Chemistry Indian Institute of Science Education and Research (IISER) Bhopal Bhopal Bypass Road Bhauri Bhopal 462 066 Madhya Pradesh India
| |
Collapse
|
2
|
Enantiopure Cyclometalated Rh(III) and Ir(III) Complexes Displaying Rigid Configuration at Metal Center: Design, Structures, Chiroptical Properties and Role of the Iodide Ligand. CHEMISTRY 2022. [DOI: 10.3390/chemistry4010014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Enantiopure N-heterocyclic carbene half-sandwich metal complexes of the general formula [Cp*M(C^C:)I] (M = Rh, Ir; C^C: = NI-NHC; NI-H = Naphthalimide; NHC = N-heterocyclic carbene) are reported. The rhodium compound was obtained as a single isomer displaying six membered metallacycle and was resolved on chiral column chromatography to the corresponding enantiomers (S)-[Cp*Rh(C^C:)I] (S)-2 and (R)-[Cp*Rh(C^C:)I] (R)-2. The iridium congener, however, furnishes a pair of regioisomers, which were resolved into (S)-[Cp*Ir(C^C:)I] (S)-3 and (R)-[Cp*Ir(C^C:)I] (R)-3 and (S)-[Cp*Ir(C^C:)I] (S)-4 and (R)-[Cp*Ir(C^C:)I] (R)-4. These regioisomers differ from each other, only by the size of the metallacycle; five-membered for 3 and six-membered for 4. The molecular structures of (S)-2 and (S)-4 are reported. Moreover, the chiroptical properties of these compounds are presented and discussed. These compounds display exceptional stable configurations at the metal center in solution with enantiomerization barrier ΔG≠ up to 124 kJ/mol. This is because the nature of the naphthalimide-NHC clamp ligand and the iodide ligand contribute to their configuration’s robustness. In contrast to related complexes reported in the literature, which are often labile in solution.
Collapse
|
3
|
Zippel C, Bartholomeyzik T, Friedmann C, Nieger M, Hassan Z, Bräse S. Regioselective
ortho
‐Palladation of [2.2]Paracyclophane Scaffolds: Accessing Planar and Central Chiral N,C‐Palladacycles. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Christoph Zippel
- Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Teresa Bartholomeyzik
- Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Christian Friedmann
- Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Martin Nieger
- Department of Chemistry University of Helsinki P. O. Box 55 00014 Helsinki Finland
| | - Zahid Hassan
- Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
| | - Stefan Bräse
- Institute of Organic Chemistry (IOC) Karlsruhe Institute of Technology (KIT) Fritz-Haber-Weg 6 76131 Karlsruhe Germany
- Institute of Biological and Chemical Systems – Functional Molecular Systems (IBCS-FMS) Karlsruhe Institute of Technology (KIT) Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| |
Collapse
|
4
|
Roque‐Ramires MA, Shen L, Le Lagadec R. Synthesis of Non‐Symmetric Ruthenium(II) POCOP Pincer Complexes and Their Bimetallic Derivatives by π‐Coordination of Arenophile Fragments. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Manuel A. Roque‐Ramires
- Instituto de Química, UNAM, Circuito Exterior s/n Ciudad Universitaria 04510 Ciudad de México Mexico
| | | | - Ronan Le Lagadec
- Instituto de Química, UNAM, Circuito Exterior s/n Ciudad Universitaria 04510 Ciudad de México Mexico
| |
Collapse
|
5
|
Abstract
Howard Flack was a driving force in the development of modern crystallography. Today “the Flack parameter” has entered into the common parlance of crystallography but his influence was far wider. This article provides an overview of his scientific output and a full bibliography.
