1
|
Goyal K, Kukier GA, Chen X, Turlik A, Houk KN, Sarpong R. Rearrangement of a carboxy-substituted spiro[4.4]nonatriene to annulated fulvenes through a Pd(ii)-mediated 1,5-vinyl shift. Chem Sci 2023; 14:11809-11817. [PMID: 37920349 PMCID: PMC10619539 DOI: 10.1039/d3sc03222a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 09/19/2023] [Indexed: 11/04/2023] Open
Abstract
A novel synthesis of aryl-substituted, enantioenriched fulvenes from an oxidative Heck cascade and rearrangement of a carboxy-substituted spiro[4.4]nonatriene is disclosed. Mechanistic investigations with density functional theory (DFT) calculations and empirical results support the net transformation occurring through a novel Pd(ii)-mediated 1,5-vinyl shift from a vinyl-palladium intermediate that terminates with protodepalladation. This spiro-to-fused bicycle conversion tolerates a range of electron-rich and deficient arylboronic acids to give a range of mono- and diaryl substituted annulated fulvenes in moderate to good yields and enantiomeric ratios. Overall, this work connects two classes of molecules with a rich history in physical organic chemistry.
Collapse
Affiliation(s)
- Karan Goyal
- Department of Chemistry, University of California Berkeley CA 94720 USA
| | - Garrett A Kukier
- Department of Chemistry and Biochemistry, University of California Los Angeles CA 90095 USA
| | - Xiangyang Chen
- Department of Chemistry and Biochemistry, University of California Los Angeles CA 90095 USA
| | - Aneta Turlik
- Department of Chemistry and Biochemistry, University of California Los Angeles CA 90095 USA
| | - K N Houk
- Department of Chemistry and Biochemistry, University of California Los Angeles CA 90095 USA
| | - Richmond Sarpong
- Department of Chemistry, University of California Berkeley CA 94720 USA
| |
Collapse
|
2
|
Markham TE, Duggan PJ, Johnston MR. Heck arylation of the natural pyrethrins. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
3
|
Galkin KI, Gordeev EG, Ananikov VP. Organocatalytic Deuteration Induced by the Dynamic Covalent Interaction of Imidazolium Cations with Ketones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001507] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Konstantin I. Galkin
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt, 47 Moscow 119991 Russia
| | - Evgeniy G. Gordeev
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt, 47 Moscow 119991 Russia
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prospekt, 47 Moscow 119991 Russia
| |
Collapse
|
4
|
Steeds HG, Knowles JP, Yu WL, Richardson J, Cooper KG, Booker‐Milburn KI. Rapid Access to Azabicyclo[3.3.1]nonanes by a Tandem Diverted Tsuji-Trost Process. Chemistry 2020; 26:14330-14334. [PMID: 32812670 PMCID: PMC7702095 DOI: 10.1002/chem.202003762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Indexed: 12/14/2022]
Abstract
A three-step synthesis of the 2-azabicyclo[3.3.1]nonane ring system from simple pyrroles, employing a combined photochemical/palladium-catalysed approach is reported. Substrate scope is broad, allowing the incorporation of a wide range of functionality relevant to medicinal chemistry. Mechanistic studies demonstrate that the process occurs by acid-assisted C-N bond cleavage followed by β-hydride elimination to form a reactive diene, demonstrating that efficient control of what might be considered off-cycle reactions can result in productive tandem catalytic processes. This represents a short and versatile route to the biologically important morphan scaffold.
Collapse
Affiliation(s)
- Hannah G. Steeds
- School of ChemistryUniversity of BristolCantock' CloseBristolBS8 1TSUK
| | | | - Wai L. Yu
- School of ChemistryUniversity of BristolCantock' CloseBristolBS8 1TSUK
| | | | - Katie G. Cooper
- Pharmaceutical Technology & DevelopmentAstraZenecaMacclesfield CampusCheshireSK10 2NAUK
| | | |
Collapse
|
5
|
Jiménez-Cruz JC, Guzmán-Mejía R, Juaristi E, Sánchez-Antonio O, García-Revilla MA, González-Campos JB, Aviña-Verduzco J. Preparation of aromatic γ-hydroxyketones by means of Heck coupling of aryl halides and 2,3-dihydrofuran, catalyzed by a palladium( ii) glycine complex under microwave irradiation. NEW J CHEM 2020. [DOI: 10.1039/d0nj02630a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis of phenyl-γ-hydroxyketones through Heck coupling and subsequent opening of the tetrahydrofuran ring by the nucleophilic attack of a water molecule catalyzed by PdCl2·Gly2 under microwave irradiation.
