101
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Takahama Y, Shibata Y, Tanaka K. Concise Synthesis of Fungal Metabolite (+)-Fusarochromanone via Rhodium(III)-catalyzed Oxidative sp2C–H Bond Olefination. CHEM LETT 2016. [DOI: 10.1246/cl.160530] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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102
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Fumagalli F, da Silva Emery F. Charting the Chemical Reactivity Space of 2,3-Substituted Furo[2,3-b]pyridines Synthesized via the Heterocyclization of Pyridine-N-oxide Derivatives. J Org Chem 2016; 81:10339-10347. [PMID: 27459479 DOI: 10.1021/acs.joc.6b01329] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A concise strategy for the synthesis of 2,3-substituted furo[2,3-b]pyridines is described. Mild, metal-free conditions were successfully applied to produce a range of 2-(alkyl or aryl)-3-ethylcarboxylate-furo[2,3-b]pyridines in yields of 50-91%. Then, the chemical reactivity of this heterocyclic framework was explored to develop straightforward methods for its functionalization. The pyridine moiety reactivity was successfully explored by C-H amination and borylation reactions, although C-H fluorination and radical C-H arylation processes were not as efficient. In addition, while the furopyridine core proved stable under basic conditions, the ring-opening reaction of the furan moiety with hydrazine generated a valuable new pyridine-dihydropyrazolone scaffold.
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Affiliation(s)
- Fernando Fumagalli
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo , 14040-903 Ribeirão Preto-SP, Brazil
| | - Flavio da Silva Emery
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo , 14040-903 Ribeirão Preto-SP, Brazil
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103
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Li JL, Li WZ, Wang YC, Ren Q, Wang HS, Pan YM. Palladium(ii)-catalyzed C-C and C-O bond formation for the synthesis of C1-benzoyl isoquinolines from isoquinoline N-oxides and nitroalkenes. Chem Commun (Camb) 2016; 52:10028-31. [PMID: 27443150 DOI: 10.1039/c6cc03530b] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
C1-Benzoyl isoquinolines can be generated via a palladium(ii)-catalyzed C-C and C-O coupling of isoquinoline N-oxides with aromatic nitroalkenes. The reaction proceeds through remote C-H bond activation and subsequent intramolecular oxygen atom transfer (OAT). In this reaction, the N-O bond was designed as a directing group in the C-H bond activation as well as the source of an oxygen atom.
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Affiliation(s)
- Jiu-Ling Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Wei-Ze Li
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Ying-Chun Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China. and College of Chemistry and Chemical Engineering, Jishou University, Jishou 416000, People's Republic of China
| | - Qiu Ren
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Heng-Shan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China.
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104
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Zhao X, Liu TX, Ma N, Zhang Z, Zhang G. Multicomponent reaction of pyridine, acetoacetamide/benzoylacetamides and sulfuryl chlorides: regioselective construction of 4-olefinated dihydropyridines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.06.068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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105
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Sahoo SK. An unprecedented oxidative intermolecular homo coupling reaction between two sp3C–sp3C centers under metal-free condition. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.092] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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106
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Maity S, Kancherla R, Dhawa U, Hoque E, Pimparkar S, Maiti D. Switch to Allylic Selectivity in Cobalt-Catalyzed Dehydrogenative Heck Reactions with Unbiased Aliphatic Olefins. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01816] [Citation(s) in RCA: 144] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Uttam Dhawa
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ehtasimul Hoque
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sandeep Pimparkar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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107
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Fan Z, Ni J, Zhang A. Meta-Selective CAr–H Nitration of Arenes through a Ru3(CO)12-Catalyzed Ortho-Metalation Strategy. J Am Chem Soc 2016; 138:8470-5. [DOI: 10.1021/jacs.6b03402] [Citation(s) in RCA: 214] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zhoulong Fan
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiabin Ni
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research, and Synthetic Organic & Medicinal Chemistry Laboratory (SOMCL), Shanghai Institute of Materia Medica (SIMM), Chinese Academy of Sciences, Shanghai 201203, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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108
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Yamada S, Murakami K, Itami K. Regiodivergent Cross-Dehydrogenative Coupling of Pyridines and Benzoxazoles: Discovery of Organic Halides as Regio-Switching Oxidants. Org Lett 2016; 18:2415-8. [DOI: 10.1021/acs.orglett.6b00932] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Shuya Yamada
