1
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Lei X, Wang Y, Ma S, Jiao P. Purple Light-Promoted Coupling of Bromopyridines with Grignard Reagents via SET. J Org Chem 2024; 89:7148-7155. [PMID: 38718346 DOI: 10.1021/acs.joc.4c00525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Alkyl- and arylpyridines and 2,2'-bipyridines are conventionally prepared by Minisci reactions of pyridines and transition metal-catalyzed coupling reactions of halopyridines. Herein, purple light-promoted radical coupling reactions of 2- or 4-bromopyridines with Grignard reagents in Et2O or a mixture of Et2O and tetrahydrofuran in regular glassware without the need for a transition metal catalyst were disclosed for the first time. Methyl, primary and secondary alkyl, cycloalkyl, aryl, heteroaryl, pyridyl, and alkynyl Grignard reagents were compatible with the protocol. As a result, alkyl- and arylpyridines and 2,2'-bipyridines were easily prepared. Single electron transfer from the Grignard reagent to bromopyridine was stimulated by purple light. An electron extruded from the dimerization of the Grignard reagent worked as the catalyst. Light on/off experiments indicated that constant irradiation was required for product formation. Studies of radical clock substrates verified the involvement of a pyridyl radical from bromopyridine and the noninvolvement of an alkyl or aryl radical from the Grignard reagent. The available proof supports a photoinduced SRN mechanism for the new coupling reactions.
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Affiliation(s)
- Xingyu Lei
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Yihan Wang
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Shanshan Ma
- Institute of Rural Revitalization (Institute of Medicine and Health Care), Dezhou University, No. 566 West University Road, Dezhou 253023, China
| | - Peng Jiao
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
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2
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Cai Q, McWhinnie IM, Dow NW, Chan AY, MacMillan DWC. Engaging Alkenes in Metallaphotoredox: A Triple Catalytic, Radical Sorting Approach to Olefin-Alcohol Cross-Coupling. J Am Chem Soc 2024; 146:12300-12309. [PMID: 38657210 DOI: 10.1021/jacs.4c02316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Metallaphotoredox cross-coupling is a well-established strategy for generating clinically privileged aliphatic scaffolds via single-electron reactivity. Correspondingly, expanding metallaphotoredox to encompass new C(sp3)-coupling partners could provide entry to a novel, medicinally relevant chemical space. In particular, alkenes are abundant, bench-stable, and capable of versatile C(sp3)-radical reactivity via metal-hydride hydrogen atom transfer (MHAT), although metallaphotoredox methodologies invoking this strategy remain underdeveloped. Importantly, merging MHAT activation with metallaphotoredox could enable the cross-coupling of olefins with feedstock partners such as alcohols, which undergo facile open-shell activation via photocatalysis. Herein, we report the first C(sp3)-C(sp3) coupling of MHAT-activated alkenes with alcohols by performing deoxygenative hydroalkylation via triple cocatalysis. Through synergistic Ir photoredox, Mn MHAT, and Ni radical sorting pathways, this branch-selective protocol pairs diverse olefins and methanol or primary alcohols with remarkable functional group tolerance to enable the rapid construction of complex aliphatic frameworks.
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Affiliation(s)
- Qinyan Cai
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Iona M McWhinnie
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Nathan W Dow
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Amy Y Chan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - David W C MacMillan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
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3
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Scalable Synthesis of TRPV1 Antagonist Bipyridinyl Benzimidazole Derivative via the Suzuki-Miyaura Reaction and Selective SeO 2 Oxidation. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020836. [PMID: 36677895 PMCID: PMC9860766 DOI: 10.3390/molecules28020836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 12/29/2022] [Accepted: 01/10/2023] [Indexed: 01/18/2023]
Abstract
In this study, a kilogram-scale synthesis of a potent TRPV1 antagonist, 1, is described. To synthesize bipyridinyl benzimidazole derivative 1, we have developed a scalable Suzuki-Miyaura reaction capable of providing a key intermediate, 6'-methyl-3-(trifluoromethyl)-2,3'-bipyridine 4, on a kilogram scale. Then, unlike the existing oxidation reaction pathway, two synthetic routes that can be applied to mass production of bipyridinyl carboxylic acid intermediate 5 or aldehyde intermediate 6 were developed by appropriately controlling the oxidation reaction using a selenium dioxide oxidizing agent. Using our developed synthetic procedure, which includes Suzuki-Miyaura coupling, selective selenium dioxide oxidation, and benzimidazole formation, multi-kilogram-scale bi-pyridinyl benzimidazole derivative 1 can be synthesized.
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4
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Zhang D, Wu F, Wan Z, Wang Y, He X, Guo B, You H, Chen FE. A palladium polyaniline complex: a simple and efficient catalyst for batch and flow Suzuki-Miyaura cross-couplings. Chem Commun (Camb) 2022; 58:10845-10848. [PMID: 36073300 DOI: 10.1039/d2cc04051d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel palladium polyaniline complex (Pd@PANI) was synthesized via a one-pot method using a low concentration of hydrogen peroxide (3 wt%) as a mild oxidant. Pd@PANI was employed to catalyze Suzuki-Miyaura cross-couplings with 0.11 ppm levels of palladium and high turnover numbers (up to 6.1 × 104). Various aromatic halides and aromatic boric acids were used as reaction partners to prepare the biaryl compounds in high yields. Application of the method in the synthesis of D-fructose derivatives was also performed. Furthermore, the catalyst was evaluated under a flow process to provide the corresponding products in good yields with shorter residence times and lower temperatures in more convenient operations compared with the batch conditions.