Collapse
Affiliation(s)
- Juan C. Jiménez-Cruz
- Instituto de Investigaciones Químico Biológicas
- Universidad Michoacana de San Nicolás de Hidalgo
- 58030 Morelia
- Mexico
| | - Ramón Guzmán-Mejía
- Instituto de Investigaciones Químico Biológicas
- Universidad Michoacana de San Nicolás de Hidalgo
- 58030 Morelia
- Mexico
| | - Eusebio Juaristi
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados
- Avenida Instituto Politécnico
- 07360 Ciudad de México
- Mexico
| | - Omar Sánchez-Antonio
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados
- Avenida Instituto Politécnico
- 07360 Ciudad de México
- Mexico
| | | | - J. Betzabe González-Campos
- Instituto de Investigaciones Químico Biológicas
- Universidad Michoacana de San Nicolás de Hidalgo
- 58030 Morelia
- Mexico
| | - Judit Aviña-Verduzco
- Instituto de Investigaciones Químico Biológicas
- Universidad Michoacana de San Nicolás de Hidalgo
- 58030 Morelia
- Mexico
| |
Collapse
|
6
|
McNelles SA, Pantaleo JL, Adronov A. Highly Efficient Multigram Synthesis of Dibenzoazacyclooctyne (DBCO) without Chromatography. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00406] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Stuart A. McNelles
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1 Canada
| | - Julia L. Pantaleo
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1 Canada
| | - Alex Adronov
- Department of Chemistry & Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, L8S 4M1 Canada
| |
Collapse
|
7
|
Riemer N, Shipman M, Wessig P, Schmidt B. Iterative Arylation of Itaconimides with Diazonium Salts through Electrophilic Palladium Catalysis: Divergent β-H-Elimination Pathways in Repetitive Matsuda–Heck Reactions. J Org Chem 2019; 84:5732-5746. [DOI: 10.1021/acs.joc.9b00627] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nastja Riemer
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24−25, D-14476 Potsdam-Golm, Germany
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL Coventry, U.K
| | - Michael Shipman
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL Coventry, U.K
| | - Pablo Wessig
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24−25, D-14476 Potsdam-Golm, Germany
| | - Bernd Schmidt
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24−25, D-14476 Potsdam-Golm, Germany
| |
Collapse
|
8
|
Yang B, Sharkas K, Gagliardi L, Truhlar DG. The effects of active site and support on hydrogen elimination over transition-metal-functionalized yttria-decorated metal–organic frameworks. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01069f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Transition-metal catalysts supported on a metal–organic framework have been screened computationally to reveal the best catalytic candidates for hydrogen elimination reactions, which are critical in many catalytic cycles.
Collapse
Affiliation(s)
- Bo Yang
- Department of Chemistry
- Inorganometallic Catalyst Design Center
- Chemical Theory Center
- and Minnesota Supercomputing Institute
- University of Minnesota
| | - Kamal Sharkas
- Department of Chemistry
- Inorganometallic Catalyst Design Center
- Chemical Theory Center
- and Minnesota Supercomputing Institute
- University of Minnesota
| | - Laura Gagliardi
- Department of Chemistry
- Inorganometallic Catalyst Design Center
- Chemical Theory Center
- and Minnesota Supercomputing Institute
- University of Minnesota
| | - Donald G. Truhlar
- Department of Chemistry
- Inorganometallic Catalyst Design Center
- Chemical Theory Center
- and Minnesota Supercomputing Institute
- University of Minnesota
| |
Collapse
|
9
|
Croisant MF, Van Hoveln R, Schomaker JM. Formal Dyotropic Rearrangements in Organometallic Transformations. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500561] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
10
|
Borrajo-Calleja GM, Bizet V, Bürgi T, Mazet C. Access to enantioenriched 2,3- and 2,5-dihydrofurans with a fully substituted C2 stereocenter by Pd-catalyzed asymmetric intermolecular Heck reaction. Chem Sci 2015; 6:4807-4811. [PMID: 29142715 PMCID: PMC5667573 DOI: 10.1039/c5sc01460c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 05/31/2015] [Indexed: 11/21/2022] Open
Abstract
A palladium catalyzed intermolecular asymmetric Heck reaction provides access to valuable 2,3- and 2,5-dihydrofurans with a fully substituted C2 stereocenter with high levels of regio- and enantiocontrol.