- Institute
of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of
Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Kei Murakami
- Institute
of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of
Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
| | - Kenichiro Itami
- Institute
of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of
Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan
- JST,
ERATO, Itami Molecular Nanocarbon Project, Nagoya University, Chikusa, Nagoya 464-8602, Japan
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109
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Jiao J, Murakami K, Itami K. Palladium-catalyzed C–H Arylation of Pyridines with Aryl Triflates. CHEM LETT 2016. [DOI: 10.1246/cl.160133] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jiao Jiao
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, Nagoya University
| | - Kei Murakami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, Nagoya University
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Graduate School of Science, Nagoya University
- JST, ERATO, Itami Molecular Nanocarbon Project, Nagoya University
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110
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White PB, Jaworski JN, Fry CG, Dolinar BS, Guzei IA, Stahl SS. Structurally Diverse Diazafluorene-Ligated Palladium(II) Complexes and Their Implications for Aerobic Oxidation Reactions. J Am Chem Soc 2016; 138:4869-80. [PMID: 26967703 PMCID: PMC4863657 DOI: 10.1021/jacs.6b01188] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
4,5-Diazafluoren-9-one (DAF) has been identified as a highly effective ligand in a number of Pd-catalyzed oxidation reactions, but the mechanistic basis for its utility has not been elucidated. Here, we present the complex coordination chemistry of DAF and palladium(II) carboxylate salts. Multiple complexes among an equilibrating mixture of species have been characterized by (1)H and (15)N NMR spectroscopy and X-ray crystallography. These complexes include monomeric and dimeric Pd(II) species, with monodentate (κ(1)), bidentate (κ(2)), and bridging (μ:κ(1):κ(1)) DAF coordination modes. Titration studies of DAF and Pd(OAc)2 reveal the formation of two dimeric DAF/Pd(OAc)2 complexes at low [DAF] and four monomeric species at higher [DAF]. The dimeric complexes feature two bridging acetate ligands together with either a bridging or nonbridging (κ(1)) DAF ligand coordinated to each Pd(II) center. The monomeric structures consist of three isomeric Pd(κ(1)-DAF)2(OAc)2 complexes, together with Pd(κ(2)-DAF)(OAc)2 in which the DAF exhibits a traditional bidentate coordination mode. Replacing DAF with the structurally related, but more-electron-rich derivative 9,9-dimethyl-4,5-diazafluorene (Me2DAF) simplifies the equilibrium mixture to two complexes: a dimeric species in which the Me2DAF bridges the two Pd centers and a monomeric species with a traditional κ(2)-Me2DAF coordination mode. The use of DAF in combination with other carboxylate ligands (CF3CO2(-) or tBuCO2(-)) also results in a simplified collection of equilibrating Pd(II)-DAF complexes. Collectively, the results highlight the ability of DAF to equilibrate rapidly among multiple coordination modes, and provide valuable insights into the utility of DAF as a ligand in Pd-catalyzed oxidation reactions.
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Affiliation(s)
- Paul B. White
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Jonathan N. Jaworski
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Charles G. Fry
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Brian S. Dolinar
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Ilia A. Guzei
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706
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111
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Mao J, Yang X, Wang D, Zhang Y. Pd-catalyzed oxidative olefination of arenes with olefins via C–H activation: Retention of the leaving group. RUSS J APPL CHEM+ 2016. [DOI: 10.1134/s1070427215012023x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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112
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Affiliation(s)
- Yuexuan Li
- Center for Organic Chemistry,
Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, 710054, P. R. China
| | - Gongda Deng
- Center for Organic Chemistry,
Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, 710054, P. R. China
| | - Xiaoming Zeng
- Center for Organic Chemistry,
Frontier Institute of Science and Technology, Xi’an Jiaotong University, Xi’an, Shaanxi, 710054, P. R. China
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113
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Liu XW, Shi JL, Wei JB, Yang C, Yan JX, Peng K, Dai L, Li CG, Wang BQ, Shi ZJ. Diversified syntheses of multifunctionalized thiazole derivatives via regioselective and programmed C-H activation. Chem Commun (Camb) 2016; 51:4599-602. [PMID: 25687354 DOI: 10.1039/c4cc10419f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The sequential construction of diversified multifunctionalized thiazole derivatives through Pd-catalyzed regioselective C-H alkenylation has been accomplished. This versatile approach provides the diversified thiazole derivatives featuring orthogonal substitution patterns at the C-2, C-4 and C-5 positions from mono-substituted (2- or 4-substituted) thiazole derivatives or even more challenging simple thiazole.
