1
|
Affiliation(s)
| | - Brian R. James
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
2
|
Yaragorla S, Latha DS, Rajesh P. Calcium‐Catalyzed Intramolecular Hydroamination‐Deacylation Reaction of in situ formed
β
‐Amino Allenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| | - Dandugula Sneha Latha
- School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| | - Pallava Rajesh
- School of Chemistry University of Hyderabad Prof. C. R. Rao Road, Gachibowli Hyderabad 500046 India
| |
Collapse
|
3
|
Synthesis of C3-Symmetric Cinchona-Based Organocatalysts and Their Applications in Asymmetric Michael and Friedel–Crafts Reactions. Symmetry (Basel) 2021. [DOI: 10.3390/sym13030521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this work, anchoring of cinchona derivatives to trifunctional cores (hub approach) was demonstrated to obtain size-enlarged organocatalysts. By modifying the cinchona skeleton in different positions, we prepared four C3-symmetric size-enlarged cinchona derivatives (hub-cinchonas), which were tested as organocatalysts and their catalytic activities were compared with the parent cinchona (hydroquinine) catalyst. We showed that in the hydroxyalkylation reaction of indole, hydroquinine provides good enantioselectivities (up to 73% ee), while the four new size-enlarged derivatives resulted in significantly lower values (up to 29% ee) in this reaction. Anchoring cinchonas to trifunctional cores was found to facilitate nanofiltration-supported catalyst recovery using the PolarClean alternative solvent. The C3-symmetric size-enlarged organocatalysts were completely rejected by all the applied membranes, whereas the separation of hydroquinine was found to be insufficient when using organic solvent nanofiltration. Furthermore, the asymmetric catalysis was successfully demonstrated in the case of the Michael reaction of 1,3-diketones and trans-β-nitrostyrene using Hub3-cinchona (up to 96% ee) as a result of the positive effect of the C3-symmetric structure using a bulkier substrate. This equates to an increased selectivity of the catalyst in comparison to hydroquinine in the latter Michael reaction.
Collapse
|
4
|
Abstract
This review summarizes the recent achievements of dinuclear gold-catalyzed redox coupling, asymmetric catalysis and photocatalysis. The dinuclear gold catalysts show a better catalytic performance than the mononuclear gold catalysts in certain cases.
Collapse
Affiliation(s)
- Wenliang Wang
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Cheng-Long Ji
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Kai Liu
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Chuan-Gang Zhao
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Weipeng Li
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry
- Jiangsu Key Laboratory of Advanced Organic Materials
- Chemistry and Biomedicine Innovation Center (ChemBIC)
- School of Chemistry and Chemical Engineering
- Nanjing University
| |
Collapse
|
5
|
Tendyck JC, Klöcker H, Schürmann L, Würthwein EU, Hepp A, Layh M, Uhl W. Aspects of Phosphaallene Chemistry: Heat-Induced Formation of 1,2-Dihydrophosphetes by Intramolecular Nucleophilic Aromatic Substitution and Photochemical Generation of Tricyclic Phosphiranes. J Org Chem 2020; 85:14315-14332. [PMID: 32022561 DOI: 10.1021/acs.joc.9b03056] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
3H-Phosphaallenes are accessible on a new and facile route and show a fascinating chemical behavior. The thermally induced rearrangement of Mes*P═C═C(H)R' (R' = tBu, Ad) afforded by C-H activation, isobutene elimination, and C-C and P-H bond formation bicyclic 1-benzo-dihydrophosphetes (2) with PC3 heterocycles. DFT calculations suggest a mechanism with intramolecular nucleophilic aromatic substitution and replacement of an alkyl group by the nucleophilic α-C atom of the phosphaallene. These bicycles formed W(CO)5 complexes (3) or afforded 1,2-dihydrophosphetes with P-bound alkenyl groups by catalyst-free hydrophosphination of alkynes (4 and 5). The resulting bulky phosphines formed complexes with IrCp*Cl2, RuCl2, AuCl, or CuO3SCF3. The Ru atom is coordinated by the P atom and a phenyl group. Irradiation of TripP═C═C(H)tBu led by the insertion of the central C atom of the P═C═C group into the α-C-H bond of an iPr substituent and by C-C and P-C bond formation to a new isomer of phosphaallenes, 10, which features a strained PC2 heterocycle. It formed adducts with M(CO)5 (M = Cr, Mo, W) and AuCl and reacted with SO2Cl2 by cleavage of one of the phosphirane P-C bonds to yield PC4 or PC5 heterocycles. Hydrolysis yielded a PC5 compound with a P(O)Cl group.
