101
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Gosselin F, Savage SJ, Blaquiere N, Staben ST. Heteroarylation of Azine N-Oxides. Org Lett 2012; 14:862-5. [DOI: 10.1021/ol203388j] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Francis Gosselin
- Small Molecule Process Chemistry and Discovery Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Scott J. Savage
- Small Molecule Process Chemistry and Discovery Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Nicole Blaquiere
- Small Molecule Process Chemistry and Discovery Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
| | - Steven T. Staben
- Small Molecule Process Chemistry and Discovery Chemistry, Genentech Inc., 1 DNA Way, South San Francisco, California 94080, United States
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102
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Hevia E, Kennedy AR, McCall MD. Assessing the reactivity of sodium zincate [(TMEDA)Na(TMP)ZntBu2] towards benzoylferrocene: deprotonative metalationvs.alkylation reactions. Dalton Trans 2012; 41:98-103. [DOI: 10.1039/c1dt11465d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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103
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Shi Z, Zhang C, Tang C, Jiao N. Recent advances in transition-metal catalyzed reactions using molecular oxygen as the oxidant. Chem Soc Rev 2012; 41:3381-430. [DOI: 10.1039/c2cs15224j] [Citation(s) in RCA: 1033] [Impact Index Per Article: 86.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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104
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Plé N, Fruit C. Metalation of Pyrazine and Quinoxaline. TOPICS IN HETEROCYCLIC CHEMISTRY 2012. [DOI: 10.1007/7081_2012_95] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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105
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Verhelst T, Liu Z, Maes J, Maes BUW. Synthesis of (Hetero)arylated Pyridazin-3(2 H)-ones via Negishi Reaction Involving Zincated Pyridazin-3(2 H)-ones. J Org Chem 2011; 76:9648-59. [DOI: 10.1021/jo201587j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Tom Verhelst
- Organic Synthesis,
Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020
Antwerp, Belgium
| | - Zuming Liu
- Organic Synthesis,
Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020
Antwerp, Belgium
| | - Jens Maes
- Organic Synthesis,
Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020
Antwerp, Belgium
| | - Bert U. W. Maes
- Organic Synthesis,
Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020
Antwerp, Belgium
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106
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Vabre R, Chevot F, Legraverend M, Piguel S. Microwave-Assisted Pd/Cu-Catalyzed C-8 Direct Alkenylation of Purines and Related Azoles: An Alternative Access to 6,8,9-Trisubstituted Purines. J Org Chem 2011; 76:9542-7. [DOI: 10.1021/jo201893h] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Roxane Vabre
- Univ Paris-Sud, Orsay, F-91405, France
- Institut Curie/CNRS, UMR 176, Bât. 110-112, Centre Universitaire, 91405 Orsay
France
| | - Franciane Chevot
- Univ Paris-Sud, Orsay, F-91405, France
- Institut Curie/CNRS, UMR 176, Bât. 110-112, Centre Universitaire, 91405 Orsay
France
| | - Michel Legraverend
- Institut Curie/CNRS, UMR 176, Bât. 110-112, Centre Universitaire, 91405 Orsay
France
| | - Sandrine Piguel
- Univ Paris-Sud, Orsay, F-91405, France
- Institut Curie/CNRS, UMR 176, Bât. 110-112, Centre Universitaire, 91405 Orsay
France
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107