A palladium-catalyzed intermolecular asymmetric Heck reaction with dihydrofurans with a trisubstituted double bond is reported. The use of two different chiral ligands provides access to valuable 2,3- and 2,5-dihydrofurans with a fully substituted C2 stereocenter with high levels of regio- and enantiocontrol.
Collapse
Affiliation(s)
- Gustavo M Borrajo-Calleja
- Department of Organic Chemistry , University of Geneva , 30 quai Ernest Ansermet , 1211 Geneva-4 , Switzerland .
| | - Vincent Bizet
- Department of Organic Chemistry , University of Geneva , 30 quai Ernest Ansermet , 1211 Geneva-4 , Switzerland .
| | - Thomas Bürgi
- Department of Physical Chemistry , University of Geneva , 30 quai Ernest Ansermet , 1211 Geneva-4 , Switzerland
| | - Clément Mazet
- Department of Organic Chemistry , University of Geneva , 30 quai Ernest Ansermet , 1211 Geneva-4 , Switzerland .
| |
Collapse
|
11
|
Lauer MG, Thompson MK, Shaughnessy KH. Controlling olefin isomerization in the heck reaction with neopentyl phosphine ligands. J Org Chem 2014; 79:10837-48. [PMID: 25333873 DOI: 10.1021/jo501840u] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The use of neopentyl phosphine ligands was examined in the coupling of aryl bromides with alkenes. Di-tert-butylneopentylphosphine (DTBNpP) was found to promote Heck couplings with aryl bromides at ambient temperature. In the Heck coupling of cyclic alkenes, the degree of alkene isomerization was found to be controlled by the choice of ligand with DTBNpP promoting isomerization to a much greater extent than trineopentylphosphine (TNpP). Under optimal conditions, DTBNpP provides high selectivity for 2-aryl-2,3-dihydrofuran in the arylation of 2,3-dihydrofuran, whereas TNpP provided high selectivity for the isomeric 2-aryl-2,5-dihydrofuran. A similar complementary product selectivity is seen in the Heck coupling of cyclopentene. Heck coupling of 2-bromophenols or 2-bromoanilides with 2,3-dihydrofurans affords 2,5-epoxybenzoxepin and 2,5-epoxybenzazepins, respectively.
Collapse
Affiliation(s)
- Matthew G Lauer
- Department of Chemistry, The University of Alabama , P.O. Box 870336, Tuscaloosa, Alabama 35487-0336, United States
| | | | | |
Collapse
|
12
|
Morel A, Trzeciak AM, Pernak J. Palladium catalyzed heck arylation of 2,3-dihydrofuran-effect of the palladium precursor. Molecules 2014; 19:8402-13. [PMID: 24950443 PMCID: PMC6271132 DOI: 10.3390/molecules19068402] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 06/10/2014] [Accepted: 06/12/2014] [Indexed: 11/16/2022] Open
Abstract
Heck arylation of 2,3-dihydrofuran with iodobenzene was carried out in systems consisting of different palladium precursors (Pd2(dba)3, Pd(acac)2, PdCl2(cod), [PdCl(allyl)]2, PdCl2(PhCN)2, PdCl2(PPh3)2) and ionic liquids (CILs) with L-prolinate or L-lactate anions. All the tested CILs caused remarkable increases of the conversion values and in all of the reactions 2-phenyl-2,3-dihydrofuran (3) was obtained as the main product with a yield of up to 59.2%. The highest conversions of iodobenzene were achieved for the [PdCl(allyl)]2 precursor. Formation of Pd(0) nanoparticles, representing the resting state of the catalyst, was evidenced by TEM.