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Affiliation(s)
- Xiang-Wei Liu
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China.
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114
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Li S, Cai L, Ji H, Yang L, Li G. Pd(II)-catalysed meta-C-H functionalizations of benzoic acid derivatives. Nat Commun 2016; 7:10443. [PMID: 26813919 PMCID: PMC4737847 DOI: 10.1038/ncomms10443] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Accepted: 12/09/2015] [Indexed: 12/21/2022] Open
Abstract
Benzoic acids are highly important structural motifs in drug molecules and natural products. Selective C–H bond functionalization of benzoic acids will provide synthetically useful tools for step-economical organic synthesis. Although direct ortho-C–H functionalizations of benzoic acids or their derivatives have been intensely studied, the ability to activate meta-C–H bond of benzoic acids or their derivatives in a general manner via transition-metal catalysis has been largely unsuccessful. Although chelation-assisted meta-C–H functionalization of electron-rich arenes was reported, chelation-assisted meta-C–H activation of electron-poor arenes such as benzoic acid derivatives remains a formidable challenge. Herein, we report a general protocol for meta-C–H olefination of benzoic acid derivatives using a nitrile-based sulfonamide template. A broad range of benzoic acid derivatives are meta-selectively olefinated using molecular oxygen as the terminal oxidant. The meta-C–H acetoxylation, product of which is further transformed at the meta-position, is also reported. While directed ortho-metalation is a well-established protocol, meta-functionalisation of aromatic groups is more challenging. Here, the authors report a directed meta-C-H functionalisation of benzoic acid derivatives, using a nitrile-based sulfonamide directing group.
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Affiliation(s)
- Shangda Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian 350002, China
| | - Lei Cai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian 350002, China
| | - Huafang Ji
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian 350002, China
| | - Long Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian 350002, China
| | - Gang Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian 350002, China.,Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, CAS, Fujian 350002, China
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115
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Yang Y, Zhu C, Zhang M, Huang S, Lin J, Pan X, Su W. Condensation of anthranilic acids with pyridines to furnish pyridoquinazolones via pyridine dearomatization. Chem Commun (Camb) 2016; 52:12869-12872. [DOI: 10.1039/c6cc07365d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The unprecedented carbodiimide-mediated condensation between pyridines and anthranilic acids at room temperature has been developed for pyridoquinazolones.
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Affiliation(s)
- Yajun Yang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- and Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
| | - Cuiju Zhu
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Min Zhang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Shijun Huang
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
| | - Jingjing Lin
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- and Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
| | - Xiandao Pan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines
- and Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing 100050
| | - Weiping Su
- State Key Laboratory of Structural Chemistry
- Fujian Institute of Research on the Structure of Matter
- Chinese Academy of Sciences
- Fuzhou
- China
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116
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Wang CA, Han YF, Li YW, Nie K, Cheng XL, Zhang JP. Bipyridyl palladium embedded porous organic polymer as highly efficient and reusable heterogeneous catalyst for Suzuki–Miyaura coupling reaction. RSC Adv 2016. [DOI: 10.1039/c6ra03331h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Bipyridyl-palladium catalyst embedded porous organic polymers (Bpy-Pd-POP) was synthesized and used as highly effective and reusable heterogeneous catalyst for the Suzuki–Miyaura coupling reaction.