Collapse
Affiliation(s)
- Jonas C Tendyck
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Hans Klöcker
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Lina Schürmann
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Ernst-Ulrich Würthwein
- Organisch-chemisches Institut and Center for Multiscale Theory and Computation (CMTC), Universität Münster, Corrensstrasse 40, D-48149 Münster, Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, D-48149 Münster, Germany
| |
Collapse
|
6
|
Straube A, Coburger P, Dütsch L, Hey-Hawkins E. Triple the fun: tris(ferrocenyl)arene-based gold(i) complexes for redox-switchable catalysis. Chem Sci 2020; 11:10657-10668. [PMID: 34094320 PMCID: PMC8162263 DOI: 10.1039/d0sc03604h] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The modular syntheses of C3-symmetric tris(ferrocenyl)arene-based tris-phosphanes and their homotrinuclear gold(i) complexes are reported. Choosing the arene core allows fine-tuning of the exact oxidation potentials and thus tailoring of the electrochemical response. The tris[chloridogold(i)] complexes were investigated in the catalytic ring-closing isomerisation of N-(2-propyn-1-yl)benzamide, showing cooperative behaviour vs. a mononuclear chloridogold(i) complex. Adding one, two, or three equivalents of 1,1′-diacetylferrocenium[tetrakis(perfluoro-tert-butoxy)aluminate] as an oxidant during the catalytic reaction (in situ) resulted in a distinct, stepwise influence on the resulting catalytic rates. Isolation of the oxidised species is possible, and using them as (pre-)catalysts (ex situ oxidation) confirmed the activity trend. Proving the intactness of the P–Au–Cl motif during oxidation, the tri-oxidised benzene-based complex has been structurally characterised. Trinuclear gold(i) complexes of C3-symmetric tris(ferrocenyl)arene-based tris-phosphanes with four accessible oxidation states catalyse the ring-closing isomerisation of N-(2-propyn-1-yl)benzamide with different rates depending on their redox state.![]()
Collapse
Affiliation(s)
- Axel Straube
- Institute of Inorganic Chemistry, Universität Leipzig Johannisallee 29 D-04103 Leipzig Germany https://anorganik.chemie.unileipzig.de/de/anorganik/ak-hey-hawkins/
| | - Peter Coburger
- Institute of Inorganic Chemistry, Universität Leipzig Johannisallee 29 D-04103 Leipzig Germany https://anorganik.chemie.unileipzig.de/de/anorganik/ak-hey-hawkins/
| | - Luis Dütsch
- Institute of Inorganic Chemistry, Universität Regensburg Universitätsstr. 31 D-93053 Regensburg Germany
| | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Universität Leipzig Johannisallee 29 D-04103 Leipzig Germany https://anorganik.chemie.unileipzig.de/de/anorganik/ak-hey-hawkins/
| |
Collapse
|
7
|
Johnson A, Gimeno MC. Yldiide Ligands as Building Blocks for Polynuclear Coinage Metal Complexes: Metal Squares, Triangles and Chains. Chemistry 2020; 26:11256-11265. [PMID: 32216131 DOI: 10.1002/chem.202001022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Indexed: 01/16/2023]
Abstract
Yldiides have unique electronic properties and donor abilities, but as ligands in transition metal complexes they are scarcely represented in the literature. Here, the controlled synthesis of a series of polynuclear gold yldiide complexes derived from triphenyl(cyanomethyl)phosphonium bromide, [Ph3 PCH2 CN]Br, under mild conditions is described. Anionic dinuclear NBu4 [(AuX)2 {C(CN)PPh3 }] (X=Cl, C6 F5 ) or trinuclear derivatives NBu4 [Au3 X2 {C(CN)PPh3 }] bearing terminal chloride or pentafluorophenyl groups and bridging yldiide ligands have been prepared. These compounds evolve in solution giving rise to the formation of an unprecedented tetrameric gold cluster, [Au4 {C(CN)PPh3 }4 ], by the loss of the gold complex NBu4 [AuX2 ]. This gold cluster can also be prepared in high yield by a transmetalation reaction from the analogous tetrameric silver cluster, and two geometric isomers have been characterised, their formation dependent on the synthetic route. The triphenylphosphonium cyanomethyldiide ligand has also been used to build different dinuclear and trinuclear cationic complexes bearing phosphine or diphosphine ancillary ligands and bridging yldiide moieties. Further coordination through the cyano group of the yldiide ligand gives heterometallic trinuclear or pentanuclear derivatives. Structural characterisation of many of these compounds reveals the presence of complex molecular systems stabilised by gold⋅⋅⋅gold interactions and bridging yldiide ligands.