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Haag B, Mosrin M, Ila H, Malakhov V, Knochel P. Regio- and Chemoselective Metalation of Arenes and Heteroarenes Using Hindered Metal Amide Bases. Angew Chem Int Ed Engl 2011; 50:9794-824. [DOI: 10.1002/anie.201101960] [Citation(s) in RCA: 324] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Indexed: 11/08/2022]
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108
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Haag B, Mosrin M, Ila H, Malakhov V, Knochel P. Regio- und chemoselektive Metallierung von Arenen und Heteroarenen mit gehinderten Metallamidbasen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201101960] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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109
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Armstrong DR, Balloch L, Hevia E, Kennedy AR, Mulvey RE, O'Hara CT, Robertson SD. Meta-metallation of N,N-dimethylaniline: Contrasting direct sodium-mediated zincation with indirect sodiation-dialkylzinc co-complexation. Beilstein J Org Chem 2011; 7:1234-48. [PMID: 21977208 PMCID: PMC3182433 DOI: 10.3762/bjoc.7.144] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 06/06/2011] [Indexed: 11/23/2022] Open
Abstract
Previously we reported that direct zincation of N,N-dimethylaniline by the mixed-metal zincate reagent 1 ((TMEDA)Na(TMP)(t-Bu)Zn(t-Bu)) surprisingly led to meta-metallation (zincation) of the aniline, as manifested in the crystalline complex 2 ((TMEDA)Na(TMP)(m-C(6)H(4)-NMe(2))Zn(t-Bu)), and that iodination of these isolated crystals produced the meta-isomer N,N-dimethyl-3-iodoaniline quantitatively. Completing the study here we find that treating the reaction solution with iodine produces a 72% conversion and results in a mixture of regioisomers of N,N-dimethyliodoaniline, with the meta-isomer still the major product (ortho:meta:para ratio, 6:73:21), as determined by NMR. In contrast to this bimetallic method, sodiation of N,N-dimethylaniline with n-BuNa produced the dimeric, ortho-sodiated complex 3 (((TMEDA)Na(o-C(6)H(4)-NMe(2)))(2)), as characterised by X-ray crystallography and NMR. No regioisomers were observed in the reaction solution. Introducing t-Bu(2)Zn to this reaction solution afforded a cocrystalline product in the solid-state, composed of the bis-anilide 4 ((TMEDA)Na(o-C(6)H(4)-NMe(2))(2)Zn(t-Bu)) and the Me(2)N-C cleavage product 5 ({(TMEDA)(2)Na}(+){(t-Bu(2)Zn)(2)(µ-NMe(2))}(-)), which was characterised by X-ray crystallography. NMR studies of the reaction mixture that produces 4 and 5 revealed one additional species, but the mixture as a whole contained only ortho-species and a trace amount of para-species as established by iodine quenching. In an indirect variation of the bimetallic reaction, TMP(H) was added at room temperature to the reaction mixture that afforded 4 and 5. This gave the crystalline product 6 ((TMEDA)Na(TMP)(o-C(6)H(4)-NMe(2))Zn(t-Bu)), the ortho-isomer of the meta-complex 2, as determined from X-ray crystallographic and NMR data. Monitoring the regioselectivity of the reaction by iodination revealed a 16.6:1.6:1.0 ortho:meta:para ratio. Interestingly, when the TMP(H) containing solution was heated under reflux for 18 hours more meta-isomer was produced (corresponding ratio 3.7:4.2:1.0). It is likely that this change has its origin in a retro reaction that produces the original base 1 as an intermediate. Theoretical calculations at the DFT level using the B3LYP method and the 6-311G** basis set were used to probe the energetics of both monometallic and bimetallic systems. In accord with the experimental results, it was found that ortho-metallation was favoured by sodiation; whereas meta- (closely followed by para-) metallation was favoured by direct sodium-mediated zincation.