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Affiliation(s)
- Chang-An Wang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yin-Feng Han
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Yan-Wei Li
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Kun Nie
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Xue-Li Cheng
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
| | - Jian-Ping Zhang
- College of Chemistry and Chemical Engineering
- Taishan University
- Tai'an
- P. R. China
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117
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Wang Y, Wang Y, Jiang K, Zhang Q, Li D. Transition-metal-free oxidative C5 C–H-halogenation of 8-aminoquinoline amides using sodium halides. Org Biomol Chem 2016; 14:10180-10184. [PMID: 27753444 DOI: 10.1039/c6ob02079h] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A simple and efficient transition-metal-free oxidative halogenation (Cl, Br) of the C5 C–H bond of 8-aminoquinoline amides, with low-cost and innoxious sodium halides, has been developed.
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Affiliation(s)
- Ying Wang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Yang Wang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Kai Jiang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
| | - Qian Zhang
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
- Hubei Key Laboratory of Drug Synthesis and Optimization
| | - Dong Li
- School of Materials and Chemical Engineering
- Hubei University of Technology
- Wuhan 430068
- China
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118
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Yang G, Butt N, Zhang W. Recent advances of remote selective C–H activation: Ligand and template design. CHINESE JOURNAL OF CATALYSIS 2016. [DOI: 10.1016/s1872-2067(15)61008-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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119
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Ouyang JS, Li YF, Shen DS, Ke Z, Liu FS. Bulky α-diimine palladium complexes: highly efficient for direct C–H bond arylation of heteroarenes under aerobic conditions. Dalton Trans 2016; 45:14919-27. [DOI: 10.1039/c6dt02544g] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Through the strategy to enhance the bulkiness on both the backbone and the N-aryl moieties, we designed and synthesized a type of bulky α-diimine palladium complex (i.e., {[Ar–NC(R)–C(R)N–Ar]PdCl2, (Ar = 2-benzhydryl-4,6-dimethylphenyl)}, C1, R = H; C2, R = An; C3, R = Ph).
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Affiliation(s)
- Jia-Sheng Ouyang
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan
- China
| | - Yan-Fang Li
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan
- China
| | - Dong-Sheng Shen
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan
- China
| | - Zhuofeng Ke
- School of Materials Science and Engineering
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- Sun Yat-sen University
- Guangzhou 510275
- China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Zhongshan
- China
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120
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Yuen OY, So CM, Kwong FY. Open-air oxidative Mizoroki–Heck reaction of arylsulfonyl hydrazides with alkenes. RSC Adv 2016. [DOI: 10.1039/c6ra03188a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A palladium(ii)-catalyzed oxidative Mizoroki–Heck reaction of arylsulfonyl hydrazides with alkenes was developed employing Pd(OAc)2 and pyridine ligand L9 as a catalyst system and atmospheric air as the sole oxidant in an open-vessel manner.
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Affiliation(s)
- On Ying Yuen
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kwoloon
- China
| | - Chau Ming So
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kwoloon
- China
| | - Fuk Yee Kwong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology
- The Hong Kong Polytechnic University
- Kwoloon
- China
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121
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Affiliation(s)
- Su Jin Han
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Hyun Tae Kim
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jung Min Joo
- Department of Chemistry and
Chemistry Institute of Functional Materials, Pusan National University, Busan 46241, Republic of Korea
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122
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Zhang C, Santiago CB, Crawford JM, Sigman MS. Enantioselective Dehydrogenative Heck Arylations of Trisubstituted Alkenes with Indoles to Construct Quaternary Stereocenters. J Am Chem Soc 2015; 137:15668-71. [PMID: 26624236 DOI: 10.1021/jacs.5b11335] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An enantioselective, intermolecular dehydrogenative Heck arylation of trisubstituted alkenes to construct remote quaternary stereocenters has been developed. Using a new chiral pyridine oxazoline ligand, good to high enantioselectivity is achieved for various combinations of indole derivatives and trisubstituted alkenes. However, some combinations of substrates led to lower enantioselectivity, which provided the impetus to use structure enantioselectivity correlations to design a better performing ligand.