Collapse
Affiliation(s)
- Alice Johnson
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - M Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, C/ Pedro Cerbuna 12, 50009, Zaragoza, Spain
| |
Collapse
|
8
|
Alyabyev SB, Beletskaya IP. Gold as a catalyst. Part III. Addition to double bonds. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
9
|
Pfeil M, Engesser TA, Koch A, Junge J, Krahmer J, Näther C, Tuczek F. Oligodentate Phosphine Ligands with Phospholane End Groups: New Synthetic Access and Application to Molybdenum‐Based Synthetic Nitrogen Fixation. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mareike Pfeil
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Tobias A. Engesser
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Alexander Koch
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Jannik Junge
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Jan Krahmer
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Christian Näther
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| | - Felix Tuczek
- Institute of Inorganic Chemistry Christian‐Albrechts University Kiel Max‐Eyth‐Strasse 2 24118 Kiel Germany
| |
Collapse
|
10
|
Berthold D, Geissler AGA, Giofré S, Breit B. Rhodium‐Catalyzed Asymmetric Intramolecular Hydroamination of Allenes. Angew Chem Int Ed Engl 2019; 58:9994-9997. [DOI: 10.1002/anie.201904833] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Dino Berthold
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Arne G. A. Geissler
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Sabrina Giofré
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
11
|
Berthold D, Geissler AGA, Giofré S, Breit B. Rhodium‐Catalyzed Asymmetric Intramolecular Hydroamination of Allenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904833] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Dino Berthold
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Arne G. A. Geissler
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Sabrina Giofré
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische ChemieAlbert-Ludwigs-Universität Freiburg Albertstr. 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
12
|
Verma SK, Ansari SN, Kumari P, Mobin SM. Click Reaction Driven, Highly Fluorescent Dinuclear Organogold(I) Complex Exhibits a Dual Role: A Rare Au···H Interaction and an Antiproliferative Agent. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00291] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
13
|
Wang H, Guo C. Enantioselective γ‐Addition of Pyrazole and Imidazole Heterocycles to Allenoates Catalyzed by Chiral Phosphine. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haiyang Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230026 China
| |
Collapse
|
14
|
Wang H, Guo C. Enantioselective γ‐Addition of Pyrazole and Imidazole Heterocycles to Allenoates Catalyzed by Chiral Phosphine. Angew Chem Int Ed Engl 2019; 58:2854-2858. [DOI: 10.1002/anie.201813381] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/28/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Haiyang Wang
- Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230026 China
| | - Chang Guo
- Hefei National Laboratory for Physical Sciences at the MicroscaleUniversity of Science and Technology of China Hefei 230026 China
| |
Collapse
|
15
|
Abstract
Interest in homogeneous gold catalysis has undergone a marked increase. As strong yet air- and moisture-tolerant π-acids, cationic gold(i) complexes have been shown to catalyze diverse transformations of alkenes, alkynes and allenes, opening new opportunities for chemical synthesis. The development of efficient asymmetric variants is required in order to take full advantage of the preparative potential of these transformations. During the last few years, the chemical community has achieved tremendous success in the area. This review highlights the updated progress (2011-2015) in enantioselective gold catalysis. The discussion is classified according to the π-bonds activated by gold(i), in an order of alkynes, allenes and alkenes. Other gold activation modes, such as σ-Lewis acid catalyzed reactions and transformations of diazo compounds are also discussed.
