151
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Zhu D, Thapa I, Korobkov I, Gambarotta S, Budzelaar PHM. Redox-active ligands and organic radical chemistry. Inorg Chem 2011; 50:9879-87. [PMID: 21520927 DOI: 10.1021/ic2002145] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Knowledge about bonding in diiminepyridine (L) halide, alkyl, and dinitrogen complexes of the metals iron, cobalt, and nickel is summarized, and two new examples are added to the set: L(1)Ni(Me) and L(1)Ni(N(2)). Reactivity of these types of complexes is discussed in terms of organic radical chemistry. New C-C couplings with L(2)CoAr complexes are described and proposed to involve halide abstraction and radical coupling. Calculations support the high tendency of the diiminepyridine ligand to accept an electron coming from a metal-carbon bond and so facilitate loss of a radical.
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Affiliation(s)
- Di Zhu
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
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152
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Lohre C, Dröge T, Wang C, Glorius F. Nickel‐Catalyzed Cross‐Coupling of Aryl Bromides with Tertiary Grignard Reagents Utilizing Donor‐Functionalized N‐Heterocyclic Carbenes (NHCs). Chemistry 2011; 17:6052-5. [DOI: 10.1002/chem.201100909] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Indexed: 11/07/2022]
Affiliation(s)
- Claudia Lohre
- Westfälische Wilhelms‐Universität Münster, Organisch‐Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany), Fax: (+49) 251‐833‐3202
| | - Thomas Dröge
- Westfälische Wilhelms‐Universität Münster, Organisch‐Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany), Fax: (+49) 251‐833‐3202
| | - Congyang Wang
- Westfälische Wilhelms‐Universität Münster, Organisch‐Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany), Fax: (+49) 251‐833‐3202
| | - Frank Glorius
- Westfälische Wilhelms‐Universität Münster, Organisch‐Chemisches Institut, Corrensstrasse 40, 48149 Münster (Germany), Fax: (+49) 251‐833‐3202
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153
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Munro-Leighton C, Adduci LL, Becker JJ, Gagné MR. Oxidative Addition of Secondary C–X Bonds to Palladium(0): A Beneficial Anomeric Acceleration. Organometallics 2011. [DOI: 10.1021/om200221r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Colleen Munro-Leighton
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Laura L. Adduci
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
| | - Jennifer J. Becker
- U.S. Army Research Office, P.O. Box 12211, Research Triangle Park, North Carolina 27709, United States
| | - Michel R. Gagné
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, United States
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154
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Ren P, Vechorkin O, Allmen KV, Scopelliti R, Hu X. A Structure–Activity Study of Ni-Catalyzed Alkyl–Alkyl Kumada Coupling. Improved Catalysts for Coupling of Secondary Alkyl Halides. J Am Chem Soc 2011; 133:7084-95. [DOI: 10.1021/ja200270k] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peng Ren
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, CH 1015, Switzerland
| | - Oleg Vechorkin
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, CH 1015, Switzerland
| | - Kim von Allmen
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, CH 1015, Switzerland
| | - Rosario Scopelliti
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, CH 1015, Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, CH 1015, Switzerland
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155
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156
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Zhou W, Napoline JW, Thomas CM. A Catalytic Application of Co/Zr Heterobimetallic Complexes: Kumada Coupling of Unactivated Alkyl Halides with Alkyl Grignard Reagents. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100109] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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157
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Magano J, Dunetz JR. Large-Scale Applications of Transition Metal-Catalyzed Couplings for the Synthesis of Pharmaceuticals. Chem Rev 2011; 111:2177-250. [PMID: 21391570 DOI: 10.1021/cr100346g] [Citation(s) in RCA: 1278] [Impact Index Per Article: 98.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Javier Magano
- Research API, Pharmaceutical Sciences, Pfizer, Inc., Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joshua R. Dunetz
- Research API, Pharmaceutical Sciences, Pfizer, Inc., Eastern Point Road, Groton, Connecticut 06340, United States
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158
