1
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Parisot W, Haddad M, Phansavath P, Lefèvre G, Ratovelomanana-Vidal V. A Versatile, Functional Group-Tolerant, and Bench-Stable Iron Precatalyst for Building Arene and Triazine Rings by [2+2+2] Cycloadditions. Chemistry 2024; 30:e202400096. [PMID: 38319874 DOI: 10.1002/chem.202400096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/08/2024]
Abstract
We report an efficient iron-catalyzed cycloaddition procedure leading to the construction of (hetero)aromatic rings by alkyne [2+2+2] cycloisomerization. This method relies on the use of an air-stable (N,N)Fe(II) precursor easily prepared from a commercially available ligand derived from 1,10-phenanthroline, reduced in situ into a catalytically active non-innocent (N,N ⋅-)2Fe(II) species. This system displays a large scope application, operates under mild conditions and at low catalytic charges (25 cycloadducts formed, up to 1.5 mol% catalyst). Moreover, this method also enables access to 29 cycloadducts by cross-cycloisomerization between 1,6- or 1,7-diynes and alkynes in near-equimolar conditions. 1,3,5-Triazines can also be prepared with this procedure starting from the corresponding cyanamides. Scale-up reactions and post-functionalization of several cycloadducts also show that this [2+2+2] cycloaddition can be used in multistep sequences.
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Affiliation(s)
- William Parisot
- PSL University, Chimie ParisTech, CNRS UMR 8060, Institute of Chemistry for Life and Health Sciences, CSB2D Team, 75005, Paris, France
| | - Mansour Haddad
- PSL University, Chimie ParisTech, CNRS UMR 8060, Institute of Chemistry for Life and Health Sciences, CSB2D Team, 75005, Paris, France
| | - Phannarath Phansavath
- PSL University, Chimie ParisTech, CNRS UMR 8060, Institute of Chemistry for Life and Health Sciences, CSB2D Team, 75005, Paris, France
| | - Guillaume Lefèvre
- PSL University, Chimie ParisTech, CNRS UMR 8060, Institute of Chemistry for Life and Health Sciences, CSB2D Team, 75005, Paris, France
| | - Virginie Ratovelomanana-Vidal
- PSL University, Chimie ParisTech, CNRS UMR 8060, Institute of Chemistry for Life and Health Sciences, CSB2D Team, 75005, Paris, France
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2
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Qin Q, Cheng Z, Jiao N. Recent Applications of Trifluoromethanesulfonic Anhydride in Organic Synthesis. Angew Chem Int Ed Engl 2023; 62:e202215008. [PMID: 36541579 DOI: 10.1002/anie.202215008] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/16/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022]
Abstract
Trifluoromethanesulfonic anhydride has been widely used in synthetic organic chemistry, not only for the conversion of various oxygen-containing compounds to the triflates, but also for the electrophilic activation and further conversion of amides, sulfoxides, and phosphorus oxides. In recent years, the utilization of Tf2 O as an activator for nitrogen-containing heterocycles, nitriles and nitro groups has become a promising tool for the development of new valuable methods with considerable success. In addition, Tf2 O has been used as an efficient radical trifluoromethylation and trifluoromethylthiolation reagent due to the contained SO2 CF3 fragment, and significant progress has been made in this area. This review summarizes the recent progress in the applications of Tf2 O in the above two aspects, and aims to illustrate the role and potential application of this reagent in organic synthesis.