Collapse
|
6
|
Yoshida K, Yasue R. <i>N</i>-Heterocyclic Carbene Ligands Having Planar Chiral Ferrocene Structure. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.28] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kazuhiro Yoshida
- Department of Chemistry, Graduate School of Science, Chiba University
| | | |
Collapse
|
7
|
Gair JJ, Haines BE, Filatov AS, Musaev DG, Lewis JC. Di-Palladium Complexes are Active Catalysts for Mono-N-Protected Amino Acid-Accelerated Enantioselective C–H Functionalization. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03887] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Joseph J. Gair
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Brandon E. Haines
- Department of Chemistry, Westmont College, Santa Barbara, California 93108, United States
| | - Alexander S. Filatov
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for Scientific Computation, Emory University, Atlanta, Georgia 30322, United States
| | - Jared C. Lewis
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| |
Collapse
|
8
|
Avello MG, Torre MC, Sierra MA, Gornitzka H, Hemmert C. Central (S) to Central (M=Ir, Rh) to Planar (Metallocene, M=Fe, Ru) Chirality Transfer Using Sulfoxide‐Substituted Mesoionic Carbene Ligands: Synthesis of Bimetallic Planar Chiral Metallocenes. Chemistry 2019; 25:13344-13353. [DOI: 10.1002/chem.201902102] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/24/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Marta G. Avello
- Instituto de Química Orgánica General Consejo Superior de Investigaciones Científicas (IQOG-CSIC) Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
| | - María C. Torre
- Instituto de Química Orgánica General Consejo Superior de Investigaciones Científicas (IQOG-CSIC) Juan de la Cierva 3 28006 Madrid Spain
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
| | - Miguel A. Sierra
- Centro de Investigación en Química Avanzada (ORFEO-CINQA) Universidad Complutense 28040 Madrid Spain
- Departamento de Química Orgánica I Facultad de Química Universidad Complutense 28040 Madrid Spain
| | | | | |
Collapse
|
9
|
Chiral (cyclopentadienone)iron complexes with a stereogenic plane as pre-catalysts for the asymmetric hydrogenation of polar double bonds. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.01.057] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
|
10
|
Arthurs RA, Hughes DL, Horton PN, Coles SJ, Richards CJ. Application of Transmetalation to the Synthesis of Planar Chiral and Chiral-at-Metal Iridacycles. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00905] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Ross A. Arthurs
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - David L. Hughes
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - Peter N. Horton
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Simon J. Coles
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, U.K
| | - Christopher J. Richards
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| |
Collapse
|
11
|
Yoshida K, Yasue R. Planar-Chiral Ferrocene-Based N-Heterocyclic Carbene Ligands. Chemistry 2018; 24:18575-18586. [PMID: 30277615 DOI: 10.1002/chem.201803903] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Indexed: 12/18/2022]
Abstract
In the last few decades, N-heterocyclic carbene (NHC) ligands, characterized by attractive features, have increased their presence in transition-metal catalysis. However, chiral NHC ligands still require further design enhancement to realize far more exciting synthetic applications. This review documents advances in chiral NHC ligands, focusing on planar-chiral ferrocene-based NHCs. As the basic shape of most classes of NHC rings is planar, it seems rational to employ a planar-chiral element in the design of chiral NHC ligands.
Collapse
Affiliation(s)
- Kazuhiro Yoshida
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan.,Molecular Chirality Research Center, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Risa Yasue
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| |
Collapse
|
12
|
Arthurs RA, Prior CC, Hughes DL, Oganesyan VS, Richards CJ. Enantiopure Planar Chiral and Chiral-at-Metal Iridacycles Derived from Bulky Cobalt Sandwich Complexes. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00495] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ross A. Arthurs
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - Christopher C. Prior
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - David L. Hughes
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - Vasily S. Oganesyan
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| | - Christopher J. Richards
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ, U.K
| |
Collapse
|
13
|
Fernández-Figueiras A, Lucio-Martínez F, Munín-Cruz P, Ortigueira JM, Polo-Ces P, Reigosa F, Pereira MT, Vila JM. From Chemical Serendipity to Translational Chemistry: New Findings in the Reactivity of Palladacycles. ChemistryOpen 2018; 7:754-763. [PMID: 30338200 PMCID: PMC6173371 DOI: 10.1002/open.201800036] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 02/04/2023] Open
Abstract
In the world of science, in particular the section concerning the field of chemistry, when the results encountered during the experiment do not meet our expectations, our shrewdness may play an important role to open up new unexplored fields that could be much more interesting than what we were seeking. In those cases, our research undergoes an unforeseen shift, delivering novel and challenging results that may altogether alter our point of view and our future work. We have then struck serendipity. Specifically, in our investigation linked to palladacycles we have found that the new trends in their reactivity, as well as in their structure, have been, in many cases, related to this experience, broadening our research scope within this field. Herein, we describe our most relevant findings, which have shed new light upon the reactivity of palladacycles, thus opening new routes that lead to novel unexpected structures.