Collapse
Affiliation(s)
- Weiwei Zi
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| | - F Dean Toste
- Department of Chemistry, University of California, Berkeley, CA 94720, USA.
| |
Collapse
|
16
|
|
17
|
Mishra V, Raghuvanshi A, Saini AK, Mobin SM. Anthracene derived dinuclear gold(I) diacetylide complexes: Synthesis, photophysical properties and supramolecular interactions. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.04.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
18
|
Haydl AM, Hilpert LJ, Breit B. Regioconvergent and Enantioselective Rhodium-Catalyzed Hydroamination of Internal and Terminal Alkynes: A Highly Flexible Access to Chiral Pyrazoles. Chemistry 2016; 22:6547-51. [DOI: 10.1002/chem.201601198] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Alexander M. Haydl
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Lukas J. Hilpert
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| | - Bernhard Breit
- Institut für Organische Chemie; Albert-Ludwigs-Universität Freiburg; Albertstrasse 21 79104 Freiburg im Breisgau Germany
| |
Collapse
|
19
|
Roth T, Wadepohl H, Gade LH. Cationic BPI‐Gold(III) Complexes: Controlling Ligating and Nonligating Anions. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Torsten Roth
- Anorganisch‐Chemisches Institut, Universität Heidelberg Im Neuenheimer Feld 270, 69120 Heidelberg, Germany, http://www.gade.uni‐hd.de/
| | - Hubert Wadepohl
- Anorganisch‐Chemisches Institut, Universität Heidelberg Im Neuenheimer Feld 270, 69120 Heidelberg, Germany, http://www.gade.uni‐hd.de/
| | - Lutz H. Gade
- Anorganisch‐Chemisches Institut, Universität Heidelberg Im Neuenheimer Feld 270, 69120 Heidelberg, Germany, http://www.gade.uni‐hd.de/
| |
Collapse
|
20
|
Phanopoulos A, Long NJ, Miller PW. Triphosphine Ligands: Coordination Chemistry and Recent Catalytic Applications. THE CHEMICAL BOND III 2016. [DOI: 10.1007/430_2015_211] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
21
|
Selective formation of a C3-symmetric P-stereogenic tris(phosphine) via platinum-catalyzed asymmetric alkylation of a tris(secondary phosphine). ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.tetasy.2015.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
22
|
Gold-Catalyzed Synthesis of Nitrogen Heterocyclic Compounds via Hydroamination Reactions. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/7081_2015_5001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
23
|
|
24
|
Ranieri B, Escofet I, Echavarren AM. Anatomy of gold catalysts: facts and myths. Org Biomol Chem 2015; 13:7103-18. [PMID: 26055272 PMCID: PMC4479959 DOI: 10.1039/c5ob00736d] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 05/19/2015] [Indexed: 12/23/2022]
Abstract
This review article covers the main types of gold(i) complexes used as precatalysts under homogeneous conditions in organic synthesis and discusses the different ways of catalyst activation as well as ligand, silver, and anion effects.