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Affiliation(s)
- Qixue Qin
- College of Chemistry and Pharmaceutical Sciences, Qingdao Agricultural University, Qingdao, Shandong, 266109, China
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
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3
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Kato Y, Yoshino T, Gao M, Hasegawa JY, Kojima M, Matsunaga S. Iron/Photosensitizer Hybrid System Enables the Synthesis of Polyaryl-Substituted Azafluoranthenes. J Am Chem Soc 2022; 144:18450-18458. [PMID: 36167469 DOI: 10.1021/jacs.2c06993] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Photosensitization of organometallics is a privileged strategy that enables challenging transformations in transition-metal catalysis. However, the usefulness of such photocatalyst-induced energy transfer has remained opaque in iron-catalyzed reactions despite the intriguing prospects of iron catalysis in synthetic chemistry. Herein, we demonstrate the use of iron/photosensitizer-cocatalyzed cycloaddition to synthesize polyarylpyridines and azafluoranthenes, which have been scarcely accessible using the established iron-catalyzed protocols. Mechanistic studies indicate that triplet energy transfer from the photocatalyst to a ferracyclic intermediate facilitates the thermally demanding nitrile insertion and accounts for the distinct reactivity of the hybrid system. This study thus provides the first demonstration of the role of photosensitization in overcoming the limitations of iron catalysis.
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Affiliation(s)
- Yoshimi Kato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo 060-0812, Japan
| | - Min Gao
- Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Jun-Ya Hasegawa
- Institute for Catalysis, Hokkaido University, Sapporo 001-0021, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Hokkaido University, Sapporo 060-0812, Japan
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4
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Cai J, Cen K, Usman M, Shen W, Liu M, Yang R. A review for the assembly of multi-substituted pyridines via Co-catalyzed [2+2+2] cycloaddition with nitriles. Org Biomol Chem 2022; 20:7391-7404. [DOI: 10.1039/d2ob01344d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the recent years, many methods for the facile synthesis of pyridines and their derivatives have been developed. The [2+2+2] cycloaddition reaction of alkynes and nitriles catalyzed by transition metals...
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5
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Fan JT, Fan XH, Gao CY, Wei J, Yang LM. Regioselectively switchable alkyne cyclotrimerization catalyzed by the system of Ni(II)/bidentate P-ligand/Zn with ZnI 2 as additive. Org Chem Front 2022. [DOI: 10.1039/d1qo01913a] [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
A simple catalyst system of Ni(PPh3)2Cl2/dppb or dppm/Zn can effect an efficient and regioselectively controlled alkyne cyclotrimerization to form 1,2,4- (with no additive) or 1,3,5-regioisomers (with the use of ZnI2...
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6
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Chai J, Nie Y, Wang Z, Cheng L, Liu YG, Wu J. Metal Free Access to Polysubstituted Pyrimidines via Nitrile Activation and [2+2+2] Cycloaddition. Chemistry 2021; 27:17565-17569. [PMID: 34626013 DOI: 10.1002/chem.202103219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Indexed: 11/08/2022]
Abstract
Tf2 O mediated intermolecular / intramolecular [2+2+2] cycloaddition between alkynes and nitriles has been developed for efficient construction of polysubstituted pyrimidines and bicyclopyrimidines. In presence of Tf2 O, aza-allene species were generated in situ through nitrile activation and subsequently participated in the [2+2+2] cycloaddition, which was fully supported by deuteration experiments. The reaction had good substrate extensibility with moderate to excellent yield including trimethylsilylalkynes. The method was utilized as a synthetic tool in the preparation of a luminescent metal complex.
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Affiliation(s)
- Jinkui Chai
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Yu Nie
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Zhao Wang
- Henan University of Animal Husbandry and Economy, Zhengzhou, 450001, P. R. China
| | - Li Cheng
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Ying-Guo Liu
- Division of Molecular Catalysis & Synthesis, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Junliang Wu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, P. R. China
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7
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Harper JL, Felten S, Stolley RM, Hegg AS, Cheong PHY, Louie J. Origins of Regio- and Chemoselectivity in Iron-PDAI-Catalyzed [2+2+2] Cycloaddition Syntheses of 4,6-Disubstituted 2-Aminopyridines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03871] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jordan L. Harper
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Stephanie Felten
- Department of Chemistry, The University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Ryan M. Stolley
- Department of Chemistry, The University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Alexander S. Hegg
- Department of Chemistry, The University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
| | - Paul H.-Y. Cheong
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Janis Louie
- Department of Chemistry, The University of Utah, 315 S 1400 E, Salt Lake City, Utah 84112, United States
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8
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Cobalt-catalyzed regioselective cycloaddition of unsymmetric diynes and nitriles to form substituted pyridines. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Liu Y, Luo P, Fu Y, Hao T, Liu X, Ding Q, Peng Y. Recent advances in the tandem annulation of 1,3-enynes to functionalized pyridine and pyrrole derivatives. Beilstein J Org Chem 2021; 17:2462-2476. [PMID: 34630726 PMCID: PMC8474070 DOI: 10.3762/bjoc.17.163] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/11/2021] [Indexed: 12/11/2022] Open
Abstract
Great progress has been made in the tandem annulation of enynes in the past few years. This review only presents the corresponding reactions of 1,3-enyne structural motifs to provide the functionalized pyridine and pyrrole derivatives. The functionalization reactions cover iodination, bromination, trifluoromethylation, azidation, carbonylation, arylation, alkylation, selenylation, sulfenylation, amidation, esterification, and hydroxylation. We also briefly introduce the applications of the products and the reaction mechanisms for the synthesis of corresponding N-heterocycles.