Collapse
Affiliation(s)
- Adolfo Fernández-Figueiras
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Fátima Lucio-Martínez
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Paula Munín-Cruz
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Juan M Ortigueira
- Department of Inorganic Chemistry, Facultade de Ciencias Universidade de Santiago de Compostela 27002 Lugo Galicia Spain
| | - Paula Polo-Ces
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - Francisco Reigosa
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - M Teresa Pereira
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| | - José M Vila
- Department of Inorganic Chemistry, Facultade de Química Universidade de Santiago de Compostela 15782 Santiago de Compostela Galicia Spain
| |
Collapse
|
14
|
Gadhachanda VR, Eastman KJ, Wang Q, Phadke AS, Patel D, Yang W, Marlor CW, Deshpande M, Huang M, Wiles JA. Ferrocene-based inhibitors of hepatitis C virus replication that target NS5A with low picomolar in vitro antiviral activity. Bioorg Med Chem Lett 2018; 28:3463-3471. [PMID: 30290989 DOI: 10.1016/j.bmcl.2018.09.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/13/2018] [Accepted: 09/17/2018] [Indexed: 01/23/2023]
Abstract
An unprecedented series of organometallic HCV (hepatitis C virus) NS5A (nonstructural 5A protein) replication complex inhibitors that incorporates a 1,1'-ferrocenediyl scaffold was explored. This scaffold introduces the elements of linear flexibility and non-planar topology that are unconventional for this class of inhibitors. Data from 2-D NMR spectroscopic analyses of these complexes in solution support an anti (unstacked) arrangement of the pharmacophoric groups. Several complexes demonstrate single-digit picomolar in vitro activity in an HCV genotype-1b replicon system. One complex to arise from this investigation (10a) exhibits exceptional picomolar activity against HCV genotype 1a and 1b replicons, low hepatocellular cytotoxicity, and good pharmacokinetic properties in rat.
Collapse
Affiliation(s)
- Venkat R Gadhachanda
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Kyle J Eastman
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Qiuping Wang
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Avinash S Phadke
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Dharaben Patel
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Wengang Yang
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Christopher W Marlor
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Milind Deshpande
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Mingjun Huang
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States
| | - Jason A Wiles
- Achillion Pharmaceuticals, Inc., 300 George Street, New Haven, CT 06511, United States.
| |
Collapse
|
15
|
Marcos I, Ojea V, Vázquez-García D, Fernández JJ, Fernández A, López-Torres M, Lado J, Vila JM. Preparation and characterization of terdentate [C,N,N] acetophenone and acetylpyridine hydrazone platinacycles: a DFT insight into the reaction mechanism. Dalton Trans 2017; 46:16845-16860. [PMID: 29171854 DOI: 10.1039/c7dt03418k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of N-ortho-chlorophenyl-substituted acetylpyridine hydrazones (a and d) with K2[PtCl4] (n-butanol/water, 100 °C) gave mononuclear complexes 1a and 1d with the ligands as [N,N] bidentate. In contrast, the reaction of N-phenyl or N-meta-chlorophenyl hydrazones (b and c, respectively) under analogous reaction conditions gave the cycloplatinated species 2b and 2c with the ligand as [C,N,N] terdentate. The treatment of the mononuclear complexes 1a and 1d with NaOAc (n-butanol, 100 °C) gave the corresponding cycloplatinated complexes 2a and 2d. Acetophenone hydrazone platinacycle 2e was prepared in a similar fashion and its reaction with tertiary mono- and triphosphines gave mono- or trinuclear species depending on the reaction conditions. The X-ray crystal structures of some of these complexes showed interesting π-π slipped stacking interactions between metallacyclic rings which, according to NCI analyses, showed an aromatic character. With an aim to rationalize the different reactivities shown by acetylpyridine hydrazones and the precise role of the acetate anion, the energy profiles for the three main steps of cycloplatination (iminoplatinum complex formation, chelation and cyclometallation) have been determined by using the DFT (M06) methods. Calculations indicate that the cycloplatination of 1b proceeds via electrophilic substitution, involving the direct replacement of the chloride anion at the Pt(ii) centre with the N-phenyl moiety as the rate-determining step, to give an agostic intermediate 5b+ that, subsequently, leads to the elimination of a proton as hydrogen chloride. When present as an "external" base, acetate enters the coordination sphere around the Pt(ii) centre and facilitates hydrazone N-H deprotonation and electrophilic C-H activation through a dissociative route, leading to a Wheland-type σ-complex intermediate 9ac.