Collapse
Affiliation(s)
- Beatrice Ranieri
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Antonio M. Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
- Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·li Domingo s/n , 43007 Tarragona , Spain
| |
Collapse
|
25
|
Haydl AM, Xu K, Breit B. Regio- and Enantioselective Synthesis of N-Substituted Pyrazoles by Rhodium-Catalyzed Asymmetric Addition to Allenes. Angew Chem Int Ed Engl 2015; 54:7149-53. [DOI: 10.1002/anie.201501758] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Indexed: 01/06/2023]
|
26
|
Haydl AM, Xu K, Breit B. Regio- and Enantioselective Synthesis of N-Substituted Pyrazoles by Rhodium-Catalyzed Asymmetric Addition to Allenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501758] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
27
|
Phanopoulos A, Long N, Miller P. The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphos Ph Complexes. J Vis Exp 2015:52689. [PMID: 25938678 PMCID: PMC4541562 DOI: 10.3791/52689] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Herein we report the synthesis of a tridentate phosphine ligand N(CH2PPh2)3 (N-triphos(Ph)) (1) via a phosphorus based Mannich reaction of the hydroxylmethylene phosphine precursor with ammonia in methanol under a nitrogen atmosphere. The N-triphos(Ph) ligand precipitates from the solution after approximately 1 hr of reflux and can be isolated analytically pure via simple cannula filtration procedure under nitrogen. Reaction of the N-triphos(Ph) ligand with [Ru3(CO)12] under reflux affords a deep red solution that show evolution of CO gas on ligand complexation. Orange crystals of the complex [Ru(CO)2{N(CH2PPh2)3}-κ(3)P] (2) were isolated on cooling to RT. The (31)P{(1)H} NMR spectrum showed a characteristic single peak at lower frequency compared to the free ligand. Reaction of a toluene solution of complex 2 with oxygen resulted in the instantaneous precipitation of the carbonate complex [Ru(CO3)(CO){N(CH2PPh2)3}-κ(3)P] (3) as an air stable orange solid. Subsequent hydrogenation of 3 under 15 bar of hydrogen in a high-pressure reactor gave the dihydride complex [RuH2(CO){N(CH2PPh2)3}-κ(3)P] (4), which was fully characterized by X-ray crystallography and NMR spectroscopy. Complexes 3 and 4 are potentially useful catalyst precursors for a range of hydrogenation reactions, including biomass-derived products such as levulinic acid (LA). Complex 4 was found to cleanly react with LA in the presence of the proton source additive NH4PF6 to give [Ru(CO){N(CH2PPh2)3}-κ(3)P{CH3CO(CH2)2CO2H}-κ(2)O](PF6) (6).
Collapse
|
28
|
Huang L, Arndt M, Gooßen K, Heydt H, Gooßen LJ. Late Transition Metal-Catalyzed Hydroamination and Hydroamidation. Chem Rev 2015; 115:2596-697. [DOI: 10.1021/cr300389u] [Citation(s) in RCA: 739] [Impact Index Per Article: 82.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Liangbin Huang
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Matthias Arndt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Käthe Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Heinrich Heydt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Lukas J. Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| |
Collapse
|
29
|
Brill M, Nolan SP. Chiral Carbophilic Gold Lewis Acid Complexes in Enantioselective Catalysis. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
30
|
Rhodium-Catalyzed Chemo-, Regio-, and Enantioselective Addition of 2-Pyridones to Terminal Allenes. Angew Chem Int Ed Engl 2014; 53:13780-4. [DOI: 10.1002/anie.201407935] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Indexed: 11/07/2022]
|
31
|
Li C, Kähny M, Breit B. Rhodium-Catalyzed Chemo-, Regio-, and Enantioselective Addition of 2-Pyridones to Terminal Allenes. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201407935] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
32
|
|
33
|
Streitberger M, Schmied A, Hey-Hawkins E. Selective formation of gold(I) bis-phospholane macrocycles, polymeric chains, and nanotubes. Inorg Chem 2014; 53:6794-804. [PMID: 24945973 DOI: 10.1021/ic5006055] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A series of highly flexible bis-phospholane ligands 3a-g with 5-11 methylene groups in the backbone was synthesized and fully characterized by mass spectrometry and NMR ((1)H, (13)C, (31)P) and IR spectroscopy. Gold bis-phospholane macrocycles containing 16 ([Au2Cl2(μ-3a)2], 4), 20 ([Au2Cl2(μ-3c)2], 5), 24 ([Au2Cl(μ-3e)2]Cl, 6), and 28 ([Au2Cl2(μ-3g)2], 7) atoms in the ring were obtained in one step from [AuCl(tht)] (tht = tetrahydrothiophene) and 3a,c,e,g in excellent yield. In addition, three polymers resulting from aurophilic interactions, i.e., zigzag chains in [Au2Cl2(μ-3b)]x (8) and nanotubes in [Au2Cl2(μ-3d)]x (9) and [Au2Cl2(μ-3f)]x (10), with Au···Au distances of 309.41(2), 330.24(6), and 335.82(3) pm, respectively, were obtained. Halide abstraction of 4-7 with AgBF4 led to macrocycles [Au2(μ-3a)2](BF4)2 (11), [Au2(μ-3c)2](BF4)2 (12), [Au2(μ-3e)2](BF4)2 (13), and [Au2(μ-3g)2](BF4)2 (14). In 12, the monomers are connected by strong aurophilic interactions (Au···Au 296.57(1) pm) in the solid state with formation of a polymeric chain. All complexes were fully characterized by NMR ((1)H, (13)C, (31)P) and IR spectroscopy, mass spectrometry, and X-ray diffraction.