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Affiliation(s)
- Chun Zhang
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Celine B Santiago
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Jennifer M Crawford
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
| | - Matthew S Sigman
- Department of Chemistry, University of Utah , Salt Lake City, Utah 84112, United States
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123
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Oh KH, Kim SM, Lee MJ, Park JK. Palladium-Catalyzed Direct Arylations of 1,2-Azolo[1,5-a]pyridines using Copper(I) Chloride as a Lewis Acid Activator and the Synthesis of 2,6-Disubstituted Pyridines. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500726] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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124
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Xue X, Xu J, Zhang L, Xu C, Pan Y, Xu L, Li H, Zhang W. Rhodium(III)-Catalyzed Direct CH Olefination of Arenes with Aliphatic Olefins. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500697] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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125
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Stephens DE, Larionov OV. Recent Advances in the C-H-Functionalization of the Distal Positions in Pyridines and Quinolines. Tetrahedron 2015; 71:8683-8716. [PMID: 26640303 PMCID: PMC4666591 DOI: 10.1016/j.tet.2015.08.034] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This review summarizes recent developments in the C-H-functionalization of the distal positions of pyridines, quinolines and related azaheterocycles. While the functionalization of the C2 position has been known for a long time and is facilitated by the proximity to N1, regioselective reactions in the distal positions are more difficult to achieve and have only emerged in the last decade. Recent advances in the transition metal-catalyzed distal C-H-functionalization of these synthetically-important azaheterocycles are discussed in detail, with the focus on the scope, site-selectivity and mechanistic aspects of the reactions.
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Affiliation(s)
- David E. Stephens
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, 78249, United States
| | - Oleg. V. Larionov
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, Texas, 78249, United States
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126
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Liu C, Yuan J, Gao M, Tang S, Li W, Shi R, Lei A. Oxidative Coupling between Two Hydrocarbons: An Update of Recent C–H Functionalizations. Chem Rev 2015; 115:12138-204. [DOI: 10.1021/cr500431s] [Citation(s) in RCA: 836] [Impact Index Per Article: 92.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chao Liu
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Jiwen Yuan
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Meng Gao
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
| | - Shan Tang
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Wu Li
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Renyi Shi
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Institute for Advanced Studies
(IAS), Wuhan University, Wuhan 430072, People’s Republic of China
- National
Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang, Jiangxi 330022, People’s Republic of China
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127
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Guo K, Chen X, Zhang J, Zhao Y. Palladium(II)-Catalyzed Acetoxime Directedortho-Arylation of Aromatic Alcohols. Chemistry 2015; 21:17474-8. [DOI: 10.1002/chem.201503284] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 01/26/2023]
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128
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Li S, Ji H, Cai L, Li G. Pd(ii)-catalyzed remote regiodivergent ortho- and meta-C-H functionalizations of phenylethylamines. Chem Sci 2015; 6:5595-5600. [PMID: 29861897 PMCID: PMC5949857 DOI: 10.1039/c5sc01737h] [Citation(s) in RCA: 129] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 06/24/2015] [Indexed: 12/11/2022] Open
Abstract
Site selectivity control is of vital importance in the direct functionalization of inert C-H bonds. Reported here is a novel example of remote regiodivergent ortho- and meta-C-H bond functionalizations of phenylethylamine derivatives by using a novel 2-cyanobenzoyl group as the original directing functionality, where the regioselectivity was adjusted by a methylation. The potential of the method was exemplified by sequential functionalizations of both ortho- and meta-C-H bonds of a phenylethylamine derivative in a streamlined manner.
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Affiliation(s)
- Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yang-Qiao Road , Fuzhou , Fujian 350002 , P. R. China .
| | - Huafang Ji
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yang-Qiao Road , Fuzhou , Fujian 350002 , P. R. China .
| | - Lei Cai
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yang-Qiao Road , Fuzhou , Fujian 350002 , P. R. China .
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology , Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , 155 West Yang-Qiao Road , Fuzhou , Fujian 350002 , P. R. China .