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Affiliation(s)
- Yi Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Puying Luo
- Department of Gynaecology, Jiangxi Provincial People's Hospital Affiliated to Nanchang University, 92 Aiguo Road, Nanchang, Jiangxi, 330006, China
| | - Yang Fu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Tianxin Hao
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Xuan Liu
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Qiuping Ding
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
| | - Yiyuan Peng
- Key Laboratory for Green Chemistry of Jiangxi Province, Key Laboratory of Functional Small Organic Molecules, Ministry of Education, Jiangxi Normal University, 99 Ziyang Road, Nanchang 330022, China
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10
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Lai X, Hu M, Li Y. DFT studies on Ni-catalyzed intermolecular cycloaddition of diynes with methyleneaziridines. Dalton Trans 2021; 50:12308-12315. [PMID: 34519728 DOI: 10.1039/d1dt01734a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The mechanisms of nickel-catalyzed intermolecular cycloaddition of diynes with methyleneaziridines to form substituted pyrroles have been investigated with DFT calculations. The DFT results don't support the originally proposed mechanisms, which involve β-C elimination or α-C elimination. Detailed calculations revealed that the preferred catalytic cycle is a combination of the cod dissociative mechanism and the cod associative mechanism, which is comprised of four stages: oxidative addition, ligand substitution of the diyne by cod, alkyne insertion and reductive elimination. Each of the alkyne moieties of the diyne substrate has an important role: one alkyne moiety acts as the reactant and inserts into the Ni-C bond to form the cycle expansion complex; the other free alkyne moiety has an effect as a ligand coordinated to the Ni center to promote the oxidative addition step (rate-determining step). Since there is no free alkyne in the monoalkyne substrate to coordinate to the Ni center, the monoalkyne catalytic cycle is unfavorable because of the high energy barrier for the oxidative addition step.
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Affiliation(s)
- Xiaoling Lai
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, P. R. China. .,School of Chemical Engineering, Dalian University of Technology, Panjin 124221, P. R. China
| | - Mengwei Hu
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, P. R. China. .,School of Chemical Engineering, Dalian University of Technology, Panjin 124221, P. R. China
| | - Yang Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, P. R. China. .,School of Chemical Engineering, Dalian University of Technology, Panjin 124221, P. R. China
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11
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Huh DN, Cheng Y, Frye CW, Egger DT, Tonks IA. Multicomponent syntheses of 5- and 6-membered aromatic heterocycles using group 4-8 transition metal catalysts. Chem Sci 2021; 12:9574-9590. [PMID: 34349931 PMCID: PMC8293814 DOI: 10.1039/d1sc03037j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/28/2021] [Indexed: 12/31/2022] Open
Abstract
In this Perspective, we discuss recent syntheses of 5- and 6-membered aromatic heterocycles via multicomponent reactions (MCRs) that are catalyzed by group 4-8 transition metals. These MCRs can be categorized based on the substrate components used to generate the cyclized product, as well as on common mechanistic features between the catalyst systems. These particular groupings are intended to highlight mechanistic and strategic similarities between otherwise disparate transition metals and to encourage future work exploring related systems with otherwise-overlooked elements. Importantly, in many cases these early- to mid-transition metal catalysts have been shown to be as effective for heterocycle syntheses as the later (and more commonly implemented) group 9-11 metals.