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Affiliation(s)
- Dongliang Zhang
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Fusong Wu
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Zhijian Wan
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Yichun Wang
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Xuan He
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Bing Guo
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.
| | - Hengzhi You
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China
| | - Fen-Er Chen
- School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China. .,Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, China.,Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai, 200433, China
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5
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Shalini C, Dharmaraj N, Bhuvanesh NS, Kaveri M. Suzuki Miyaura cross-coupling of 2-chloropyrazine with arylboronic acids catalyzed by novel palladium(II) ONO pincer complexes. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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6
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Yang H, Zhou Y, Zhang Z, Wen J, Zhang X. Iridium-Catalyzed Hydroiodination and Formal Hydroamination of Olefins with N-Iodo Reagents and Molecular Hydrogen: An Umpolung Strategy. Org Lett 2022; 24:1842-1847. [PMID: 35209714 DOI: 10.1021/acs.orglett.2c00392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We herein report a convenient method to convert olefins to organic iodides and amines using an Ir/ZhaoPhos catalyst, molecular hydrogen, and an electrophilic iodine(I) reagent. High yields and regioselectivities were obtained under mild conditions. In addition, basic workup with potassium carbonate leads to C-N products. Control experiments and DFT calculations tentatively excluded the pathway involving the in situ formation of HI. Instead, a catalytic cycle involving the hydrogenation of the haliranium ion intermediate was proposed.
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Affiliation(s)
- Huaxin Yang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518005, China
| | - Yang Zhou
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518005, China
| | - Zhihan Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518005, China
| | - Jialin Wen
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518005, China.,Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518005, China
| | - Xumu Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518005, China
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7
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Ai HJ, Yuan Y, Wu XF. Ruthenium pincer complex-catalyzed heterocycle compatible alkoxycarbonylation of alkyl iodides: substrate keeps the catalyst active. Chem Sci 2022; 13:2481-2486. [PMID: 35310509 PMCID: PMC8864804 DOI: 10.1039/d1sc06581e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 02/05/2022] [Indexed: 11/28/2022] Open
Abstract
The electron pair of the heteroatom in heterocycles will coordinate with metal catalysts and decrease or even inhibit their catalytic activity consequently. In this work, a pincer ruthenium-catalyzed heterocycle compatible alkoxycarbonylation of alkyl iodides has been developed. Benefitting from the pincer ligand, a variety of heterocycles, such as thiophenes, morpholine, unprotected indoles, pyrrole, pyridine, pyrimidine, furan, thiazole, pyrazole, benzothiadiazole, and triazole, are compatible here.
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Affiliation(s)
- Han-Jun Ai
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Yang Yuan
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Xiao-Feng Wu
- Leibniz-Institut für Katalyse e.V. Albert-Einstein-Straße 29a 18059 Rostock Germany
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Science 116023 Dalian Liaoning China
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8
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Przydacz A, Topolska A, Skrzyńska A, Albrecht Ł. NHC‐catalyzed 1,4‐elimination in the dearomative activation of 3‐furaldehydes towards (4+2)‐cycloadditions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Singh P, Singh AK. Palladium( ii) complexes of 2,2′-tellurobis( N, N-diphenyl acetamide): efficient catalysts for Suzuki–Miyaura coupling at room temperature under air. NEW J CHEM 2022. [DOI: 10.1039/d1nj03162g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three complexes, [Pd(L2)2Br2](C1), [(L2)PdCl(μ-Cl)2PdCl(L2)](C2), and [Pd(L2)PPh3Cl2](C3), where L2 = 2,2′-tellurobis(N,N-diphenylacetamide), catalyze Suzuki–Miyaura coupling (loading: 0.001 mol % of Pd) of eleven ArX at room temperature under air.
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Affiliation(s)
- Poornima Singh
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
| | - Ajai K. Singh
- Department of Chemistry, Indian Institute of Technology Delhi, New Delhi-110016, India
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10
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Kang K, Loud NL, DiBenedetto TA, Weix DJ. A General, Multimetallic Cross-Ullmann Biheteroaryl Synthesis from Heteroaryl Halides and Heteroaryl Triflates. J Am Chem Soc 2021; 143:21484-21491. [PMID: 34918908 PMCID: PMC9007723 DOI: 10.1021/jacs.1c10907] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite their importance to medicine and materials science, the synthesis of biheteroaryls by cross-coupling remains challenging. We describe here a new, general approach to biheteroaryls: the Ni- and Pd-catalyzed multimetallic cross-Ullmann coupling of heteroaryl halides with triflates. An array of 5-membered, 6-membered, and fused heteroaryl bromides and chlorides, as well as aryl triflates derived from heterocyclic phenols, proved to be viable substrates in this reaction (62 examples, 63 ± 17% average yield). The generality of this approach to biheteroaryls was further demonstrated in 96-well plate format at 10 μmol scale. An array of 96 possible products provided >90% hit rate under a single set of conditions. Further, low-yielding combinations could be rapidly optimized with a single "Toolbox Plate" of ligands, additives, and reductants.
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Affiliation(s)
- Kai Kang
- University of Wisconsin-Madison, Madison, WI 53706, USA
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11
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Du L, Gong Y, Han J, Xin X, Luo H, Tian Y, Li Y, Li B. Cascade 8π Electrocyclization/Benzannulation to Access Highly Substituted Phenylpyridines. Org Lett 2021; 23:7966-7971. [PMID: 34617768 DOI: 10.1021/acs.orglett.1c02968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A cascade 8π electrocyclization/benzannulation reaction was developed to obtain the synthetically important highly substituted phenyl-pyridines. This method shows great potential in the rapid and inexpensive application of the scalable and operationally simple production of accessible substrates. On the basis of the resulting phenyl-pyridine products, a new Ru catalyst and bidentate ligand were designed and prepared, further demonstrating its high practicability.