Collapse
Affiliation(s)
- Markus Streitberger
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Universität Leipzig , Johannisallee 29, 04103 Leipzig, Germany
| | | | | |
Collapse
|
34
|
Serrano-Becerra JM, Maier AFG, González-Gallardo S, Moos E, Kaub C, Gaffga M, Niedner-Schatteburg G, Roesky PW, Breher F, Paradies J. Mono- vs. Dinuclear Gold-Catalyzed Intermolecular Hydroamidation. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402068] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
35
|
Phanopoulos A, Brown NJ, White AJP, Long NJ, Miller PW. Synthesis, Characterization, and Reactivity of Ruthenium Hydride Complexes of N-Centered Triphosphine Ligands. Inorg Chem 2014; 53:3742-52. [DOI: 10.1021/ic500030k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Andreas Phanopoulos
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Neil J. Brown
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Nicholas J. Long
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Philip W. Miller
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| |
Collapse
|
36
|
Sun YW, Xu Q, Shi M. Synthesis of axially chiral gold complexes and their applications in asymmetric catalyses. Beilstein J Org Chem 2013; 9:2224-32. [PMID: 24204435 PMCID: PMC3817475 DOI: 10.3762/bjoc.9.261] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 09/27/2013] [Indexed: 12/02/2022] Open
Abstract
Several novel chiral N-heterocyclic carbene and phosphine ligands were prepared from (S)-BINOL. Moreover, their ligated Au complexes were also successfully synthesized and characterized by X-ray crystal diffraction. A weak gold-π interaction between the Au atom and the aromatic ring in these gold complexes was identified. Furthermore, we confirmed the formation of a pair of diastereomeric isomers in NHC gold complexes bearing an axially chiral binaphthyl moiety derived from the hindered rotation around C–C and C–N bonds. In the asymmetric intramolecular hydroamination reaction most of these chiral Au(I) complexes showed good catalytic activities towards olefins tethered with a NHTs functional group to give the corresponding product in moderate yields and up to 29% ee.
Collapse
Affiliation(s)
- Yin-Wei Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, and 130 MeiLong Road, Shanghai 200237, People's Republic of China
| | | | | |
Collapse
|
37
|
Delpont N, Escofet I, Pérez-Galán P, Spiegl D, Raducan M, Bour C, Sinisi R, Echavarren AM. Modular chiral gold(i) phosphite complexes†Electronic supplementary information (ESI) available: Experimental results and NMR data. CCDC 933751 ( L11(AuCl)), 933752 ( L12(AuCl)a), 933753 ( L9(AuCl)), 933754 ( L10(AuCl)), 933756 ( L8(AuCl)), 933757 ( L12(AuCl)e). For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c3cy00250kClick here for additional data file.Click here for additional data file. Catal Sci Technol 2013; 3:3007-3012. [PMID: 25664164 PMCID: PMC4317972 DOI: 10.1039/c3cy00250k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Accepted: 07/01/2013] [Indexed: 11/21/2022]
Abstract
Chiral gold(i) phosphite complexes are readily prepared modularly from 3,3'-bis(triphenylsilyl)-1,1'-bi-2-naphthol. These chiral gold(i) phosphite complexes are very reactive precatalysts for the [4+2] cycloaddition of aryl-substituted 1,6-enynes with enantiomeric ratios ranging from 86 : 14 up to 94 : 6.