Collapse
Affiliation(s)
- Adam Morel
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland
| | - Anna M Trzeciak
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie St., 50-383 Wrocław, Poland.
| | - Juliusz Pernak
- Department of Chemical Technology, Poznań University of Technology, pl. M. Skłodowskiej-Curie 2, 60-965 Poznań, Poland
| |
Collapse
|
13
|
Hu J, Hirao H, Li Y, Zhou JS. Palladium-catalyzed asymmetric intermolecular cyclization. Angew Chem Int Ed Engl 2013; 52:8676-80. [PMID: 23824841 DOI: 10.1002/anie.201303753] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/13/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Jian Hu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | | | | | | |
Collapse
|
14
|
Hu J, Hirao H, Li Y, Zhou JS. Palladium-Catalyzed Asymmetric Intermolecular Cyclization. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201303753] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Hu J, Lu Y, Li Y, Zhou J(S. Highly active catalysts of bisphosphine oxides for asymmetric Heck reaction. Chem Commun (Camb) 2013; 49:9425-7. [DOI: 10.1039/c3cc45233f] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Morel A, Silarska E, Trzeciak AM, Pernak J. Palladium-catalyzed asymmetric Heck arylation of 2,3-dihydrofuran – effect of prolinate salts. Dalton Trans 2013; 42:1215-22. [DOI: 10.1039/c2dt31672b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Rauf W, Brown JM. Reactive intermediates in catalytic alkenylation; pathways for Mizoroki–Heck, oxidative Heck and Fujiwara–Moritani reactions. Chem Commun (Camb) 2013; 49:8430-40. [DOI: 10.1039/c3cc44842h] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
18
|
Ewa B, Maciej W, Marcin S, Grzegorz D, Michał Z, Jan P, Józef O. The development of first Staphylococcus aureus SplB protease inhibitors: Phosphonic analogues of glutamine. Bioorg Med Chem Lett 2012; 22:5574-8. [DOI: 10.1016/j.bmcl.2012.07.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 06/29/2012] [Accepted: 07/04/2012] [Indexed: 11/27/2022]
|
19
|
Tan EHP, Lloyd-Jones GC, Harvey JN, Lennox AJJ, Mills BM. [(RCN)2PdCl2]-catalyzed E/Z isomerization of alkenes: a non-hydride binuclear addition-elimination pathway. Angew Chem Int Ed Engl 2011; 50:9602-6. [PMID: 21938759 DOI: 10.1002/anie.201103947] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 07/18/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Emily H P Tan
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, BS8 1TS, UK
| | | | | | | | | |
Collapse
|
20
|
Tan EHP, Lloyd-Jones GC, Harvey JN, Lennox AJJ, Mills BM. [(RCN)2PdCl2]-Catalyzed E/Z Isomerization of Alkenes: A Non-Hydride Binuclear Addition-Elimination Pathway. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103947] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
21
|
Wöste TH, Oestreich M. BINAP versus BINAP(O) in Asymmetric Intermolecular Mizoroki-Heck Reactions: Substantial Effects on Selectivities. Chemistry 2011; 17:11914-8. [DOI: 10.1002/chem.201101695] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Indexed: 11/07/2022]
|
22
|
|
23
|
Mieczyńska E, Trzeciak AM. Selective Heck arylation of cyclohexene with homogeneous and heterogeneous palladium catalysts. Molecules 2010; 15:2166-77. [PMID: 20428035 PMCID: PMC6257410 DOI: 10.3390/molecules15042166] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 03/10/2010] [Accepted: 03/23/2010] [Indexed: 12/02/2022] Open
Abstract
Palladium catalysts containing Pd(II) supported on Al2O3 and alumina-based mixed oxides, Al2O3-ZrO2, Al2O3-CeO2, and Al2O3-Fe2O3, are very effective in the Heck coupling of iodobenzene with cyclohexene in DMF solution. The best results, up to 81% of monoarylated products with a selectivity to 4-phenylcyclohexene (3) close to 90% were obtained with KOH as a base. The catalytic activity of palladium supported on alumina-based oxides was compared with that of homogeneous precursors, such as Pd(OAc)2 and PdCl2(PhCN)2, used in [Bu4N]Br as the reaction medium. Under such conditions homogeneous systems were more selective and produced up to 60% of monoarylated products with a selectivity to 3 close to 60%.