Collapse
Affiliation(s)
- Ismael Marcos
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Vicente Ojea
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Digna Vázquez-García
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Jesús J Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Alberto Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Margarita López-Torres
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Jorge Lado
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - José M Vila
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
| |
Collapse
|
16
|
Mishra SK, Suryaprakash N. Some new protocols for the assignment of absolute configuration by NMR spectroscopy using chiral solvating agents and CDAs. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
17
|
|
18
|
Nimmagadda SK, Mallojjala SC, Woztas L, Wheeler SE, Antilla JC. Enantioselective Synthesis of Chiral Oxime Ethers: Desymmetrization and Dynamic Kinetic Resolution of Substituted Cyclohexanones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sri Krishna Nimmagadda
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| | | | - Lukasz Woztas
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| | - Steven E. Wheeler
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
| | - Jon C. Antilla
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| |
Collapse
|
19
|
Nimmagadda SK, Mallojjala SC, Woztas L, Wheeler SE, Antilla JC. Enantioselective Synthesis of Chiral Oxime Ethers: Desymmetrization and Dynamic Kinetic Resolution of Substituted Cyclohexanones. Angew Chem Int Ed Engl 2017; 56:2454-2458. [DOI: 10.1002/anie.201611602] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Indexed: 01/25/2023]
Affiliation(s)
- Sri Krishna Nimmagadda
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| | | | - Lukasz Woztas
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| | - Steven E. Wheeler
- Department of Chemistry; Texas A&M University; College Station TX 77843 USA
| | - Jon C. Antilla
- Department of Chemistry; University of South Florida; 4202 East Fowler Avenue, CHE 205A Tampa FL 33620 USA
| |
Collapse
|
20
|
Arthurs RA, Ismail M, Prior CC, Oganesyan VS, Horton PN, Coles SJ, Richards CJ. Enantiopure Ferrocene-Based Planar-Chiral Iridacycles: Stereospecific Control of Iridium-Centred Chirality. Chemistry 2016; 22:3065-72. [DOI: 10.1002/chem.201504458] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Ross A. Arthurs
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Muhammad Ismail
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
- Department of Chemistry; Karakoram International University; University Road Gilgit- 15100 Pakistan
| | - Christopher C. Prior
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Vasily S. Oganesyan
- School of Chemistry; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
| | - Peter N. Horton
- EPSRC National Crystallography Service; School of Chemistry; University of Southampton; Highfield Southampton SO17 1BJ UK
| | - Simon J. Coles
- EPSRC National Crystallography Service; School of Chemistry; University of Southampton; Highfield Southampton SO17 1BJ UK
| | | |
Collapse
|
21
|
Naya L, Vázquez-García D, Fernández A, López-Torres M, Ojea V, Marcos I, Vila JM, Fernández JJ. Preparation of Imidazol-2-ylidene Carbene Palladacycles with Bi- and Tridentate Schiff Bases - Analyses of the Spectroscopic, Molecular Structure, and DFT Calculation Data. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
22
|
Akagawa K, Akiyama M, Kudo K. Peptide-Catalyzed Desymmetrization of an Achiral Ferrocenyl Compound To Induce Planar Chirality. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500428] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
23
|
Roy S, Pramanik S, Ghorui T, Pramanik K. Insight into luminescent bisazoaromatic CNN pincer palladacycle: synthesis, structure, electrochemistry and some catalytic applications in C–C coupling. RSC Adv 2015. [DOI: 10.1039/c4ra16584e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The 2-(phenylazo)azobenzene furnished novel palladacycles in excellent yield, which showed luminescence at rt and catalytic activity. The optoelectronic and electrochemical responses were substantiated with DFT and TDDFT.