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Affiliation(s)
- Luan Du
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Yiliang Gong
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Jingpeng Han
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Xiaolan Xin
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Han Luo
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - You Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
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12
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Humke JN, Daley RA, Morrenzin AS, Neufeldt SR, Topczewski JJ. Combined Experimental and Computational Mechanistic Investigation of the Palladium-Catalyzed Decarboxylative Cross-Coupling of Sodium Benzoates with Chloroarenes. J Org Chem 2021; 86:11419-11433. [PMID: 34339213 DOI: 10.1021/acs.joc.1c00910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reported herein is a mechanistic investigation into the palladium-catalyzed decarboxylative cross-coupling of sodium benzoates and chloroarenes. The reaction was found to be first-order in Pd. A minimal substituent effect was observed with respect to chloroarene, and the reaction was zero-order with respect to chloroarene. Palladium-mediated decarboxylation was assigned as the turnover-limiting step based on an Eyring plot and density functional theory computations. Catalyst performance was found to vary based on the electrophile, which is best explained by catalyst decomposition at Pd(0). The 1,5-cyclooctadiene (COD) ligand contained in the precatalyst CODPd(CH2TMS)2 (Pd1) was shown to be a beneficial additive. The bench-stable Buchwald complex XPhosPdG2 could be used with exogenous COD and 2-dicyclohexylphosphino-2',4',6'-triisopropylbiphenyl (XPhos) instead of complex Pd1. Adding exogenous XPhos significantly increased the catalyst turnover number and enhanced reproducibility.
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Affiliation(s)
- Jenna N Humke
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Ryan A Daley
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Aaron S Morrenzin
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Sharon R Neufeldt
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Joseph J Topczewski
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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13
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Kassel VM, Hanneman CM, Delaney CP, Denmark SE. Heteroaryl-Heteroaryl, Suzuki-Miyaura, Anhydrous Cross-Coupling Reactions Enabled by Trimethyl Borate. J Am Chem Soc 2021; 143:13845-13853. [PMID: 34415757 DOI: 10.1021/jacs.1c06419] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Reaction conditions have been developed for refractory heteroaryl-heteroaryl Suzuki-Miyaura cross-couplings. The reported method employs neopentyl heteroarylboronic esters as nucleophiles, heteroaryl bromides and chlorides as the electrophiles, and the soluble base potassium trimethylsilanolate (TMSOK) under anhydrous conditions. The addition of trimethyl borate enhances reaction rates by several mechanisms, including (1) solubilization of in situ-generated boronate complexes, (2) preventing catalyst poisoning by the heteroatomic units, and (3) buffering the inhibitory effect of excess TMSOK. The use of this method enables cross-coupling of diverse reaction partners including a broad range of π-rich and π-deficient heteroaryl boronic esters and heteroaryl bromides. Reactions proceed in good yields and short reaction times (3 h or less).
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Affiliation(s)
- Vincent M Kassel
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Christopher M Hanneman
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Connor P Delaney
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
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14
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Li X, Li J, Wang X, Wu L, Wang Y, Maestri G, Malacria M, Liu X. Photoelectric properties of aromatic triangular tri-palladium complexes and their catalytic applications in the Suzuki-Miyaura coupling reaction. Dalton Trans 2021; 50:11834-11842. [PMID: 34369501 DOI: 10.1039/d1dt01597d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The photoelectric properties and catalytic activities of substituted triphenylphosphine and sulfur/selenium ligand supported aromatic triangular tri-palladium complexes 1-4, abbreviated as [Pd3]+, were investigated. The cyclic voltammogram of [Pd3]+ in CH3CN-nBu4NPF6 showed a single quasi-reversible wave which was consistent with their robust property and provided preliminary proof for their electron transfer processes in catalysis. With excitation at 267 nm, [Pd3]+ exhibited strong ratiometric fluorescence at 550 and 780 nm at a temperature gradient from 77 K to 287 K. These peculiar triangular tri-palladium complexes showed excellent catalytic activities and exclusive reactivity with aryl iodides over the other halogenated aromatics in the Suzuki-Miyaura coupling reaction. The electronic and steric hindrance effects of substituents on the aryl iodides and aryl boronic acids including heteroaromatics like pyridine, pyrazine and thiophenes were explored and most substrates achieved up to 99% of yields. (2-[1,1'-Biphenyl]-2-ylbenzothiazole) which was analogous to the selective cyclooxygenase-2 (COX-2) inhibitors was also synthesized with our tri-palladium catalyst and gave good isolated yield (94%). The study of the catalytic process revealed that the mechanism of the reaction may involve the replacement of the sulphur ligand on [Pd3]+ by iodine from aryl iodides, which was beneficial for the matching of C-I bond energy.
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Affiliation(s)
- Xujun Li
- Department of chemistry and chemical engineering, Liaocheng University, 252059, Liaocheng, China.
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15
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Karbakhshzadeh A, Heravi MRP, Rahmani Z, Ebadi AG, Vessally E. Aroyl fluorides: Novel and promising arylating agents. J Fluor Chem 2021. [DOI: 10.1016/j.jfluchem.2021.109806] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Lambert de Boisjan A, Allemann C, Fadini L. Impact of Solvent and Their Contaminants on Pd/C Catalyzed
Suzuki‐Miyaura
Cross‐Coupling Reactions. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | - Christophe Allemann
- HES SO University of Applied Sciences Western Switzerland Bd de Péroles 80 1700 Fribourg Switzerland
| | - Luca Fadini
- Helsinn Advanced Synthesis via industria 24 6710 Biasca Switzerland
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17
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Tabassum S, Zahoor AF, Ahmad S, Noreen R, Khan SG, Ahmad H. Cross-coupling reactions towards the synthesis of natural products. Mol Divers 2021; 26:647-689. [PMID: 33609222 DOI: 10.1007/s11030-021-10195-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 01/30/2021] [Indexed: 01/12/2023]
Abstract
Cross-coupling reactions are powerful synthetic tools for the formation of remarkable building blocks of many naturally occurring molecules, polymers and biologically active compounds. These reactions have brought potent transformations in chemical and pharmaceutical disciplines. In this review, we have focused on the use of cross-coupling reactions such as Suzuki, Negishi, Heck, Sonogashira and Stille in the total synthesis of some natural products of recent years (2016-2020). A short introduction of mentioned cross-coupling reactions along with highlighted aspects of natural products has been stated in separate sections. Additionally, few examples of natural products via incorporation of more than one type of cross-coupling reaction have also been added to demonstrate the importance of these reactions in organic synthesis.