Collapse
Affiliation(s)
- Nicolas Delpont
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Imma Escofet
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Patricia Pérez-Galán
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Dirk Spiegl
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Mihai Raducan
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Christophe Bour
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Riccardo Sinisi
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain .
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ) , Av. Països Catalans 16 , 43007 Tarragona , Spain . ; Departament de Química Analítica i Química Orgànica , Universitat Rovira i Virgili , C/Marcel·li Domingo s/n , 43007 Tarragona , Spain
| |
Collapse
|
38
|
Michon C, Medina F, Abadie MA, Agbossou-Niedercorn F. Asymmetric Intramolecular Hydroamination of Allenes using Mononuclear Gold Catalysts. Organometallics 2013. [DOI: 10.1021/om4009058] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Christophe Michon
- Université Lille Nord de France, 59000 Lille, France
- CNRS, UCCS UMR
8181, 59655 Villeneuve
d’Ascq, France
- ENSCL, CCCF, (Chimie-C7), CS 90108, 59652 Villeneuve d’Ascq Cedex, France
| | - Florian Medina
- Université Lille Nord de France, 59000 Lille, France
- ENSCL, CCCF, (Chimie-C7), CS 90108, 59652 Villeneuve d’Ascq Cedex, France
| | - Marc-Antoine Abadie
- Université Lille Nord de France, 59000 Lille, France
- ENSCL, CCCF, (Chimie-C7), CS 90108, 59652 Villeneuve d’Ascq Cedex, France
| | - Francine Agbossou-Niedercorn
- Université Lille Nord de France, 59000 Lille, France
- CNRS, UCCS UMR
8181, 59655 Villeneuve
d’Ascq, France
- ENSCL, CCCF, (Chimie-C7), CS 90108, 59652 Villeneuve d’Ascq Cedex, France
| |
Collapse
|
39
|
Kruckenberg A, Wadepohl H, Gade LH. Bis(diisopropylphosphinomethyl)amine Nickel(II) and Nickel(0) Complexes: Coordination Chemistry, Reactivity, and Catalytic Decarbonylative C–H Arylation of Benzoxazole. Organometallics 2013. [DOI: 10.1021/om400711d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Achim Kruckenberg
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| |
Collapse
|
40
|
Roth T, Wadepohl H, Wright DS, Gade LH. Chiral ditopic cyclophosphazane (CycloP) ligands: synthesis, coordination chemistry, and application in asymmetric catalysis. Chemistry 2013; 19:13823-37. [PMID: 24038171 DOI: 10.1002/chem.201302327] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Indexed: 11/10/2022]
Abstract
A series of dichlorocyclophosphazanes [{ClP(μ-NR)}2 ] containing chiral and achiral R groups was obtained from simple commercially available amines and PCl3 . Their condensation reactions with axially chiral biaryl diols yielded ansa-bridged chiral cyclophosphazane (CycloP) ligands. This highly modular methodology allows extensive elaboration of the ligand set, in which the chirality can be introduced at the diol bridge and/or the amido R group. This provides the possibility to observe match and mismatch effects in catalysis. A series of twenty CycloP ligands was synthesized and characterized by multinuclear NMR spectroscopy, HRMS, elemental analysis, and in selected cases, single-crystal X-ray diffraction. These studies show that all of the ditopic CycloP ligands are C2 symmetric, rendering their metal coordination sites symmetry equivalent. Two well-established enantioselective reactions were explored by using late-transition metal CycloP complexes as catalysts; the gold-catalyzed hydroamination of γ-allenyl sulfonamides and the asymmetric nickel-catalyzed three-component coupling of a diene and an aldehyde. The steric demands of the CycloP ligands have a subtle influence on the reactivity and selectivity observed in both reactions. Good enantiomeric ratios (e.r.) as high as 89:11 in the gold-catalyzed reaction and 92:8 in the nickel-catalyzed bis-homoallylation reaction were observed.