Collapse
Affiliation(s)
- Ewa Mieczyńska
- Faculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie, Wrocław, Poland.
| | | |
Collapse
|
24
|
Krska SW, Mitten JV, Dormer PG, Mowrey D, Machrouhi F, Sun Y, Nelson TD. Enantioselective synthesis of a chiral fluoropiperidine via asymmetric hydrogenation of a vinyl fluoride. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.06.105] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
25
|
Fernández I, Cossío FP, Sierra MA. Dyotropic Reactions: Mechanisms and Synthetic Applications. Chem Rev 2009; 109:6687-711. [DOI: 10.1021/cr900209c] [Citation(s) in RCA: 143] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Israel Fernández
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain, and Kimika Organikoa I Saila—Departamento de Química Orgánica I, DIPC, Universidad del País Vasco—Euskal Herriko Unibertsitatea, P.K. 1072, 28080-San Sebastián Donostia, Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain, and Kimika Organikoa I Saila—Departamento de Química Orgánica I, DIPC, Universidad del País Vasco—Euskal Herriko Unibertsitatea, P.K. 1072, 28080-San Sebastián Donostia, Spain
| | - Miguel A. Sierra
- Departamento de Química Orgánica, Facultad de Química, Universidad Complutense, 28040-Madrid, Spain, and Kimika Organikoa I Saila—Departamento de Química Orgánica I, DIPC, Universidad del País Vasco—Euskal Herriko Unibertsitatea, P.K. 1072, 28080-San Sebastián Donostia, Spain
| |
Collapse
|
26
|
Evans L, Fey N, Lloyd-Jones G, Muñoz M, Slatford P. Cryptocatalytic 1,2-Alkene Migration in a σ-Alkyl Palladium Diene Complex. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200901468] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
27
|
Evans L, Fey N, Lloyd-Jones G, Muñoz M, Slatford P. Cryptocatalytic 1,2-Alkene Migration in a σ-Alkyl Palladium Diene Complex. Angew Chem Int Ed Engl 2009; 48:6262-5. [DOI: 10.1002/anie.200901468] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
28
|
Fields WH, Khan AK, Sabat M, Chruma JJ. One-Pot Tandem Decarboxylative Allylation−Heck Cyclization of Allyl Diphenylglycinate Imines: Rapid Access to Polyfunctionalized 1-Aminoindanes. Org Lett 2008; 10:5131-4. [DOI: 10.1021/ol801986m] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wendy H. Fields
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
| | - Ali K. Khan
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
| | - Michal Sabat
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
| | - Jason J. Chruma
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319
| |
Collapse
|
29
|
Dreher SD, Dormer PG, Sandrock DL, Molander GA. Efficient cross-coupling of secondary alkyltrifluoroborates with aryl chlorides--reaction discovery using parallel microscale experimentation. J Am Chem Soc 2008; 130:9257-9. [PMID: 18582050 DOI: 10.1021/ja8031423] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Microscale parallel experimentation was used to discover three catalyst systems capable of coupling secondary organotrifluoroborates with sterically and electronically demanding aryl chlorides and bromides. The ensuing results represent the first comprehensive study of alkylboron coupling to aryl chlorides and, in particular, using secondary alkylboron partners. A ligand-dependent beta-hydride elimination/reinsertion mechanism was implicated in the cross-coupling of more hindered substrates, leading to isomeric mixtures of coupled products in some cases.
Collapse
Affiliation(s)
- Spencer D Dreher
- Department of Process Research and the Catalytic Reactions Discovery and Development Laboratory, Merck and Co. Inc., 126 East Lincoln Avenue, Rahway, New Jersey 07065, USA.
| | | | | | | |
Collapse
|