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Affiliation(s)
- Shaheera Tabassum
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology, Lahore, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Razia Noreen
- Department of Biochemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Samreen Gul Khan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Hamad Ahmad
- Department of Chemistry, University of Management and Technology, Lahore, Pakistan
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18
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Kumar A, Kumar M, Verma AK. Well-Defined Palladium N-Heterocyclic Carbene Complexes: Direct C-H Bond Arylation of Heteroarenes. J Org Chem 2020; 85:13983-13996. [PMID: 33064481 DOI: 10.1021/acs.joc.0c02024] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A series of palladium N-heterocyclic carbene (NHC) complexes of type trans-{(NHC)PdCl2L} (L = C5H5N, 3-ClC5H4N, and PPh3) (3-5) have been developed as efficient precatalysts for direct C-H bond arylation of various heteroarenes. In particular, an in situ generated new NHC ligand derived from {1,3-di-(2,6-diethylphenyl)acenaphtho[1,2-d] imidazolium} chloride (2) is used for the stabilization of the palladium metal center. Among the screened palladium precatalysts (3-5), the most active PEPPSI themed complex (3) was successfully employed toward direct C-H bond arylation of various heteroarenes and aryl bromides. A range of functional groups on aryl bromides as well as on heteroarenes sustained throughout the standard reaction conditions for easy access of various arylated heterocyclic compounds. Significantly, the utility of the protocol was demonstrated by the effective synthesis of a precursor of raloxifene, a selective estrogen receptor modulator.
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Affiliation(s)
- Anuj Kumar
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Manoj Kumar
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Akhilesh K Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
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19
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Amirsardari Z, Dourani A, Amirifar MA, Ghadiri Massoom N, Javadi A, Ehsani R, Ghanbarnejad R. Dentate number and functionality of O, N-donor ligands for the growth and catalytic reaction of iridium nanoparticles. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01148-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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20
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Sharma S, Das J, Braje WM, Dash AK, Handa S. A Glimpse into Green Chemistry Practices in the Pharmaceutical Industry. CHEMSUSCHEM 2020; 13:2859-2875. [PMID: 32212245 DOI: 10.1002/cssc.202000317] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 03/23/2020] [Indexed: 06/10/2023]
Abstract
In this Minireview, the importance and implementation of green chemistry practices in the pharmaceutical industry are illustrated. With notable examples, some of the most important industrial organic transformations are discussed along with their applications in the synthesis of drug molecules. A brief comparison between traditional unsustainable methods and modern green methods is made to shed light on the economic and environmental benefits of greener methods. Finally, green chemistry practices in the pharmaceutical industries of India and China are also discussed.
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Affiliation(s)
- Sudripet Sharma
- Department of Chemistry, University of Louisville, 2320 S. Brook St., Louisville, KY, 40292, USA
| | - Jagattaran Das
- School of Pharmaceutical Sciences, Shoolini University, Solan, HP, India
- School of Pharmacy & Emerging Sciences, Baddi University of Emerging Sciences and Technologies, Baddi, HP, India
| | - Wilfried M Braje
- AbbVie (Deutschland) GmbH & Co. KG, Medicinal Chemistry, Neuroscience Discovery Research, Knollstrass, 67061, Ludwigshafen, Germany
| | - Ashutosh K Dash
- School of Pharmaceutical Sciences, Shoolini University, Solan, HP, India
| | - Sachin Handa
- Department of Chemistry, University of Louisville, 2320 S. Brook St., Louisville, KY, 40292, USA
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21
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Barazandehdoust M, Mamaghani M, Kefayati H. A novel phosphine-free and recyclable palladium organic–inorganic hybrid magnetic nanocatalyst for Heck cross-coupling reactions. REACTION KINETICS MECHANISMS AND CATALYSIS 2020. [DOI: 10.1007/s11144-020-01744-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Gong X, Sun C, Abame MA, Shi W, Xie Y, Xu W, Zhu F, Zhang Y, Shen J, Aisa HA. Synthesis of CBD and Its Derivatives Bearing Various C4′-Side Chains with a Late-Stage Diversification Method. J Org Chem 2019; 85:2704-2715. [DOI: 10.1021/acs.joc.9b02880] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xudong Gong
- The Key Laboratory of Plant Resources and Chemistry in Arid Regions and Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, South Beijing Road 40-1, Urumqi, Xinjiang 830011, People’s Republic of China
- University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People’s Republic of China
| | - Changliang Sun
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, People’s Republic of China
| | - Melkamu Alemu Abame
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Wenqiang Shi
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Yuanchao Xie
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Wanbin Xu
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Fuqiang Zhu
- Topharman Shanghai Co., Ltd., Building 1, No. 388 Jialilue Road, Zhangjiang Hitech Park, Shanghai 201209, People’s Republic of China
| | - Yan Zhang
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Jingshan Shen
- CAS Key Laboratory for Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, People’s Republic of China
| | - Haji A. Aisa
- The Key Laboratory of Plant Resources and Chemistry in Arid Regions and Key Laboratory of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, South Beijing Road 40-1, Urumqi, Xinjiang 830011, People’s Republic of China
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23
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Lingkon K, Bellizzi JJ. Structure and Activity of the Thermophilic Tryptophan-6 Halogenase BorH. Chembiochem 2019; 21:1121-1128. [PMID: 31692209 DOI: 10.1002/cbic.201900667] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Indexed: 12/19/2022]
Abstract
Flavin-dependent halogenases carry out regioselective aryl halide synthesis in aqueous solution at ambient temperature and neutral pH using benign halide salts, making them attractive catalysts for green chemistry. BorH and BorF, two proteins encoded by the biosynthetic gene cluster for the chlorinated bisindole alkaloid borregomycin A, are the halogenase and flavin reductase subunits of a tryptophan-6-halogenase. Quantitative conversion of l-tryptophan (Trp) to 6-chlorotryptophan could be achieved using 1.2 mol % BorH and 2 mol % BorF. The optimal reaction temperature for Trp chlorination is 45 °C, and the melting temperatures of BorH and BorF are 48 and 50 °C respectively, which are higher than the thermal parameters for most other halogenases previously studied. Steady-state kinetic analysis of Trp chlorination by BorH determined parameters of kcat =4.42 min-1 , and KM of 9.78 μm at 45 °C. BorH exhibits a broad substrate scope, chlorinating and brominating a variety of aromatic substrates with and without indole groups. Chlorination of Trp at a 100 mg scale with 52 % crude yield, using 0.2 mol % BorH indicates that industrial scale biotransformations using BorH/BorF are feasible. The X-ray crystal structure of BorH with bound Trp provides additional evidence for the model that regioselectivity is determined by substrate positioning in the active site, showing C6 of Trp juxtaposed with the catalytic Lys79 in the same binding pose previously observed in the structure of Thal.