Collapse
Affiliation(s)
- Torsten Roth
- Anorganisch Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg (Germany), Fax: (+49) 6221-54-5609
| | | | | | | |
Collapse
|
41
|
Scherl P, Wadepohl H, Gade LH. Hydrogenation and Silylation of a Double-Cyclometalated Ruthenium Complex: Structures and Dynamic Behavior of Hydrido and Hydridosilicate Ruthenium Complexes. Organometallics 2013. [DOI: 10.1021/om400574a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Peter Scherl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| |
Collapse
|
42
|
Faza ON, López CS. Computational Study of Gold-Catalyzed Homo- and Cross-Coupling Reactions. J Org Chem 2013; 78:4929-39. [DOI: 10.1021/jo4005603] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Olalla Nieto Faza
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas, 32004 Ourense,
Spain
| | - Carlos Silva López
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas, 32004 Ourense,
Spain
| |
Collapse
|
43
|
Pflästerer D, Dolbundalchok P, Rafique S, Rudolph M, Rominger F, Hashmi ASK. On the Gold-Catalyzed Intramolecular 7-exo-trigHydroamination of Allenes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300154] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
44
|
Reznichenko AL, Hultzsch KC. C1-Symmetric Rare-Earth-Metal Aminodiolate Complexes for Intra- and Intermolecular Asymmetric Hydroamination of Alkenes. Organometallics 2013. [DOI: 10.1021/om3010614] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander L. Reznichenko
- Department of Chemistry & 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 & Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| |
Collapse
|
45
|
Miles DH, Veguillas M, Toste FD. Gold(i)-catalyzed enantioselective bromocyclization reactions of allenes. Chem Sci 2013. [DOI: 10.1039/c3sc50811k] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
46
|
|
47
|
Bandini M, Bottoni A, Chiarucci M, Cera G, Miscione GP. Mechanistic insights into enantioselective gold-catalyzed allylation of indoles with alcohols: the counterion effect. J Am Chem Soc 2012. [PMID: 23193975 DOI: 10.1021/ja3086774] [Citation(s) in RCA: 126] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Enantioselective gold-catalysis is emerging as a powerful tool in organic synthesis for the stereoselective manipulation of unfunctionalized unsaturated hydrocarbons. Despite the exponential growth, the molecular complexity of common chiral gold complexes generally prevents a complete description of the mechanism steps and activation modes being documented. In this study, we present the results of a combined experimental-computational (DFT) investigation of the mechanism of the enantioselective gold-catalyzed allylic alkylation of indoles with alcohols. A stepwise S(N)2'-process (i.e. anti-auroindolination of the olefin, proton-transfer, and subsequent anti-elimination [Au]-OH) is disclosed, leading to a library of tricyclic-fused indole derivatives. The pivotal role played by the gold counterion, in terms of molecular arrangement (i.e. "folding effect") and proton-shuttling in restoring the catalytic species, is finally documented.
Collapse
Affiliation(s)
- Marco Bandini
- Dipartimento di Chimica G. Ciamician, Alma Mater Studiorum-Università di Bologna, via Selmi 2, 40126 Bologna, Italy.
| | | | | | | | | |
Collapse
|
48
|
Medina F, Michon C, Agbossou-Niedercorn F. Intermolecular Mono- and Dihydroamination of Activated Alkenes Using a Recoverable Gold Catalyst. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200891] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
49
|
Scherl P, Kruckenberg A, Mader S, Wadepohl H, Gade LH. Ruthenium η4-Trimethylenemethane Complexes Containing Tripodal Phosphanomethylamine Ligands. Organometallics 2012. [DOI: 10.1021/om300794h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peter Scherl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Achim Kruckenberg
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Steffen Mader
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| |
Collapse
|
50
|
Teller H, Corbet M, Mantilli L, Gopakumar G, Goddard R, Thiel W, Fürstner A. One-Point Binding Ligands for Asymmetric Gold Catalysis: Phosphoramidites with a TADDOL-Related but Acyclic Backbone. J Am Chem Soc 2012; 134:15331-42. [DOI: 10.1021/ja303641p] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Henrik Teller
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Matthieu Corbet
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Luca Mantilli
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | | | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Walter Thiel
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, D-45470 Mülheim/Ruhr, Germany
| |
Collapse
|