- State Key Laboratory of Structural Chemistry , Chinese Academy of Sciences , Fuzhou , Fujian 350002 , P. R. China
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129
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Bag S, Patra T, Modak A, Deb A, Maity S, Dutta U, Dey A, Kancherla R, Maji A, Hazra A, Bera M, Maiti D. Remote para-C-H Functionalization of Arenes by a D-Shaped Biphenyl Template-Based Assembly. J Am Chem Soc 2015; 137:11888-91. [PMID: 26361337 DOI: 10.1021/jacs.5b06793] [Citation(s) in RCA: 254] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Site-selective C-H functionalization has emerged as an efficient tool in simplifying the synthesis of complex molecules. Most often, directing group (DG)-assisted metallacycle formation serves as an efficient strategy to ensure promising regioselectivity. A wide variety of ortho- and meta-C-H functionalizations stand as examples in this regard. Yet despite this significant progress, DG-assisted selective para-C-H functionalization in arenes has remained unexplored, mainly because it involves the formation of a geometrically constrained metallacyclic transition state. Here we report an easily recyclable, novel Si-containing biphenyl-based template that directs efficient functionalization of the distal p-C-H bond of toluene by forming a D-shaped assembly. This DG allows the required flexibility to support the formation of an oversized pre-transition state. By overcoming electronic and steric bias, para-olefination and acetoxylation were successfully performed while undermining o- and m-C-H activation. The applicability of this D-shaped biphenyl template-based strategy is demonstrated by synthesizing various complex molecules.
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Affiliation(s)
- Sukdev Bag
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Tuhin Patra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Atanu Modak
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Aniruddha Dey
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arun Maji
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Milan Bera
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
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130
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Pd- and Ni-Pyridyl Complexes Deposited as Films for Suzuki–Miyaura and Mizoroki–Heck Cross Coupling Reactions. Catal Letters 2015. [DOI: 10.1007/s10562-015-1614-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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131
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Kuninobu Y, Ida H, Nishi M, Kanai M. A meta-selective C–H borylation directed by a secondary interaction between ligand and substrate. Nat Chem 2015; 7:712-7. [DOI: 10.1038/nchem.2322] [Citation(s) in RCA: 375] [Impact Index Per Article: 41.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2015] [Accepted: 07/08/2015] [Indexed: 12/23/2022]
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132
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Landge VG, Sahoo MK, Midya SP, Jaiswal G, Balaraman E. Well-defined palladium(ii) complexes for ligand-enabled C(sp(3))-alkynylation. Dalton Trans 2015; 44:15382-6. [PMID: 26243558 DOI: 10.1039/c5dt02772a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The first example of ligand-enabled C(sp(3))-alkynylation of 8-methylquinoline is reported. The reaction is catalysed by well-defined Pd(ii) complexes. The present C(sp(3))-alkynylation has a broad substrate scope as well as functional group tolerance and proceeds efficiently under mild conditions.
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Affiliation(s)
- Vinod G Landge
- Catalysis Division, Dr. Homi Bhabha Road, CSIR-National Chemical Laboratory (CSIR-NCL), Pune 411008, India.