Collapse
Affiliation(s)
- Sima Roy
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Shuvam Pramanik
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tapas Ghorui
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Kausikisankar Pramanik
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| |
Collapse
|
24
|
Naya L, Vázquez-García D, Fernández A, López-Torres M, Marcos I, Lenis OA, Pereira MT, Vila JM, Fernández JJ. Novel palladacycle N-heterocyclic carbene complexes with bidentate [C,N] and terdentate [C,N,N] and [C,N,O] Schiff bases. Synthesis, characterization and crystal structure analysis. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
25
|
Qian H, Yin Z, Zhang T, Yan S, Wang Q, Zhang C. Palladacycle from Cyclometalation of the Unsubstituted Cyclopentadienyl Ring in Ferrocene: Synthesis, Characterization, Theoretical Studies, and Application to Suzuki–Miyaura Reaction. Organometallics 2014. [DOI: 10.1021/om5008924] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hengyu Qian
- Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People’s Republic of China
| | - Zhigang Yin
- Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People’s Republic of China
| | - Tongyan Zhang
- Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People’s Republic of China
| | - Shihai Yan
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao 266109, People’s Republic of China
| | - Quanling Wang
- Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People’s Republic of China
| | - Chunxia Zhang
- Key Laboratory of Surface & Interface Science of Henan, School of Material & Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, People’s Republic of China
| |
Collapse
|
26
|
Sudheendran M, Eitel SH, Naumann S, Buchmeiser MR, Peters R. Heterogenization of ferrocene palladacycle catalysts on ROMP-derived monolithic supports and application to a Michael addition. NEW J CHEM 2014. [DOI: 10.1039/c4nj01253d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
27
|
Hellmuth T, Rieckhoff S, Weiss M, Dorst K, Frey W, Peters R. Cooperative Bimetallic Asymmetric Catalysis: Comparison of a Planar Chiral Ruthenocene Bis-Palladacycle to the Corresponding Ferrocene. ACS Catal 2014. [DOI: 10.1021/cs500393x] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Tina Hellmuth
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Stefan Rieckhoff
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Marcel Weiss
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Konstantin Dorst
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| |
Collapse
|
28
|
Shen C, Anger E, Srebro M, Vanthuyne N, Deol KK, Jefferson TD, Muller G, Gareth Williams JA, Toupet L, Roussel C, Autschbach J, Réau R, Crassous J. Straightforward access to mono- and bis-cycloplatinated helicenes that display circularly polarized phosphorescence using crystallization resolution methods. Chem Sci 2014; 5:1915-1927. [PMID: 24855556 DOI: 10.1039/c3sc53442a] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Enantiopure mono-cycloplatinated-[8]helicene and bis-cycloplatinated-[6]helicene derivatives were prepared through column chromatography combined with crystallization of diastereomeric complexes using a chiral ancillary sulfoxide ligand. The UV-visible spectra, circular dichroism, molar rotations, and (circularly polarized) luminescence activity of these new helical complexes have been examined in detail and analysed with the help of first-principles quantum-chemical calculations.
Collapse
Affiliation(s)
- Chengshuo Shen
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Emmanuel Anger
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Monika Srebro
- Faculty of Chemistry, Jagiellonian University, 30-060 Krakow, Poland
| | - Nicolas Vanthuyne
- Chirosciences, UMR 7313, Stéréochimie Dynamique et Chiralité, Aix-Marseille University, 13397 Marseille Cedex 20, France
| | - Kirandeep K Deol
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - Truman D Jefferson
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | - Gilles Muller
- Department of Chemistry, San José State University, San José, CA 95192-0101, USA
| | | | - Loïc Toupet
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Christian Roussel
- Chirosciences, UMR 7313, Stéréochimie Dynamique et Chiralité, Aix-Marseille University, 13397 Marseille Cedex 20, France
| | - Jochen Autschbach
- Department of Chemistry, University at Buffalo, State University of New York, Buffalo, NY 14260, USA
| | - Régis Réau
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| | - Jeanne Crassous
- Institut des Sciences Chimiques de Rennes, UMR 6226, Institut de Physique de Rennes, UMR 6251, Campus de Beaulieu, CNRS-Université de Rennes 1, 35042 Rennes Cedex, France
| |
Collapse
|
29
|
Kapdi AR. Organometallic aspects of transition-metal catalysed regioselective C–H bond functionalisation of arenes and heteroarenes. Dalton Trans 2014; 43:3021-34. [DOI: 10.1039/c3dt52737a] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
30
|
Cassar DJ, Ilyashenko G, Ismail M, Woods J, Hughes DL, Richards CJ. Enantioselective synthesis and application to the allylic imidate rearrangement of amine-coordinated palladacycle catalysts of cobalt sandwich complexes. Chemistry 2013; 19:17951-62. [PMID: 24264943 PMCID: PMC4517145 DOI: 10.1002/chem.201302922] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2013] [Indexed: 11/30/2022]
Abstract
The reaction of (η(5)-(N,N-dimethylaminomethyl)cyclopentadien-yl)(η(4)-tetraphenylcyclobutadiene)cobalt with sodium tetrachloropalladate and (R)-N-acetylphenylalanine gave planar chiral palladacycle di-μ-chloridebis[(η(5)-(Sp)-2-(N,N-dimethylaminomethyl)cyclopentadienyl,1-C,3'-N)(η(4)-tetraphenylcyclobutadiene)cobalt]dipalladium [(Sp )-Me2 -CAP-Cl] in 92% ee and 64% yield. Enantiopurity (>98% ee) was achieved by purification of the monomeric (R)-proline adducts and conversion back to the chloride dimer. Treatment with AgOAc gave (Sp)-Me2-CAP-OAc which was applied to asymmetric transcyclopalladation (up to 78% ee). The (R)-N-acetylphenylalanine mediated palladation methodology was applicable also to the corresponding N,N-diethyl (82% ee, 39% yield) and pyrrolidinyl (>98% ee, 43% yield) cobalt sandwich complexes. A combination of 5 mol % of the latter [(Sp)-Pyrr-CAP-Cl] and AgNO3 (3.8 equiv) is a catalyst for the allylic imidate rearrangement of an (E)-N-aryltrifluoroacetimidate (up to 83% ee), and this catalyst system is also applicable to the rearrangement of a range of (E)-trichloroacetimidates (up to 99% ee). This asymmetric efficiency combined with the simplicity of catalyst synthesis provides accessible solutions to the generation of non-racemic allylic amine derivatives.