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Affiliation(s)
- Kazi Lingkon
- Department of Chemistry and Biochemistry, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, OH, 43606, USA
| | - John J Bellizzi
- Department of Chemistry and Biochemistry, The University of Toledo, 2801 W. Bancroft St. MS 602, Toledo, OH, 43606, USA
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Takale BS, Thakore RR, Mallarapu R, Gallou F, Lipshutz BH. A Sustainable 1-Pot, 3-Step Synthesis of Boscalid Using Part per Million Level Pd Catalysis in Water. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00455] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Balaram S. Takale
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Ruchita R. Thakore
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Rushil Mallarapu
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
- Fairfield Ludlowe High School, 785 Unquowa Ave., Fairfield, Connecticut 06890, United States
| | | | - Bruce H. Lipshutz
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
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25
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Mannava V, Jesse KA, Anderson JS. Nickel-Mediated Dehydrogenative Aryl–Aryl Homocoupling of a Bulky Phosphino-Pyridine. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00668] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vennela Mannava
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - Kate A. Jesse
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
| | - John S. Anderson
- Department of Chemistry, The University of Chicago, Chicago, Illinois 60637, United States
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26
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Xu L, Liu K, Duan X. Iron‐Catalyzed Room Temperature Cross‐Couplings of Bromophenols with Aryl Grignard Reagents. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Li‐Chen Xu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Kun‐Ming Liu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Xin‐Fang Duan
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
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27
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Huang D, Olivieri D, Sun Y, Zhang P, Newhouse TR. Nickel-Catalyzed Difunctionalization of Unactivated Alkenes Initiated by Unstabilized Enolates. J Am Chem Soc 2019; 141:16249-16254. [DOI: 10.1021/jacs.9b09245] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- David Huang
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Diego Olivieri
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Yang Sun
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Pengpeng Zhang
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Timothy R. Newhouse
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
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28
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Abstract
A modular continuous flow synthesis of imatinib and analogues is reported. Structurally diverse imatinib analogues are rapidly generated using three readily available building blocks via a flow hydration/chemoselective C-N coupling sequence. The newly developed continuous flow hydration and amidation modules each exhibit a broad scope with good to excellent yields. Overall, the method described does not require solvent switches, in-line purifications, or packed-bed apparatuses due to the judicious manipulation of flow setups and solvent mixtures.
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Affiliation(s)
- Wai Chung Fu
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
| | - Timothy F Jamison
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , Massachusetts 02139 , United States
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29
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Zhang T, Shen HC, Xu JC, Fan T, Han ZY, Gong LZ. Pd(II)-Catalyzed Asymmetric Oxidative Annulation of N-Alkoxyheteroaryl Amides and 1,3-Dienes. Org Lett 2019; 21:2048-2051. [DOI: 10.1021/acs.orglett.9b00216] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hong-Cheng Shen
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jia-Cheng Xu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Tao Fan
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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30
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Przydacz A, Skrzyńska A, Albrecht Ł. Unterbrechung der Aromatizität mittels Aminokatalyse: Eine einfache Strategie für die asymmetrische Synthese. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808197] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Artur Przydacz
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Polen
| | - Anna Skrzyńska
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Polen
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Polen
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31
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Przydacz A, Skrzyńska A, Albrecht Ł. Breaking Aromaticity with Aminocatalysis: A Convenient Strategy for Asymmetric Synthesis. Angew Chem Int Ed Engl 2018; 58:63-73. [DOI: 10.1002/anie.201808197] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/12/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Artur Przydacz
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Anna Skrzyńska
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
| | - Łukasz Albrecht
- Institute of Organic Chemistry; Faculty of Chemistry; Lodz University of Technology; Żeromskiego 116 90-924 Łódź Poland
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32
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Cherney AH, Hedley SJ, Mennen SM, Tedrow JS. Xantphos as a Branch-Selective Ligand for the Acyclic sec-Alkyl Negishi Cross-Coupling of Heteroaryl Halides. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00590] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Alan H. Cherney
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Simon J. Hedley
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Steven M. Mennen
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
| | - Jason S. Tedrow
- Drug Substance Technologies, Amgen, Inc., 360 Binney Street, Cambridge, Massachusetts 02142, United States
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33
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Macaulay CM, Gustafson SJ, Fuller JT, Kwon DH, Ogawa T, Ferguson MJ, McDonald R, Lumsden MD, Bischof SM, Sydora OL, Ess DH, Stradiotto M, Turculet L. Alkene Isomerization–Hydroboration Catalyzed by First-Row Transition-Metal (Mn, Fe, Co, and Ni) N-Phosphinoamidinate Complexes: Origin of Reactivity and Selectivity. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01972] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Casper M. Macaulay
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Samantha J. Gustafson