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12
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Cho IY, Kim WG, Jeon JH, Lee JW, Seo JK, Seo J, Hong SY. Nickelocene as an Air- and Moisture-Tolerant Precatalyst in the Regioselective Synthesis of Multisubstituted Pyridines. J Org Chem 2021; 86:9328-9343. [PMID: 34190562 DOI: 10.1021/acs.joc.1c00577] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ni(COD)2-catalyzed cycloaddition reactions to access pyridines have been extensively studied. However, this catalyst typically requires drying procedures and inert-atmosphere techniques for the reactions. Herein, we report operationally simple nickel(0) catalysis to access substituted pyridines from various nitriles and 1,6-diynes without the aid of air-free techniques. The Ni-Xantphos-based catalytic manifold is tolerant to air, moisture, and heat while promoting the [2 + 2 + 2] cycloaddition reactions with high reaction yields and broad substrate scope. In addition, we disclose that not only the steric effect but also the frontier molecular orbital interactions can play a critical role in determining the regiochemical outcome of nickel-catalyzed [2 + 2 + 2] cycloaddition for the synthesis of substituted pyridines.
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Affiliation(s)
| | - Woo Gyum Kim
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | | | | | | | - Jongcheol Seo
- Department of Chemistry, Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea
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13
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Doll JS, Eichelmann R, Hertwig LE, Bender T, Kohler VJ, Bill E, Wadepohl H, Roşca DA. Iron-Catalyzed Trimerization of Terminal Alkynes Enabled by Pyrimidinediimine Ligands: A Regioselective Method for the Synthesis of 1,3,5-Substituted Arenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00978] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Julianna S. Doll
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Robert Eichelmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Leif E. Hertwig
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Thilo Bender
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Vincenz J. Kohler
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstraße 24-36, Mülheim/Ruhr 45470, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
| | - Dragoş-Adrian Roşca
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 276, Heidelberg 69120, Germany
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14
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Wang CS, Sun Q, García F, Wang C, Yoshikai N. Robust Cobalt Catalyst for Nitrile/Alkyne [2+2+2] Cycloaddition: Synthesis of Polyarylpyridines and Their Mechanochemical Cyclodehydrogenation to Nitrogen-Containing Polyaromatics*. Angew Chem Int Ed Engl 2021; 60:9627-9634. [PMID: 33559370 DOI: 10.1002/anie.202017220] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Indexed: 12/16/2022]
Abstract
The transition-metal-catalyzed [2+2+2] cycloaddition of nitriles and alkynes is an established synthetic approach to pyridines; however, these cycloadditions often rely on the use of tethered diynes or cyanoalkynes as one of the reactants. Thus, examples of efficient, fully intermolecular catalytic [2+2+2] pyridine synthesis, especially those employing unactivated nitriles and internal alkynes leading to pentasubstituted pyridines, remain scarce. Herein, we report on simple and inexpensive catalytic systems based on cobalt(II) iodide, 1,3-bis(diphenylphosphino)propane, and Zn that promote [2+2+2] cycloaddition of various nitriles and diarylacetylenes for the synthesis of a broad range of polyarylated pyridines. DFT studies support a reaction pathway involving oxidative coupling of two alkynes, insertion of the nitrile into a cobaltacyclopentadiene, and C-N reductive elimination. The resulting tetra- and pentaarylpyridines serve as precursors to hitherto unprecedented nitrogen-containing polycyclic aromatic hydrocarbons via mechanochemically assisted multifold reductive cyclodehydrogenation.