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Affiliation(s)
- David R Armstrong
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Liam Balloch
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Eva Hevia
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Alan R Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Robert E Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Charles T O'Hara
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
| | - Stuart D Robertson
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, G1 1XL, United Kingdom
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110
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Blair VL, Blakemore DC, Hay D, Hevia E, Pryde DC. Alkali-metal mediated zincation of N-heterocyclic substrates using the lithium zincate complex, (THF)Li(TMP)Zn(tBu)2 and applications in in situ cross coupling reactions. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.06.090] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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111
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Knochel P, Diène C. Preparation of functionalized Zn and Mg-organometallics. Application to the performance of diastereoselective cross-couplings. CR CHIM 2011. [DOI: 10.1016/j.crci.2011.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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112
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Duez S, Steib AK, Manolikakes SM, Knochel P. Lewis acid promoted benzylic cross-couplings of pyridines with aryl bromides. Angew Chem Int Ed Engl 2011; 50:7686-90. [PMID: 21721092 DOI: 10.1002/anie.201103074] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Stéphanie Duez
- Department Chemie, Ludwig Maximilians-Universität München, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
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113
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Duez S, Steib AK, Manolikakes SM, Knochel P. Lewis-Säure-vermittelte benzylische Kreuzkupplungen von Pyridinen mit Arylbromiden. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103074] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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114
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Mulvey RE, Armstrong DR, Conway B, Crosbie E, Kennedy AR, Robertson SD. Structurally Powered Synergic 2,2,6,6-Tetramethylpiperidine Bimetallics: New Reflections through Lithium-Mediated Ortho Aluminations. Inorg Chem 2011; 50:12241-51. [DOI: 10.1021/ic200562h] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Robert E. Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - David R. Armstrong
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Ben Conway
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Elaine Crosbie
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Alan R. Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
| | - Stuart D. Robertson
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow G1 1XL, U.K
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115
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Tamba S, Tanaka S, Okubo Y, Meguro H, Okamoto S, Mori A. Nickel-catalyzed Dehydrobrominative Polycondensation for the Practical Preparation of Regioregular Poly(3-substituted thiophene)s. CHEM LETT 2011. [DOI: 10.1246/cl.2011.398] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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116
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Duez S, Bernhardt S, Heppekausen J, Fleming FF, Knochel P. Pd-Catalyzed α-Arylation of Nitriles and Esters and γ-Arylation of Unsaturated Nitriles with TMPZnCl·LiCl. Org Lett 2011; 13:1690-3. [DOI: 10.1021/ol200194y] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stéphanie Duez
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany, and Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
| | - Sebastian Bernhardt
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany, and Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
| | - Johannes Heppekausen
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany, and Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
| | - Fraser F. Fleming
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany, and Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
| | - Paul Knochel
- Department Chemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany, and Department of Chemistry and Biochemistry, Duquesne University, 600 Forbes Avenue, Mellon Hall, Pittsburgh, Pennsylvania 15282, United States
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117
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Zimdars S, Jourdin XMD, Crestey F, Carell T, Knochel P. Trifunctionalization of the Purine Scaffold Using Mg and Zn Organometallic Intermediates. Org Lett 2011; 13:792-5. [DOI: 10.1021/ol103057k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Silvia Zimdars
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Xavier Mollat du Jourdin
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - François Crestey
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Thomas Carell
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
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118
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Bresser T, Knochel P. Selektive Magnesierung oder Zinkierung hochfunktionalisierter Alkene und Cycloalkene mit 2,2,6,6-Tetramethylpiperidylbasen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201006641] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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119
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Bresser T, Knochel P. Selective Magnesiation or Zincation of Highly Functionalized Alkenes and Cycloalkenes Using 2,2,6,6-Tetramethylpiperidyl Bases. Angew Chem Int Ed Engl 2011; 50:1914-7. [DOI: 10.1002/anie.201006641] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Indexed: 11/05/2022]