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Jack T. Fuller
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Doo-Hyun Kwon
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Takahiko Ogawa
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Michael J. Ferguson
- X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Robert McDonald
- X-Ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - Michael D. Lumsden
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Steven M. Bischof
- Research and Technology, Chevron Phillips Chemical Company LP, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Orson L. Sydora
- Research and Technology, Chevron Phillips Chemical Company LP, 1862 Kingwood Drive, Kingwood, Texas 77339, United States
| | - Daniel H. Ess
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah 84602, United States
| | - Mark Stradiotto
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. 15000, Halifax, Nova Scotia B3H 4R2, Canada
| | - Laura Turculet
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, P.O. 15000, Halifax, Nova Scotia B3H 4R2, Canada
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34
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Komiyama M, Tsuchiya H, Teramoto M, Yajima N, Kurokawa M, Minamizono K, Tsuchiya N, Kato Y, Sato Y, Dohi M. Process Development of Febuxostat Using Palladium- and Copper-Catalyzed C–H Arylation. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masato Komiyama
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Hideyoshi Tsuchiya
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Mitsuru Teramoto
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Naoki Yajima
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Masayuki Kurokawa
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Kunio Minamizono
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Naoki Tsuchiya
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Yoshiaki Kato
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Yoshinori Sato
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
| | - Masahiko Dohi
- Active Pharmaceutical Ingredient Technology Section, Pharmaceutical Preparation Department, Teijin Pharma Limited, 2-1 Hinode-cho, Iwakuni-shi, Yamaguchi 740-8511, Japan
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35
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Dong Z, Lu G, Wang J, Liu P, Dong G. Modular ipso/ ortho Difunctionalization of Aryl Bromides via Palladium/Norbornene Cooperative Catalysis. J Am Chem Soc 2018; 140:8551-8562. [PMID: 29906109 PMCID: PMC6430613 DOI: 10.1021/jacs.8b04153] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Palladium/norbornene (Pd/NBE) cooperative catalysis has emerged as a useful tool for preparing poly substituted arenes; however, its substrate scope has been largely restricted to aryl iodides. While aryl bromides are considered as standard substrates for Pd-catalyzed cross coupling reactions, their use in Pd/NBE catalysis remains elusive. Here we describe the development of general approaches for aryl bromide-mediated Pd/NBE cooperative catalysis. Through careful tuning the phosphine ligands and quenching nucleophiles, ortho amination, acylation and alkylation of aryl bromides have been realized in good efficiency. Importantly, various heteroarene substrates also work well and a wide range of functional groups are tolerated. In addition, the utility of these methods has been demonstrated in sequential cross coupling/ ortho functionalization reactions, consecutive Pd/NBE-catalyzed difunctionalization to construct penta-substituted aromatics and two-step meta functionalization reactions. Moreover, the origin of the ligand effect in ortho amination reactions has been explored through DFT studies. It is expected that this effort would significantly expand the reaction scope and enhance the synthetic potential for Pd/NBE catalysis in preparing complex aromatic compounds.
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Affiliation(s)
- Zhe Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Gang Lu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Jianchun Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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36
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Polydopamine supported palladium nanoparticles: Highly efficient catalysts in Suzuki cross-coupling and tandem Suzuki cross-coupling/nitroarene reductions under green reaction conditions. J Catal 2018. [DOI: 10.1016/j.jcat.2018.02.031] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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37
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Perdomo Rivera R, Ehlers P, Ohlendorf L, Torres Rodríguez E, Villinger A, Langer P. Chemoselective Synthesis of Arylpyridines through Suzuki-Miyaura Cross-Coupling Reactions. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701718] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rodisnel Perdomo Rivera
- Universität Rostock; Institut für Chemie; A.-Einstein-Str. 3a 18059 Rostock Germany
- University of Granma; Study Center of Applied Chemistry; Carretera de Manzanillo Km 17½ 85100 Bayamo, Granma Cuba
| | - Peter Ehlers
- Universität Rostock; Institut für Chemie; A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; A.-Einstein-Str. 29a 18059 Rostock Germany
| | - Lars Ohlendorf
- Universität Rostock; Institut für Chemie; A.-Einstein-Str. 3a 18059 Rostock Germany
| | - Eugenio Torres Rodríguez
- University of Granma; Study Center of Applied Chemistry; Carretera de Manzanillo Km 17½ 85100 Bayamo, Granma Cuba
| | - Alexander Villinger
- Universität Rostock; Institut für Chemie; A.-Einstein-Str. 3a 18059 Rostock Germany
| | - Peter Langer
- Universität Rostock; Institut für Chemie; A.-Einstein-Str. 3a 18059 Rostock Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; A.-Einstein-Str. 29a 18059 Rostock Germany
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38
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Urvashi U, Tandon V, Das P, Kukreti S. Synthesis of 3,6-diaryl-1H-pyrazolo[3,4-b]pyridines via one-pot sequential Suzuki–Miyaura coupling. RSC Adv 2018; 8:34883-34894. [PMID: 35547054 PMCID: PMC9087644 DOI: 10.1039/c8ra07104g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 09/13/2018] [Indexed: 01/15/2023] Open
Abstract
A practical synthesis of diarylpyrazolo[3,4-b]pyridine derivatives by a combination of chemoselective Suzuki–Miyaura cross-coupling reactions was developed. The sequential arylation strategy can be performed in a one-pot manner without much loss of efficiency when compared to the corresponding stepwise synthesis. These conditions are applicable to the coupling of a wide variety of aryl and heteroaryl-boronic acids with pyrazolo[3,4-b]pyridines with high selectivity of the C3 over the C6 position, thus enabling the rapid construction of a diverse array of medicinally important diarylpyrazolo[3,4-b]pyridines. An efficient method to produce diarylpyrazolo[3,4-b]pyridines derivatives via combination of chemoselective Suzuki–Miyaura cross-coupling reactions has been developed.![]()