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Jana R, Pathak TP, Sigman MS. Advances in transition metal (Pd, Ni, Fe)-catalyzed cross-coupling reactions using alkyl-organometallics as reaction partners. Chem Rev 2011; 111:1417-92. [PMID: 21319862 PMCID: PMC3075866 DOI: 10.1021/cr100327p] [Citation(s) in RCA: 1666] [Impact Index Per Article: 128.2] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ranjan Jana
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
| | - Tejas P. Pathak
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-8500
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159
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Niu JL, Hao XQ, Gong JF, Song MP. Symmetrical and unsymmetrical pincer complexes with group 10 metals: synthesis via aryl C-H activation and some catalytic applications. Dalton Trans 2011; 40:5135-50. [PMID: 21380463 DOI: 10.1039/c0dt01439g] [Citation(s) in RCA: 161] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aryl-based pincer metal complexes with anionic terdentate ligands have been widely applied in organic synthesis, organometallic catalysis and other related areas. Synthetically, the most simple and convenient method for the construction of these complexes is the direct metal-induced C(aryl)-H bond activation, which can be fulfilled by choosing the appropriate functional donor groups in the two side arms of the aryl-based pincer preligands. In this perspective, we wish to summarize some results achieved by our group in this context. Successful examples include symmetrical chiral bis(imidazoline) NCN pincer complexes with Ni(II), Pd(II) and Pt(II), bis(phosphinite) and bis(phosphoramidite) PCP pincer Pd(II) complexes, unsymmetrical (pyrazolyl)phosphinite, (amino)phosphinite and (imino)phosphinite PCN pincer Pd(II) complexes, chiral (imidazolinyl)phosphinite and (imidazolinyl)phosphoramidite PCN pincer complexes with Ni(II) and Pd(II) as well as unsymmetrical (oxazolinyl)amine and (oxazolinyl)pyrazole NCN' pincer Pd(II) complexes. Among them, the P-donor containing complexes are efficiently synthesized by the "one-pot phosphorylation/metalation" method. The obtained symmetrical and unsymmetrical pincer complexes have been used as catalysts in Suzuki-Miyaura reaction (Pd), asymmetric Friedel-Crafts alkylation of indole with trans-β-nitrostyrene (Pt) as well as in asymmetric allylation of aldehyde and sulfonimine (Pd). In the Suzuki couplings conducted at 40-50 °C, some unsymmetrical Pd complexes exhibit much higher activity than the related symmetrical ones which can be attributed to their faster release of active Pd(0) species resulting from the hemilabile coordination of the ligands. Literature results on the synthesis of some related pincer complexes as well as their activities in the above catalytic reactions are also presented.
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Affiliation(s)
- Jun-Long Niu
- Department of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou, 450052, China
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160
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Xue F, Zhao J, Hor TSA. Iron(ii) complexes with functionalized amine-pyrazolyl tripodal ligands in the cross-coupling of aryl Grignard with alkyl halides. Dalton Trans 2011; 40:8935-40. [DOI: 10.1039/c1dt10258c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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161
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Ren P, Vechorkin O, Csok Z, Salihu I, Scopelliti R, Hu X. Pd, Pt, and Ru complexes of a pincer bis(amino)amide ligand. Dalton Trans 2011; 40:8906-11. [DOI: 10.1039/c1dt10195a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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162
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Hu X. Nickel-catalyzed cross coupling of non-activated alkyl halides: a mechanistic perspective. Chem Sci 2011. [DOI: 10.1039/c1sc00368b] [Citation(s) in RCA: 466] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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163
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Radicals in transition metal catalyzed reactions? transition metal catalyzed radical reactions?: a fruitful interplay anyway: part 3: catalysis by group 10 and 11 elements and bimetallic catalysis. Top Curr Chem (Cham) 2011; 320:323-451. [PMID: 22143611 DOI: 10.1007/128_2011_288] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This review summarizes the current status of transition metal catalyzed reactions involving radical intermediates in organic chemistry. This part focuses on radical-based methods catalyzed by group 10 and group 11 metal complexes. Reductive and redox-neutral C-C bond formations catalyzed by low-valent metal complexes as well as catalytic oxidative methods are reviewed. Catalytic processes which rely on the combination of two metal complexes are also covered.