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120
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Chevallier F, Halauko YS, Pecceu C, Nassar IF, Dam TU, Roisnel T, Matulis VE, Ivashkevich OA, Mongin F. N-aryl pyrazoles: DFT calculations of CH acidity and deprotonative metallation using a combination of lithium and zinc amides. Org Biomol Chem 2011; 9:4671-84. [DOI: 10.1039/c1ob05267e] [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]
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121
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122
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Kyne SH, Percy JM, Pullin RDC, Redmond JM, Wilson PG. One-pot near-ambient temperature syntheses of aryl(difluoroenol) derivatives from trifluoroethanol. Org Biomol Chem 2011; 9:8328-39. [DOI: 10.1039/c1ob06372c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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123
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Knochel P, Thaler T, Diene C. Pd-, Ni-, Fe-, and Co-Catalyzed Cross-Couplings Using Functionalized Zn-, Mg-, Fe-, and In-Organometallics. Isr J Chem 2010. [DOI: 10.1002/ijch.201000033] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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124
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Bresser T, Monzon G, Mosrin M, Knochel P. Scaleable Preparation of Sensitive Functionalized Aromatics and Heteroaromatics via Directed Metalation Using tmpZnCl·LiCl. Org Process Res Dev 2010. [DOI: 10.1021/op1001935] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tomke Bresser
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Gabriel Monzon
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Marc Mosrin
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Paul Knochel
- Ludwig-Maximilians-Universität München, Department Chemie, Butenandtstrasse 5-13, Haus F, 81377 München, Germany
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125
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Jeganmohan M, Knochel P. tmp4Zr: eine atomökonomische Base zur Metallierung von funktionalisierten Arenen und Heteroarenen. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003558] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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126
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Jeganmohan M, Knochel P. tmp4Zr: An Atom-Economical Base for the Metalation of Functionalized Arenes and Heteroarenes. Angew Chem Int Ed Engl 2010; 49:8520-4. [DOI: 10.1002/anie.201003558] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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127
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Campbell R, García-Álvarez P, Kennedy AR, Mulvey RE. Synergic transformation of an ethylenediamine to a lithium 1,3-diaza-2-zincacyclopentene via an alkyllithium/bis(alkyl)zinc mixture. Chemistry 2010; 16:9964-8. [PMID: 20645359 PMCID: PMC3784041 DOI: 10.1002/chem.201001314] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2010] [Accepted: 07/19/2010] [Indexed: 11/13/2022]
Affiliation(s)
- Ross Campbell
- WestCHEM, Department of Pure and Applied Chemistry, University of StrathclydeGlasgow G1 1XL (UK)
| | - Pablo García-Álvarez
- WestCHEM, Department of Pure and Applied Chemistry, University of StrathclydeGlasgow G1 1XL (UK)
| | - Alan R Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of StrathclydeGlasgow G1 1XL (UK)
| | - Robert E Mulvey
- WestCHEM, Department of Pure and Applied Chemistry, University of StrathclydeGlasgow G1 1XL (UK)
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128
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Jaric M, Haag B, Unsinn A, Karaghiosoff K, Knochel P. Hoch selektive Metallierungen von Pyridinen und verwandten Heterocyclen mithilfe frustrierter Lewis-Paare sowie tmp-Zink- und tmp-Magnesium-Basen mit BF3⋅OEt2. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002031] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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129
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Jaric M, Haag B, Unsinn A, Karaghiosoff K, Knochel P. Highly Selective Metalations of Pyridines and Related Heterocycles Using New Frustrated Lewis Pairs or tmp-Zinc and tmp-Magnesium Bases with BF3⋅OEt2. Angew Chem Int Ed Engl 2010; 49:5451-5. [DOI: 10.1002/anie.201002031] [Citation(s) in RCA: 118] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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130
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Valente C, Belowich ME, Hadei N, Organ MG. Pd‐PEPPSI Complexes and the Negishi Reaction. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000359] [Citation(s) in RCA: 192] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cory Valente
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, USA 60208
| | - Matthew E. Belowich
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL, USA 60208
| | - Niloufar Hadei
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, Canada M3J 1P3, Fax: +1‐416‐736‐5936 http://www.yorku.ca/organ
| | - Michael G. Organ
- Department of Chemistry, York University, 4700 Keele Street, Toronto, ON, Canada M3J 1P3, Fax: +1‐416‐736‐5936 http://www.yorku.ca/organ
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131
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Bresser T, Mosrin M, Monzon G, Knochel P. Regio- and Chemoselective Zincation of Sensitive and Moderately Activated Aromatics and Heteroaromatics Using TMPZnCl·LiCl. J Org Chem 2010; 75:4686-95. [DOI: 10.1021/jo100884u] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tomke Bresser