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Affiliation(s)
| | - Vibha Tandon
- Special Centre for Molecular Medicine
- Jawaharlal Nehru University
- New Delhi-110067
- India
| | - Parthasarathi Das
- Department of Applied Chemistry
- Indian Institute of Technology (Indian School of Mines)
- Dhanbad-826004
- India
| | - S. Kukreti
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
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39
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Knauber T, Chandrasekaran R, Tucker JW, Chen JM, Reese M, Rankic DA, Sach N, Helal C. Ru/Ni Dual Catalytic Desulfinative Photoredox Csp2–Csp3 Cross-Coupling of Alkyl Sulfinate Salts and Aryl Halides. Org Lett 2017; 19:6566-6569. [DOI: 10.1021/acs.orglett.7b03280] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas Knauber
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | | | - Joseph W. Tucker
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Jinshan Michael Chen
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Matthew Reese
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Danica A. Rankic
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
| | - Neal Sach
- Pfizer Worldwide Research and Development, La Jolla, California 92037, United States
| | - Christopher Helal
- Pfizer Worldwide Research and Development, Groton, Connecticut 06340, United States
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40
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Liu W, Xiong D, Huo P, Mei G. Highly Active Palladium Catalysts with Bisacetylacetonate Ligands for Suzuki–Miyaura Cross-coupling Reactions in Mild Conditions. CHEM LETT 2017. [DOI: 10.1246/cl.170705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Wanyun Liu
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun 336000, P. R. China
| | - Dayan Xiong
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun 336000, P. R. China
| | - Ping Huo
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun 336000, P. R. China
| | - Guangquan Mei
- Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, Yichun University, Yichun 336000, P. R. China
- State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, P. R. China
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41
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Lee JH, Raja GC, Yu S, Lee J, Song KH, Lee S. Palladium-Catalyzed Decarboxylative Coupling of Alkynyl Carboxylic Acids with Aryl Tosylates. ACS OMEGA 2017; 2:6259-6269. [PMID: 31457871 PMCID: PMC6644868 DOI: 10.1021/acsomega.7b01165] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 09/18/2017] [Indexed: 06/10/2023]
Abstract
Decarboxylative coupling reactions of alkynyl carboxylic acids with aryl tosylates were developed in the presence of a palladium catalyst. Among the commercially available phosphine ligands, only 1-dicyclohexylphosphino-2-(di-tert-butylphosphino-ethyl)ferrocene (CyPF-tBu) showed good reactivity. The reaction took place smoothly and gave the decarboxylative coupled products in moderate to good yields. This demonstrates the excellent functional group tolerance toward alkyl, alkoxy, fluoro, thiophenyl, ester, and ketone groups. In addition, alkyl-substituted propiolic acids, such as octynoic and hexynoic acids, were coupled with phenyl tosylate to provide the desired products. We found that the electronic properties of the substituents on the phenyl ring in arylpropiolic acids are an important factor. The order of reactivity was found to be aryl iodide > aryl bromide > aryl tosylate > aryl chloride. However, aryl chloride-bearing electron-withdrawing groups showed higher reactivity than those bearing aryl tosylates.
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Affiliation(s)
- Ju-Hyeon Lee
- Department
of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | | | - Subeen Yu
- Department
of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Junseong Lee
- Department
of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Kwang Ho Song
- Department
of Chemical & Biological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Sunwoo Lee
- Department
of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea
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42
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Ullmann coupling of aryl chlorides in water catalyzed by palladium nanoparticles supported on amine-grafted porous aromatic polymer. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.05.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Hansen EC, Li C, Yang S, Pedro D, Weix DJ. Coupling of Challenging Heteroaryl Halides with Alkyl Halides via Nickel-Catalyzed Cross-Electrophile Coupling. J Org Chem 2017; 82:7085-7092. [PMID: 28682073 PMCID: PMC5539790 DOI: 10.1021/acs.joc.7b01334] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
![]()
Despite
their importance, the synthesis of alkylated heterocycles
from the cross-coupling of Lewis basic nitrogen heteroaryl halides
with alkyl halides remains a challenge. We report here a general solution
to this challenge enabled by a new collection of ligands based around
2-pyridyl-N-cyanocarboxamidine and 2-pyridylcarboxamidine
cores. Both primary and secondary alkyl halides can be coupled with
2-, 3-, and 4-pyridyl halides as well as other more complex heterocycles
in generally good yields (41 examples, 69% ave yield).
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Affiliation(s)
- Eric C Hansen
- Chemical Research and Development Pfizer Worldwide Research and Development , Eastern Point Road, Groton, Connecticut 06340, United States
| | - Changfeng Li
- Asymchem Life Science (Tianjin) Co., Ltd., 71 Seventh Avenue, TEDA, Tianjin 300457, China
| | - Sihang Yang
- Asymchem Life Science (Tianjin) Co., Ltd., 71 Seventh Avenue, TEDA, Tianjin 300457, China
| | - Dylan Pedro
- Chemical Research and Development Pfizer Worldwide Research and Development , Eastern Point Road, Groton, Connecticut 06340, United States
| | - Daniel J Weix
- Department of Chemistry, University of Rochester , Rochester, New York 14627-0216, United States
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44
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Laulhé S, Blackburn JM, Roizen JL. Exhaustive Suzuki-Miyaura reactions of polyhalogenated heteroarenes with alkyl boronic pinacol esters. Chem Commun (Camb) 2017; 53:7270-7273. [PMID: 28345090 DOI: 10.1039/c7cc00997f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel Suzuki-Miyaura protocol is described that enables the exhaustive alkylation of polychlorinated pyridines. This method facilitates a formal synthesis of normuscopyridine and the rapid assembly of a dumbbell shaped portion of a [2]rotaxane.