Collapse
Affiliation(s)
- Doyle J Cassar
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich, NR4 7TJ (UK)
| | | | | | | | | | | |
Collapse
|
31
|
Paluch P, Kaźmierski S, Jeziorna A, Sniechowska J, Dabrowa K, Panek JJ, Jezierska-Mazzarello A, Jurczak J, Potrzebowski MJ. Influence of environmental humidity on organization and molecular dynamics of heteromacrocyclic assemblies. J Phys Chem B 2013; 117:14420-31. [PMID: 24168636 DOI: 10.1021/jp406308a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1D and 2D NMR study, Car-Parrinello molecular dynamics, as well as classical molecular dynamics were employed to investigate three derivatives of benzodiazacoronands (achiral compounds which are able to form single crystals with a planar chirality) with intention to explain all subtle effects important during their preorganization, the step anticipating formation of crystals. The experimental study was carried out in two solvents: chloroform and DMSO either containing traces of water (commercial samples) or carefully dried over molecular sieves. Both methods revealed that environmental humidity has a dramatic influence on topology of solute-solvent interactions. Damping of the macrocycle dynamics by its diverse types of interactions with water molecules was shown by computational means. In the most spectacular experiment, we have proved that in chloroform-d during the low temperature measurements traces of water dramatically change the spectral pattern, leading to isochronous NMR signals of the AB spin system of benzodiazacoronand. The temperature of isochronous point (TIP) strongly depends on the benzodiazacoronand/water (BW) ratio. This observation opens a pathway to a new strategy based on variable temperature crystallizations and fitting of BW ratio with hope to optimize conditions for formation of chiral crystals.
Collapse
Affiliation(s)
- Piotr Paluch
- Polish Academy of Sciences, Centre of Molecular and Macromolecular Studies , Sienkiewicza 112, 90-363 Lodz, Poland
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Werlé C, Bailly C, Karmazin-Brelot L, Le Goff XF, Ricard L, Djukic JP. Hemichelation, a Way To Stabilize Electron-Unsaturated Complexes: The Case of T-Shaped Pd and Pt Metallacycles. J Am Chem Soc 2013; 135:17839-52. [DOI: 10.1021/ja4076327] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Christophe Werlé
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| | - Corinne Bailly
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| | - Lydia Karmazin-Brelot
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| | - Xavier-Frédéric Le Goff
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| | - Louis Ricard
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| | - Jean-Pierre Djukic
- Institut de Chimie de Strasbourg, Université de Strasbourg, CNRS, 4 rue Blaise Pascal, F-67000 Strasbourg, France
- Département de Chimie, Ecole Polytechnique, CNRS, Route de Saclay, F-91128 Palaiseau cedex, France
| |
Collapse
|
33
|
Affiliation(s)
- Dieter Schaarschmidt
- Inorganic
Chemistry, Institute of Chemistry, Faculty of Sciences, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| | - Heinrich Lang
- Inorganic
Chemistry, Institute of Chemistry, Faculty of Sciences, Technische Universität Chemnitz, 09107 Chemnitz, Germany
| |
Collapse
|
34
|
Chen J, Lalancette RA, Jäkle F. Stereoselective Ortho Borylation of Pyridylferrocenes. Organometallics 2013. [DOI: 10.1021/om400426g] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiawei Chen
- Department
of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department
of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department
of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| |