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133
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Iwai T, Sawamura M. Transition-Metal-Catalyzed Site-Selective C–H Functionalization of Quinolines beyond C2 Selectivity. ACS Catal 2015. [DOI: 10.1021/acscatal.5b01143] [Citation(s) in RCA: 183] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Tomohiro Iwai
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Masaya Sawamura
- Department
of Chemistry,
Faculty of Science, Hokkaido University, Sapporo 060-0810, Japan
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134
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Gou Q, Deng B, Qin J. Palladium-Catalyzed Arylation of (Di)azinyl Aldoxime Ethers by Aryl Iodides: Stereoselective Synthesis of Unsymmetrical (E)-(Di)azinylaryl Ketoxime Ethers. Chemistry 2015. [DOI: 10.1002/chem.201501758] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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135
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Shiba Y, Inagaki A, Akita M. C–C Bond Forming Reductive Elimination from Diarylplatinum Complexes Driven by Visible-Light-Mediated Photoredox Reactions. Organometallics 2015. [DOI: 10.1021/om501080v] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yuichiro Shiba
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Akiko Inagaki
- Department
of Chemistry, Graduate School of Science and Engineering, Tokyo Metropolitan University, Minami-Osawa 1-1, Hachioji, Tokyo 192-0397, Japan
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, R1-27, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
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136
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Sharma R, Thakur K, Kumar R, Kumar I, Sharma U. Distant C-H Activation/Functionalization: A New Horizon of Selectivity Beyond Proximity. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2015. [DOI: 10.1080/01614940.2015.1058623] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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137
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Duan H, Li M, Zhang G, Gallagher JR, Huang Z, Sun Y, Luo Z, Chen H, Miller JT, Zou R, Lei A, Zhao Y. Single-Site Palladium(II) Catalyst for Oxidative Heck Reaction: Catalytic Performance and Kinetic Investigations. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00569] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hui Duan
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Menghuan Li
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Guanghui Zhang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - James R. Gallagher
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Zhiliang Huang
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Yu Sun
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Zhong Luo
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Hongzhong Chen
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
| | - Jeffrey T. Miller
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Ruqiang Zou
- Department of Materials Science and Engineering,
College of Engineering, Peking University, Beijing 100871, People’s Republic of China
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, People’s Republic of China
| | - Yanli Zhao
- Division of Chemistry and Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore
- School
of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
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138
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Takahama Y, Shibata Y, Tanaka K. Oxidative Olefination of Anilides with Unactivated Alkenes Catalyzed by an (Electron-Deficient η5-Cyclopentadienyl)Rhodium(III) Complex Under Ambient Conditions. Chemistry 2015; 21:9053-6. [DOI: 10.1002/chem.201501232] [Citation(s) in RCA: 90] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Indexed: 01/19/2023]
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139
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Thenarukandiyil R, Choudhury J. Rhodium(III)-Catalyzed Activation and Functionalization of Pyridine C–H Bond by Exploring a Unique Double Role of “N-Heterocyclic Carbene–Pyridyl” Ligand Platform. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00157] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ranjeesh Thenarukandiyil
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Indore By-pass Road, Bhopal 462 066, India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Indore By-pass Road, Bhopal 462 066, India
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140
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Song G, Wang B, Nishiura M, Hou Z. Catalytic CH Bond Addition of Pyridines to Allenes by a Rare-Earth Catalyst. Chemistry 2015; 21:8394-8. [DOI: 10.1002/chem.201501121] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Indexed: 01/04/2023]
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141
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Cooper SP, Booker-Milburn KI. A Palladium(II)-Catalyzed CH Activation Cascade Sequence for Polyheterocycle Formation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501037] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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142
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Cooper SP, Booker-Milburn KI. A Palladium(II)-Catalyzed CH Activation Cascade Sequence for Polyheterocycle Formation. Angew Chem Int Ed Engl 2015; 54:6496-500. [DOI: 10.1002/anie.201501037] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Indexed: 11/11/2022]
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143
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Ma Z, Liu H, Zhang C, Zheng X, Yuan M, Fu H, Li R, Chen H. One-Pot Synthesis of Symmetrical 2,6-DiarylpyridinesviaPalladium/Copper-Catalyzed Sequential Decarboxylative and Direct CH Arylation. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400900] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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144
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Lei Y, Qiu R, Zhang L, Xu C, Pan Y, Qin X, Li H, Xu L, Deng Y. Palladium-Catalyzed Direct Arylation of Allylamines with Simple Arenes. ChemCatChem 2015. [DOI: 10.1002/cctc.201403019] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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145
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Kim CE, Son JY, Shin S, Seo B, Lee PH. Alkenylation of Phosphacoumarins via Aerobic Oxidative Heck Reactions and Their Synthetic Application to Fluorescent Benzophosphacoumarins. Org Lett 2015; 17:908-11. [DOI: 10.1021/acs.orglett.5b00020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cheol-Eui Kim
- National
Creative Research
Initiative Center for Catalytic Organic Reactions, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Jeong-Yu Son
- National
Creative Research
Initiative Center for Catalytic Organic Reactions, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Seohyun Shin
- National
Creative Research
Initiative Center for Catalytic Organic Reactions, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Boram Seo
- National
Creative Research
Initiative Center for Catalytic Organic Reactions, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea
| | - Phil Ho Lee
- National
Creative Research
Initiative Center for Catalytic Organic Reactions, Department of Chemistry, Kangwon National University, Chuncheon 200-701, Republic of Korea
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146
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Odani R, Hirano K, Satoh T, Miura M. Copper-mediated formally dehydrative biaryl coupling of azine N-oxides and oxazoles. J Org Chem 2015; 80:2384-91. [PMID: 25611158 DOI: 10.1021/acs.joc.5b00037] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A copper-mediated formally dehydrative biaryl coupling of azine N-oxides and oxazoles has been developed. The C-C bond-forming process proceeds, accompanied by the removal of the oxygen atom from the azine core, to directly afford the azine-oxazole biaryl linkage. Moreover, this system requires no noble transition metals such as palladium and rhodium, which are common promotors in the related dehydrogenative couplings with the azine N-oxide. Thus, the present protocol can provide a unique and less expensive approach to the azine-containing biheteroaryls of substantial interest in pharmaceutical and medicinal chemistry.