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Affiliation(s)
- Sébastien Laulhé
- Department of Chemistry and Chemical Biology, IUPUI, Indianapolis, IN 46202, USA
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45
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Yan MQ, Yuan J, Lan F, Zeng SH, Gao MY, Liu SH, Chen J, Yu GA. An active catalytic system for Suzuki-Miyaura cross-coupling reactions using low levels of palladium loading. Org Biomol Chem 2017; 15:3924-3929. [PMID: 28430269 DOI: 10.1039/c7ob00178a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An easily available Pd(OAc)2/(2-(anthracen-9-yl)-1H-inden-3-yl) dicyclohexylphosphine/toluene/iPrOH/water catalytic system was developed, which shows high catalytic activity in the Suzuki-Miyaura cross-coupling reactions of a diverse array of aryl and heteroaryl chlorides with Pd loadings down to 0.01 mol%.
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Affiliation(s)
- Meng-Qi Yan
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China.
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46
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Latham J, Brandenburger E, Shepherd SA, Menon BRK, Micklefield J. Development of Halogenase Enzymes for Use in Synthesis. Chem Rev 2017; 118:232-269. [PMID: 28466644 DOI: 10.1021/acs.chemrev.7b00032] [Citation(s) in RCA: 199] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nature has evolved halogenase enzymes to regioselectively halogenate a diverse range of biosynthetic precursors, with the halogens introduced often having a profound effect on the biological activity of the resulting natural products. Synthetic endeavors to create non-natural bioactive small molecules for pharmaceutical and agrochemical applications have also arrived at a similar conclusion: halogens can dramatically improve the properties of organic molecules for selective modulation of biological targets in vivo. Consequently, a high proportion of pharmaceuticals and agrochemicals on the market today possess halogens. Halogenated organic compounds are also common intermediates in synthesis and are particularly valuable in metal-catalyzed cross-coupling reactions. Despite the potential utility of organohalogens, traditional nonenzymatic halogenation chemistry utilizes deleterious reagents and often lacks regiocontrol. Reliable, facile, and cleaner methods for the regioselective halogenation of organic compounds are therefore essential in the development of economical and environmentally friendly industrial processes. A potential avenue toward such methods is the use of halogenase enzymes, responsible for the biosynthesis of halogenated natural products, as biocatalysts. This Review will discuss advances in developing halogenases for biocatalysis, potential untapped sources of such biocatalysts and how further optimization of these enzymes is required to achieve the goal of industrial scale biohalogenation.
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Affiliation(s)
- Jonathan Latham
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester , 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Eileen Brandenburger
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester , 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Sarah A Shepherd
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester , 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Binuraj R K Menon
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester , 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Jason Micklefield
- School of Chemistry and Manchester Institute of Biotechnology, The University of Manchester , 131 Princess Street, Manchester M1 7DN, United Kingdom
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47
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Wu W, Teng Q, Chua YY, Huynh HV, Duong HA. Iron-Catalyzed Cross-Coupling Reactions of Arylmagnesium Reagents with Aryl Chlorides and Tosylates: Influence of Ligand Structural Parameters and Identification of a General N-Heterocyclic Carbene Ligand. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00180] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenqin Wu
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8, Biomedical Grove, Neuros, #07-01, Singapore 138665, Republic of Singapore
| | - Qiaoqiao Teng
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Republic of Singapore
| | - Yi-Yuan Chua
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8, Biomedical Grove, Neuros, #07-01, Singapore 138665, Republic of Singapore
| | - Han Vinh Huynh
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Republic of Singapore
| | - Hung A. Duong
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8, Biomedical Grove, Neuros, #07-01, Singapore 138665, Republic of Singapore
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48
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Highly Dispersed Palladium Nanoparticle-Loaded Magnetic Catalyst (FeS@EP–AG–Pd) for Suzuki Reaction in Water. Catal Letters 2017. [DOI: 10.1007/s10562-017-2009-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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49
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Marelli E, Renault Y, Sharma SV, Nolan SP, Goss RJM. Mild, Aqueous α-Arylation of Ketones: Towards New Diversification Tools for Halogenated Metabolites and Drug Molecules. Chemistry 2017; 23:3832-3836. [PMID: 28195381 DOI: 10.1002/chem.201700680] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 11/11/2022]
Abstract
The palladium-catalysed aqueous α-arylation of ketones was developed and tested for a large variety of reaction partners. These mild conditions enabled the coupling of aryl/alkyl-ketones with N-protected halotryptophans, heterocyclic haloarenes, and challenging base-sensitive compounds. The synthetic potential of this new methodology for the diversification of complex bioactive molecules was exemplified by derivatising prochlorperazine. The methodology is mild, aqueous and flexible, representing a means of functionalizing a wide range of halo-aromatics and therefore has the potential to be extended to complex molecule diversification.
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Affiliation(s)
- Enrico Marelli
- EaStCHEM, School of Chemistry and BSRC, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Yohann Renault
- EaStCHEM, School of Chemistry and BSRC, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Sunil V Sharma
- EaStCHEM, School of Chemistry and BSRC, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
| | - Steven P Nolan
- Chemistry Department, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia.,Department of Inorganic and Physical Chemistry, Universiteit Gent, Krijgslaan 281-S3, 9000, Ghent, Belgium
| | - Rebecca J M Goss
- EaStCHEM, School of Chemistry and BSRC, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK
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50
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Lamei K, Eshghi H, Bakavoli M, Rostamnia S. Highly dispersed copper/ppm palladium nanoparticles as novel magnetically recoverable catalyst for Suzuki reaction under aqueous conditions at room temperature. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3743] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Kamran Lamei
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad Mashhad 91775‐1436 Iran
| | - Hossein Eshghi
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad Mashhad 91775‐1436 Iran
| | - Mehdi Bakavoli
- Department of ChemistryFaculty of ScienceFerdowsi University of Mashhad Mashhad 91775‐1436 Iran
| | - Sadegh Rostamnia
- Organic and Nano Group (ONG)Department of Chemistry, Faculty of ScienceUniversity of Maragheh Maragheh Iran
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