Collapse
|
35
|
Mercier A, Wagschal S, Guénée L, Besnard C, Kündig EP. Regioselective Cyclometalation of Planar Chiral Pyridine and Oxazoline Derivatives: peri- versus ortho-C–H Functionalization. Organometallics 2013. [DOI: 10.1021/om4004175] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Audrey Mercier
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - Simon Wagschal
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - Laure Guénée
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - Céline Besnard
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - E. Peter Kündig
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| |
Collapse
|
36
|
Weber M, Klein JEMN, Miehlich B, Frey W, Peters R. Monomeric Ferrocene Bis-Imidazoline Bis-Palladacycles: Variation of Pd–Pd Distances by an Interplay of Metallophilic, Dispersive, and Coulombic Interactions. Organometallics 2013. [DOI: 10.1021/om400360d] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Manuel Weber
- Institut für
Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569
Stuttgart, Germany
| | - Johannes E. M. N. Klein
- Institut für
Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569
Stuttgart, Germany
| | - Burkhard Miehlich
- Institut für
Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569
Stuttgart, Germany
| | - Wolfgang Frey
- Institut für
Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569
Stuttgart, Germany
| | - René Peters
- Institut für
Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, D-70569
Stuttgart, Germany
| |
Collapse
|
37
|
Espinosa-Jalapa NÁ, Hernández-Ortega S, Le Goff XF, Morales-Morales D, Djukic JP, Le Lagadec R. Coordination of 12-Electron Organometallic Fragments to the Arene Ring of Nonsymmetric Group 10 POCOP Pincer Complexes. Organometallics 2013. [DOI: 10.1021/om400147x] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noel Ángel Espinosa-Jalapa
- Instituto de Quı́mica, Universidad Nacional Autónoma de México, Circuito
Exterior s/n, Ciudad Universitaria, 04510 México D. F., Mexico
| | - Simón Hernández-Ortega
- Instituto de Quı́mica, Universidad Nacional Autónoma de México, Circuito
Exterior s/n, Ciudad Universitaria, 04510 México D. F., Mexico
| | - Xavier-Fredéric Le Goff
- Laboratoire Hetéro-élément et Coordination, Ecole Polytechnique, Route de Saclay,
91128 Palaiseau Cedex, France
| | - David Morales-Morales
- Instituto de Quı́mica, Universidad Nacional Autónoma de México, Circuito
Exterior s/n, Ciudad Universitaria, 04510 México D. F., Mexico
| | - Jean-Pierre Djukic
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Université de Strasbourg, 4 rue Blaise Pascal,
67000 Strasbourg, France
| | - Ronan Le Lagadec
- Instituto de Quı́mica, Universidad Nacional Autónoma de México, Circuito
Exterior s/n, Ciudad Universitaria, 04510 México D. F., Mexico
| |
Collapse
|
38
|
Weber M, Frey W, Peters R. Catalytic Asymmetric Synthesis of Spirocyclic Azlactones by a Double Michael-Addition Approach. Chemistry 2013; 19:8342-51. [DOI: 10.1002/chem.201300224] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Indexed: 12/12/2022]
|
39
|
Iali W, La Paglia F, Le Goff XF, Sredojević D, Pfeffer M, Djukic JP. Room temperature tandem hydroamination and hydrosilation/protodesilation catalysis by a tricarbonylchromium-bound iridacycle. Chem Commun (Camb) 2013; 48:10310-2. [PMID: 22982813 DOI: 10.1039/c2cc35520e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chromiumtricarbonyl-bound iridacycle displays novel catalytic virtues for the conversion of terminal aromatic alkynes into racemic N-phenyl, 1-arylethylamines by tandem hydro-amination and hydrosilation/protodesilation reactions under mild "one pot" conditions.