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164
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Chang YH, Liu ZY, Liu YH, Peng SM, Chen JT, Liu ST. Palladium(ii) complexes based on 1,8-naphthyridine functionalized N-heterocyclic carbenes (NHC) and their catalytic activity. Dalton Trans 2011; 40:489-94. [PMID: 21113540 DOI: 10.1039/c0dt00990c] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Yung-Hung Chang
- Department of Chemistry, National Taiwan University, Taipei, 106, Taiwan
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165
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Qian X, Dawe LN, Kozak CM. Catalytic alkylation of arylGrignard reagents by iron(iii) amine-bis(phenolate) complexes. Dalton Trans 2011; 40:933-43. [DOI: 10.1039/c0dt01239d] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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166
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MacLeod KC, Conway JL, Patrick BO, Smith KM. Exploring Chromium(III)−Alkyl Bond Homolysis with CpCr[(ArNCMe)2CH](R) Complexes. J Am Chem Soc 2010; 132:17325-34. [DOI: 10.1021/ja1083392] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K. Cory MacLeod
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna, BC, Canada V1V 1V7, and Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Julia L. Conway
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna, BC, Canada V1V 1V7, and Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Brian O. Patrick
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna, BC, Canada V1V 1V7, and Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Kevin M. Smith
- Department of Chemistry, University of British Columbia Okanagan, 3333 University Way, Kelowna, BC, Canada V1V 1V7, and Department of Chemistry, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
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167
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Ghosh R, Sarkar A. Bidentate P, N−P Ligand for Nickel-Catalyzed Cross-Coupling of Aryl or Benzyl Chlorides with ArMgX. J Org Chem 2010; 75:8283-6. [DOI: 10.1021/jo1016458] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Raju Ghosh
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Amitabha Sarkar
- Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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168
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Breitenfeld J, Vechorkin O, Corminboeuf C, Scopelliti R, Hu X. Why Are (NN2)Ni Pincer Complexes Active for Alkyl−Alkyl Coupling: β-H Elimination Is Kinetically Accessible but Thermodynamically Uphill. Organometallics 2010. [DOI: 10.1021/om1007506] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Breitenfeld
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC, Lausanne, CH 1015, Switzerland
| | - Oleg Vechorkin
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC, Lausanne, CH 1015, Switzerland
| | - Clémence Corminboeuf
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC, Lausanne, CH 1015, Switzerland
| | - Rosario Scopelliti
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC, Lausanne, CH 1015, Switzerland
| | - Xile Hu
- Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), SB-ISIC, Lausanne, CH 1015, Switzerland
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169
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Adrio J, Carretero JC. Functionalized Grignard Reagents in Kumada Cross-Coupling Reactions. ChemCatChem 2010. [DOI: 10.1002/cctc.201000237] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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170
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Velian A, Lin S, Miller AJM, Day MW, Agapie T. Synthesis and C-C coupling reactivity of a dinuclear Ni(i)-Ni(i) complex supported by a terphenyl diphosphine. J Am Chem Soc 2010; 132:6296-7. [PMID: 20397653 DOI: 10.1021/ja101699a] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mono- and bimetallic complexes of nickel supported by a terphenyl diphosphine have been synthesized. The reported complexes show diverse metal-arene interactions in the solid state. Reactions of an o,o'-biphenyldiyl dinickel complex with CO and dichloroalkanes lead to fluorene derivatives, indicating the formation of carbon-carbon bonds at a bimetallic moiety.
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Affiliation(s)
- Alexandra Velian
- Division of Chemistry and Chemical Engineering, Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, USA
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171
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172
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Xie LG, Wang ZX. Nickel-Catalyzed Cross-Coupling of Non-Activated or Functionalized Aryl Halides with Aryl Grignard Reagents. Chemistry 2010; 16:10332-6. [DOI: 10.1002/chem.201001022] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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173
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Chen CR, Zhou S, Biradar DB, Gau HM. Extremely Efficient Cross-Coupling of Benzylic Halides with Aryltitanium Tris(isopropoxide) Catalyzed by Low Loadings of a Simple Palladium(II) Acetate/Tris(p-tolyl)phosphine System. Adv Synth Catal 2010. [DOI: 10.1002/adsc.201000311] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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174
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Ackermann L, Kapdi AR, Schulzke C. Air-Stable Secondary Phosphine Oxide or Chloride (Pre)Ligands for Cross-Couplings of Unactivated Alkyl Chlorides. Org Lett 2010; 12:2298-301. [DOI: 10.1021/ol100658y] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Institut für Anorganische Chemie, Georg-August-Universitaet, Tammannstrasse 2, 37077 Goettingen, Germany
| | - Anant R. Kapdi
- Institut für Organische und Biomolekulare Chemie and Institut für Anorganische Chemie, Georg-August-Universitaet, Tammannstrasse 2, 37077 Goettingen, Germany
| | - Carola Schulzke
- Institut für Organische und Biomolekulare Chemie and Institut für Anorganische Chemie, Georg-August-Universitaet, Tammannstrasse 2, 37077 Goettingen, Germany
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175
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Anbarasan P, Neumann H, Beller M. A Convenient Synthesis of Benzonitriles via Electrophilic Cyanation with N-Cyanobenzimidazole. Chemistry 2010; 16:4725-8. [DOI: 10.1002/chem.201000086] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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176