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Affiliation(s)
- Riko Odani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University , Suita, Osaka 565-0871, Japan
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147
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Lv J, Liang Y, He P, Cai Z, Liu J, Huang F. Palladium-catalyzed direct alkenylation of 2-methyl-4H-pyrido[1,2-a]pyrimidin-4-ones using oxygen as the oxidant. RSC Adv 2015. [DOI: 10.1039/c5ra02932e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A direct C-3 alkenylation of 2-methyl-4H-pyrido[1,2-a]pyrimidin-4-ones through palladium-catalyzed C–H activation using oxygen as the terminal oxidant has been developed.
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Affiliation(s)
- Junliang Lv
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Ying Liang
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Peiling He
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Zhihao Cai
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Jianwen Liu
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
| | - Fengxi Huang
- School of Chemistry and Chemical Engineering
- Guangdong Pharmaceutical University
- Guangzhou 510006
- P.R. of China
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148
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Liu P, Han J, Wang Q, Huang Z, Shi D, Zeng R, Zhao YS. Palladium(ii)-catalyzed Sequential ortho-olefination of β-arylethamines with assistance of oxalyl amide. RSC Adv 2015. [DOI: 10.1039/c5ra11677e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Pd-catalyzed highly selective ortho-alkenylation of β-arylethamines with the assistance of oxalyl amide is developed.
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Affiliation(s)
- Pei Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Jian Han
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Qian Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Zhibin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Daqing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Runsheng Zeng
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Ying Sheng Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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149
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Saunthwal RK, Patel M, Danodia AK, Verma AK. Pd-catalyzed Heck-conjoined amidation and concomitant chemoselective Michael-addition: an efficient tandem approach to highly functionalized tetrahydroquinazolines from o-haloanilines. Org Biomol Chem 2015; 13:1521-30. [DOI: 10.1039/c4ob02286f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient palladium-catalyzed tandem approach for the synthesis of highly functionalized tetrahydroquinazolines from o-haloanilines with acrylates and isothiocyanates/isocyanates via Heck-conjoined amidation/thioamidation and concomitant chemoselective Michael-addition is described.
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Affiliation(s)
- Rakesh K. Saunthwal
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Monika Patel
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Abhinandan K. Danodia
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
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150
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Lee WC, Chen CH, Liu CY, Yu MS, Lin YH, Ong TG. Nickel-catalysed para-CH activation of pyridine with switchable regioselective hydroheteroarylation of allylarenes. Chem Commun (Camb) 2015; 51:17104-7. [DOI: 10.1039/c5cc07455j] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
para-CH activation of pyridine with allylbenzene is described by Ni/Al cooperative catalysis to achieve branch and linear selectivity.
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Affiliation(s)
- Wei-Chih Lee
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
| | - Chien-Hung Chen
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
- National Chiao Tung University
| | - Cheng-Yuan Liu
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
| | - Ming-Shiuan Yu
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
| | - Yung-Huei Lin
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
| | - Tiow-Gan Ong
- Institute of Chemistry
- Academia Sinica
- Taipei
- Republic of China
- National Chiao Tung University
| |
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