Collapse
Affiliation(s)
- Wissam Iali
- Institut de Chimie de Strasbourg, UMR 7177, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | | | | | | | | | | |
Collapse
|
40
|
Fuchter MJ, Judge DK, Weimar M, White AJP. Stoichiometric C–H arylation of tricarbonyl(arene)chromium complexes bearing pyridine directing groups. Dalton Trans 2013; 42:5615-8. [DOI: 10.1039/c3dt50187f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
41
|
RETRACTED: Reaction of a bidentate ligands (4,4′-dimethyl 2,2′-bipyridine ) with planar-chiral chloro-bridged ruthenium: Synthesis of cis-dicarbonyl[4,4′-dimethyl-2,2′-bipyridine- κO1,κO2]{2-[tricarbonyl( η6-phenylene- κC1)chromium]pyridine- κN}ruthenium hexafluorophosphate. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
42
|
Weber M, Jautze S, Frey W, Peters R. Bispalladacycle-Catalyzed Michael Addition of In Situ Formed Azlactones to Enones. Chemistry 2012; 18:14792-804. [DOI: 10.1002/chem.201202455] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Indexed: 01/05/2023]
|
43
|
Weiss M, Frey W, Peters R. Asymmetric Synthesis of Heterobimetallic Planar Chiral Ferrocene Pallada-/Platinacycles and Their Application to Enantioselective Aza-Claisen Rearrangements. Organometallics 2012. [DOI: 10.1021/om300600v] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Marcel Weiss
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| | - René Peters
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring
55, D-70569 Stuttgart, Germany
| |
Collapse
|
44
|
Goto H, Sudoh M, Kawamoto K, Sugimoto H, Inoue S. Isocyanurates with Planar Chirality: Design, Optical Resolution, and Isomerization. Chirality 2012; 24:867-78. [DOI: 10.1002/chir.22093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Accepted: 06/06/2012] [Indexed: 11/09/2022]
Affiliation(s)
- Hidetoshi Goto
- Department of Industrial Chemistry, Faculty of Engineering; Tokyo University of Science; Tokyo Japan
| | - Masanao Sudoh
- Department of Industrial Chemistry, Faculty of Engineering; Tokyo University of Science; Tokyo Japan
| | - Keiko Kawamoto
- Department of Industrial Chemistry, Faculty of Engineering; Tokyo University of Science; Tokyo Japan
| | - Hiroshi Sugimoto
- Department of Industrial Chemistry, Faculty of Engineering; Tokyo University of Science; Tokyo Japan
| | - Shohei Inoue
- Department of Industrial Chemistry, Faculty of Engineering; Tokyo University of Science; Tokyo Japan
| |
Collapse
|
45
|
Weber M, Frey W, Peters R. Catalytic Asymmetric Synthesis of Functionalized α,α-Disubstituted α-Amino Acid Derivatives from Racemic Unprotected α-Amino Acids via in-situ Generated Azlactones. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200085] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Djukic JP, Iali W, Pfeffer M, Le Goff XF. Synthesis of Planar Chiral Iridacycles by Cationic Metal π-Coordination: Facial Selectivity, and Conformational and Stereochemical Consequences. Chemistry 2012; 18:6063-78. [DOI: 10.1002/chem.201103577] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Indexed: 11/07/2022]
|
47
|
Sreeshailam A, Dayaker G, Ramana DV, Chevallier F, Roisnel T, Komagawa S, Takita R, Uchiyama M, Krishna PR, Mongin F. Synthesis of both enantiomers of ferrocene[1,2-c]1H-quinolin-2-one by diastereoselective deproto-zincation of sugar-derived ferrocene esters. RSC Adv 2012. [DOI: 10.1039/c2ra21045b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
48
|
Arae S, Ogasawara M. Catalytic Asymmetric Synthesis of Planar-Chiral Transition-Metal Complexes. J SYN ORG CHEM JPN 2012. [DOI: 10.5059/yukigoseikyokaishi.70.593] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
49
|
Grande L, Serrano E, Cuesta L, Urriolabeitia EP. Regioselective CH Bond Activation on Stabilized Nitrogen Ylides Promoted by Pd(II) Complexes: Scope and Limitations. Organometallics 2011. [DOI: 10.1021/om201001c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Loreto Grande
- Instituto
de Síntesis Química y Catálisis
Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Elena Serrano
- Instituto
de Síntesis Química y Catálisis
Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luciano Cuesta
- Instituto
de Síntesis Química y Catálisis
Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Esteban P. Urriolabeitia
- Instituto
de Síntesis Química y Catálisis
Homogénea, CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| |
Collapse
|
50
|
Djukic JP, Michon C, Pfeffer M, Gruber-Kyritsakas N, de Cian A. Adventitious formation of a new oxopentadienyl Mn(I) tricarbonyl complex: Structural study and bonding investigation of (η5-CH2C(Fc)CHC(Fc)O)Mn(CO)3. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|