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Anbarasan P, Neumann H, Beller M. Efficient Synthesis of Aryl Fluorides. Angew Chem Int Ed Engl 2010; 49:2219-22. [DOI: 10.1002/anie.200905855] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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177
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Ackermann L, Potukuchi H, Kapdi A, Schulzke C. Kumada-Corriu Cross-Couplings with 2-Pyridyl Grignard Reagents. Chemistry 2010; 16:3300-3. [DOI: 10.1002/chem.201000032] [Citation(s) in RCA: 99] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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178
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179
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Vechorkin O, Proust V, Hu X. The Nickel/Copper-Catalyzed Direct Alkylation of Heterocyclic CH Bonds. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200907040] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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180
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Vechorkin O, Proust V, Hu X. The Nickel/Copper-Catalyzed Direct Alkylation of Heterocyclic CH Bonds. Angew Chem Int Ed Engl 2010; 49:3061-4. [DOI: 10.1002/anie.200907040] [Citation(s) in RCA: 178] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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181
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Kieltsch I, Dubinina GG, Hamacher C, Kaiser A, Torres-Nieto J, Hutchison JM, Klein A, Budnikova Y, Vicic DA. Magnitudes of Electron-Withdrawing Effects of the Trifluoromethyl Ligand in Organometallic Complexes of Copper and Nickel. Organometallics 2010. [DOI: 10.1021/om901122z] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Iris Kieltsch
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822
| | - Galyna G. Dubinina
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822
| | - Claudia Hamacher
- Institut für Anorganische Chemie, Universität zu Köln, Greinstrasse 6, D-50939 Köln, Germany
| | - André Kaiser
- Institut für Anorganische Chemie, Universität zu Köln, Greinstrasse 6, D-50939 Köln, Germany
| | - Jorge Torres-Nieto
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822
| | - John M. Hutchison
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822
| | - Axel Klein
- Institut für Anorganische Chemie, Universität zu Köln, Greinstrasse 6, D-50939 Köln, Germany
| | - Yulia Budnikova
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center of Russian Academy of Sciences, 8 Arbuzov Street, 420088 Kazan, Russian Federation
| | - David A. Vicic
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822
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182
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Lou S, Fu GC. Nickel/bis(oxazoline)-catalyzed asymmetric Kumada reactions of alkyl electrophiles: cross-couplings of racemic alpha-bromoketones. J Am Chem Soc 2010; 132:1264-6. [PMID: 20050651 PMCID: PMC2814537 DOI: 10.1021/ja909689t] [Citation(s) in RCA: 203] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first asymmetric Kumada reactions of alkyl electrophiles are described, specifically, cross-couplings of racemic alpha-bromoketones with aryl Grignard reagents. Several features of this investigation are of interest. First, the couplings proceed at remarkably low temperature (-40 or -60 degrees C), which enables the asymmetric synthesis of racemization-prone alpha-arylketones. Second, dialkyl ketones undergo enantioselective coupling in good ee and yield. Third, readily available bis(oxazolines) are shown for the first time to be effective ligands for cross-couplings of alkyl electrophiles, thereby opening the door to new opportunities in asymmetric catalysis.
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Affiliation(s)
- Sha Lou
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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183
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López-Pérez A, Adrio J, Carretero JC. Palladium-catalyzed cross-coupling reaction of secondary benzylic bromides with grignard reagents. Org Lett 2010; 11:5514-7. [PMID: 19943702 DOI: 10.1021/ol902335c] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A mild palladium-catalyzed Kumada-Corriu reaction of secondary benzylic bromides with aryl and alkenyl Grignard reagents has been developed. In the presence of the Xantphos ligand, the undesired beta-elimination pathway is minimized, affording the corresponding cross-coupling products in acceptable to good yields. The reaction proceeds with inversion of the configuration.
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Affiliation(s)
- Ana López-Pérez
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad Autónoma de Madrid, Cantoblanco, 28049 Madrid, Spain
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184
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Prinsell MR, Everson DA, Weix DJ. Nickel-catalyzed, sodium iodide-promoted reductive dimerization of alkyl halides, alkyl pseudohalides, and allylic acetates. Chem Commun (Camb) 2010; 46:5743-5. [DOI: 10.1039/c0cc01716g] [Citation(s) in RCA: 144] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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185
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Kiss Á, Hell Z, Bálint M. Nickel/magnesium–lanthanum mixed oxide catalyst in the Kumada-coupling. Org Biomol Chem 2010; 8:331-5. [DOI: 10.1039/b919246h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Vechorkin O, Barmaz D, Proust V, Hu X. Ni-catalyzed Sonogashira coupling of nonactivated alkyl halides: orthogonal functionalization of alkyl iodides, bromides, and chlorides. J Am Chem Soc 2009; 131:12078-9. [PMID: 19670863 DOI: 10.1021/ja906040t] [Citation(s) in RCA: 197] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ni-catalyzed Sonogashira coupling of nonactivated, beta-H-containing alkyl halides, including chlorides, is reported. The coupling is tolerant to a wide range of functional groups, including ether, ester, amide, nitrile, keto, heterocycle, acetal, and aryl halide, in both coupling partners. The coupling can be selective for a specific C-X bond (X = I, Br, Cl) and allows for orthogonal functionalization of alkyl halides with multiple reactive sites.
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Affiliation(s)
- Oleg Vechorkin
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, SB-ISIC-LSCI, BCH 3305, Lausanne CH 1015, Switzerland
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