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Marc Mosrin
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Gabriel Monzon
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstrasse 5-13, Haus F, 81377 München, Germany
| | - Paul Knochel
- Ludwig-Maximilians-Universität München Department Chemie Butenandtstrasse 5-13, Haus F, 81377 München, Germany
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132
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Deprotonative Metalation of Substituted Benzenes and Heteroaromatics Using Amino/Alkyl Mixed Lithium-Zinc Combinations. Chemistry 2010; 16:8191-201. [DOI: 10.1002/chem.201000543] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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133
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Snégaroff K, Komagawa S, Yonehara M, Chevallier F, Gros PC, Uchiyama M, Mongin F. Lithium Cadmate-Mediated Deprotonative Metalation of Anisole: Experimental and Computational Study. J Org Chem 2010; 75:3117-20. [DOI: 10.1021/jo100150s] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Katia Snégaroff
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
| | - Shinsuke Komagawa
- The Institute of Physical and Chemical Research, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Mitsuhiro Yonehara
- The Institute of Physical and Chemical Research, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Floris Chevallier
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
| | - Philippe C. Gros
- SOR, SRSMC, CNRS, Université de Nancy, Boulevard des Aiguillettes, 54506 Vandœuvre-Lès-Nancy, France
| | - Masanobu Uchiyama
- The Institute of Physical and Chemical Research, RIKEN, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Florence Mongin
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
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134
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MacIntosh IS, Sherren CN, Robertson KN, Masuda JD, Pye CC, Clyburne JAC. Isolation and Structures of Two New Organozinc Anions from Solutions Rich in Halide Ions. Organometallics 2010. [DOI: 10.1021/om901097r] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ian S. MacIntosh
- Department of Chemistry, Saint Mary’s University, Halifax, NS, B3H 3C3, Canada
| | - Cody N. Sherren
- Department of Chemistry, Saint Mary’s University, Halifax, NS, B3H 3C3, Canada
| | | | - Jason D. Masuda
- Department of Chemistry, Saint Mary’s University, Halifax, NS, B3H 3C3, Canada
| | - Cory C. Pye
- Department of Chemistry, Saint Mary’s University, Halifax, NS, B3H 3C3, Canada
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135
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Truong T, Alvarado J, Tran LD, Daugulis O. Nickel, manganese, cobalt, and iron-catalyzed deprotonative arene dimerization. Org Lett 2010; 12:1200-3. [PMID: 20192197 PMCID: PMC2840611 DOI: 10.1021/ol902970z] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A number of first-row transition metal salts catalyze deprotonative dimerization of acidic arenes. Under the atmosphere of oxygen, nickel, manganese, cobalt, and iron chlorides have been shown to dimerize five- and six-membered ring heterocycles as well as electron-poor arenes. Both tetramethylpiperidide and dicyclohexylamide bases can be employed; however, the former afford slightly higher yields.
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Affiliation(s)
- Thanh Truong
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
| | - Joseph Alvarado
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
| | - Ly Dieu Tran
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
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136
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Wunderlich S, Knochel P. Atom-Economical Preparation of Aryl- and Heteroaryl-Lanthanum Reagents by Directedortho-Metalation by Using tmp3[La]. Chemistry 2010; 16:3304-7. [DOI: 10.1002/chem.200903157] [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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137
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Hirono Y, Kobayashi K, Yonemoto M, Kondo Y. Metal-free deprotonative functionalization of heteroaromatics using organic superbase catalyst. Chem Commun (Camb) 2010; 46:7623-4. [DOI: 10.1039/c0cc03106b] [Citation(s) in RCA: 23] [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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138
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Achonduh GT, Hadei N, Valente C, Avola S, O'Brien CJ, Organ MG. On the role of additives in alkyl–alkyl Negishi cross-couplings. Chem Commun (Camb) 2010; 46:4109-11. [DOI: 10.1039/c002759f] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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139
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Naka H, Ito K, Ueno M, Kobayashi K, Kondo Y. Generation of arylzinc reagents through an iodine–zinc exchange reaction promoted by a non-metallic organic superbase. NEW J CHEM 2010. [DOI: 10.1039/c0nj00202j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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140
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Bentabed-Ababsa G, Cheikh Sid Ely S, Hesse S, Nassar E, Chevallier F, Nguyen TT, Derdour A, Mongin F. Direct Metalation of Heteroaromatic Esters and Nitriles Using a Mixed Lithium−Cadmium Base. Subsequent Conversion to Dipyridopyrimidinones. J Org Chem 2009; 75:839-47. [DOI: 10.1021/jo902385h] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ghenia Bentabed-Ababsa
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
- Laboratoire de Synthèse Organique Appliquée, Faculté des Sciences de l’Université, BP 1524 Es-Senia, Oran 31000, Algeria
| | - Sidaty Cheikh Sid Ely
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