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Affiliation(s)
- Chang-Sheng Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Qiao Sun
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Felipe García
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Chen Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemical Process, Shaoxing University, Shaoxing, 312000, P. R. China
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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15
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Wang C, Sun Q, García F, Wang C, Yoshikai N. Robust Cobalt Catalyst for Nitrile/Alkyne [2+2+2] Cycloaddition: Synthesis of Polyarylpyridines and Their Mechanochemical Cyclodehydrogenation to Nitrogen‐Containing Polyaromatics**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chang‐Sheng Wang
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Qiao Sun
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Felipe García
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Chen Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemical Process Shaoxing University Shaoxing 312000 P. R. China
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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16
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Cai J, Bai LG, Zhang Y, Wang ZK, Yao F, Peng JH, Yan W, Wang Y, Zheng C, Liu WB. Ni-catalyzed enantioselective [2 + 2 + 2] cycloaddition of malononitriles with alkynes. Chem 2021. [DOI: 10.1016/j.chempr.2021.02.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Yu X, Zheng H, Zhao H, Lee BC, Koh MJ. Iron‐Catalyzed Regioselective Alkenylboration of Olefins. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202012607] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaolong Yu
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Hongling Zheng
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Haonan Zhao
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Boon Chong Lee
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Ming Joo Koh
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
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18
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Yu X, Zheng H, Zhao H, Lee BC, Koh MJ. Iron‐Catalyzed Regioselective Alkenylboration of Olefins. Angew Chem Int Ed Engl 2020; 60:2104-2109. [DOI: 10.1002/anie.202012607] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaolong Yu
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Hongling Zheng
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Haonan Zhao
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Boon Chong Lee
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
| | - Ming Joo Koh
- Department of Chemistry National University of Singapore 12 Science Drive 2 117549 Singapore Republic of Singapore
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19
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Min X, Ji D, Guan Y, Guo S, Hu Y, Wan B, Chen Q. Visible Light Induced Bifunctional Rhodium Catalysis for Decarbonylative Coupling of Imides with Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010782] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xiang‐Ting Min
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu‐Qing Guan
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Shi‐Yu Guo
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Boshun Wan
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
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20
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Min X, Ji D, Guan Y, Guo S, Hu Y, Wan B, Chen Q. Visible Light Induced Bifunctional Rhodium Catalysis for Decarbonylative Coupling of Imides with Alkynes. Angew Chem Int Ed Engl 2020; 60:1583-1587. [DOI: 10.1002/anie.202010782] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Xiang‐Ting Min
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ding‐Wei Ji
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yu‐Qing Guan
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Shi‐Yu Guo
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Yan‐Cheng Hu
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Boshun Wan
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 China
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21
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Du F, Li S, Jiang K, Zeng R, Pan X, Lan Y, Chen Y, Wei Y. Iron‐Catalyzed Radical Relay Enabling the Modular Synthesis of Fused Pyridines from Alkyne‐Tethered Oximes and Alkenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010752] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fei Du
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Shi‐Jun Li
- College of Chemistry and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
| | - Kun Jiang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Rong Zeng
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Xi‐Chun Pan
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Yu Lan
- College of Chemistry and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry Chongqing University Chongqing 400030 China
| | - Ying‐Chun Chen
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ye Wei
- College of Pharmacy Army Medical University Chongqing 400038 China
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22
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Du F, Li S, Jiang K, Zeng R, Pan X, Lan Y, Chen Y, Wei Y. Iron‐Catalyzed Radical Relay Enabling the Modular Synthesis of Fused Pyridines from Alkyne‐Tethered Oximes and Alkenes. Angew Chem Int Ed Engl 2020; 59:23755-23762. [DOI: 10.1002/anie.202010752] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Fei Du
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Shi‐Jun Li
- College of Chemistry and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
| | - Kun Jiang
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Rong Zeng
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Xi‐Chun Pan
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Yu Lan
- College of Chemistry and Institute of Green Catalysis Zhengzhou University Zhengzhou Henan 450001 China
- School of Chemistry and Chemical Engineering and Chongqing Key Laboratory of Theoretical and Computational Chemistry Chongqing University Chongqing 400030 China
| | - Ying‐Chun Chen
- College of Pharmacy Army Medical University Chongqing 400038 China
| | - Ye Wei
- College of Pharmacy Army Medical University Chongqing 400038 China
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23
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Gore BS, Chiang CH, Lee CC, Shih YL, Wang JJ. De Novo Protocol for the Construction of Benzo[ a]fluorenes via Nitrile/Alkene Activation. Org Lett 2020; 22:7848-7852. [PMID: 33021802 DOI: 10.1021/acs.orglett.0c02739] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Unprecedented chemo- and regioselective synthesis of benzo[a]fluorenes and naphthamide-substituted benzo[a]fluorenes were constructed from the reaction of (E)-2-aroyl-3-(2-(arylalkynes/alkenes)aryl)acrylonitrile scaffolds under metal-free conditions via the activation of nitriles and alkenes, respectively. A tentative reaction mechanism was proposed for this homofunctionalization of nitriles. Control experiments showed that the reaction proceeds via selective nitrile or alkene protonation, depending upon the substrates. Additionally, we demonstrated an alternative expeditious route for the synthesis of disubstituted benzo[a]fluorenes in the presence of TfOH alone.