| | - Stéphanie Hesse
- Laboratoire d’Ingéniérie Moléculaire et Biochimie Pharmacologique, Institut Jean Barriol, FR CNRS 2843, Université Paul Verlaine-Metz, 1 Boulevard Arago, 57070 Metz Technopôle, France
| | - Ekhlass Nassar
- Department of Chemistry, Faculty of Women for Arts, Science and Education, Ain Shams University, Asma Fahmy Street, Heleopolis (El-Margany), Cairo, Egypt
| | - Floris Chevallier
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
| | - Tan Tai Nguyen
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
| | - Aïcha Derdour
- Laboratoire de Synthèse Organique Appliquée, Faculté des Sciences de l’Université, BP 1524 Es-Senia, Oran 31000, Algeria
| | - Florence Mongin
- Chimie et Photonique Moléculaires, UMR 6510 CNRS, Université de Rennes 1, Bâtiment 10A, Case 1003, Campus Scientifique de Beaulieu, 35042 Rennes, France
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141
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Mosrin M, Bresser T, Knochel P. Regio- and chemoselective multiple functionalization of chloropyrazine derivatives. Application to the synthesis of coelenterazine. Org Lett 2009; 11:3406-9. [PMID: 19719188 DOI: 10.1021/ol901275n] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Successive regio- and chemoselective metalations of chloropyrazines using TMPMgCl x LiCl and TMPZnCl x LiCl furnish, after trapping with electrophiles, highly functionalized pyrazines in high yields. Application to a synthesis of coelenterazine, a bioluminescent natural product in jellyfish Aequorea victoria, in nine steps (9% overall yield) is reported.
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Affiliation(s)
- Marc Mosrin
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377, München, Germany
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142
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Abstract
A general method for copper-catalyzed deprotonative dimerization of arenes by employing oxygen as the terminal oxidant has been developed. Electron-rich and electron-poor heterocycles as well as electron-poor arenes are reactive. The method is tolerant to functionalities such as nitro, cyano, dialkylamino, and ester groups.
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Affiliation(s)
- Hien-Quang Do
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
| | - Olafs Daugulis
- Department of Chemistry, University of Houston, Houston, TX 77204-5003
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143
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Nguyen TT, Chevallier F, Jouikov V, Mongin F. New Gilman-type lithium cuprate from a copper(II) salt: synthesis and deprotonative cupration of aromatics. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.100] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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144
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Wunderlich S, Knochel P. Synthese funktionalisierter Aryl-Eisen(II)-Verbindungen und eine Nickel-katalysierte Kreuzkupplung mit Alkylhalogeniden. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200905196] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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145
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Wunderlich S, Knochel P. Preparation of Functionalized Aryl Iron(II) Compounds and a Nickel-Catalyzed Cross-Coupling with Alkyl Halides. Angew Chem Int Ed Engl 2009; 48:9717-20. [DOI: 10.1002/anie.200905196] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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146
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Marek I. The Basics of Zinc Activation. Science 2009; 326:673-4. [DOI: 10.1126/science.1181863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The stubborn carbon-hydrogen bonds of an organic compound can be replaced by more reactive carbon-zinc bonds.
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Affiliation(s)
- Ilan Marek
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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147
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Snégaroff K, L'Helgoual'ch JM, Bentabed-Ababsa G, Nguyen TT, Chevallier F, Yonehara M, Uchiyama M, Derdour A, Mongin F. Deprotonative Metalation of Functionalized Aromatics Using Mixed Lithium-Cadmium, Lithium-Indium, and Lithium-Zinc Species. Chemistry 2009; 15:10280-90. [DOI: 10.1002/chem.200901432] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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148
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Wunderlich S, Kienle M, Knochel P. Gesteuerte Manganierung funktionalisierter Arene und Heterocyclen mithilfe von tmp2Mn⋅2 MgCl2⋅4 LiCl. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903505] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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149
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Wunderlich S, Kienle M, Knochel P. Directed Manganation of Functionalized Arenes and Heterocycles Using tmp2Mn⋅2 MgCl2⋅4 LiCl. Angew Chem Int Ed Engl 2009; 48:7256-60. [DOI: 10.1002/anie.200903505] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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150
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Despotopoulou C, Klier L, Knochel P. Synthesis of Fully Substituted Pyrazoles via Regio- and Chemoselective Metalations. Org Lett 2009; 11:3326-9. [DOI: 10.1021/ol901208d] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christina Despotopoulou
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Lydia Klier
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
| | - Paul Knochel
- Department Chemie & Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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