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Affiliation(s)
- Babasaheb Sopan Gore
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Chun-Hsien Chiang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Chein Chung Lee
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Yi-Lun Shih
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan First Road, Sanmin District, Kaohsiung City 807, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, No. 100, Tzyou First Road, Sanmin District, Kaohsiung City 807, Taiwan
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24
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Nagata T, Obora Y. Transition‐Metal‐Mediated/Catalyzed Synthesis of Pyridines, Pyrimidines, and Triazines by [2+2+2] Cycloaddition Reactions. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000240] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Tatsuki Nagata
- Department of Chemistry and Materials Engineering Kansai University Suita Osaka 564-8680 Japan
| | - Yasushi Obora
- Department of Chemistry and Materials Engineering Kansai University Suita Osaka 564-8680 Japan
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25
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Provis-Evans CB, Lau S, Krewald V, Webster RL. Regioselective Alkyne Cyclotrimerization with an In Situ-Generated [Fe(II)H(salen)]·Bpin Catalyst. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03068] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cei B. Provis-Evans
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Samantha Lau
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Vera Krewald
- Department of Chemistry, Theoretical Chemistry, TU Darmstadt, Alarich-Weiss-St. 4, 64287 Darmstadt, Germany
| | - Ruth L. Webster
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
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26
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Neumeier M, Chakraborty U, Schaarschmidt D, de la Pena O'Shea V, Perez‐Ruiz R, Jacobi von Wangelin A. Combined Photoredox and Iron Catalysis for the Cyclotrimerization of Alkynes. Angew Chem Int Ed Engl 2020; 59:13473-13478. [PMID: 32190960 PMCID: PMC7496134 DOI: 10.1002/anie.202000907] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Indexed: 11/11/2022]
Abstract
Successful combinations of visible-light photocatalysis with metal catalysis have recently enabled the development of hitherto unknown chemical reactions. Dual mechanisms from merging metal-free photocatalysts and earth-abundant metal catalysts are still in their infancy. We report a photo-organo-iron-catalyzed cyclotrimerization of alkynes by photoredox activation of a ligand-free Fe catalyst. The reaction operates under very mild conditions (visible light, 20 °C, 1 h) with 1-2 mol % loading of the three catalysts (dye, amine, FeCl2 ).
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Affiliation(s)
- Michael Neumeier
- Department of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
| | - Uttam Chakraborty
- Department of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
| | - Dieter Schaarschmidt
- Department of ChemistryUniversity of HamburgMartin Luther King Pl 620146HamburgGermany
| | | | - Raul Perez‐Ruiz
- Photoactivated ProcessesIMDEA Energy InstituteRamin de la Sagra 328935MistolesSpain
- Departamento de QuímicaUniversitat Politècnica de ValènciaCamino de Vera s/n46022ValenciaSpain
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27
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Sakata K, Shimada S, Takeuchi R. Regioselectivity in the Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of Unsymmetrical α,ω-Diynes with Nitrile: A DFT Study. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00152] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ken Sakata
- Faculty of Pharmaceutical Sciences, Toho University, Miyama, Funabashi, Chiba 274-8510, Japan
| | - Satoshi Shimada
- Faculty of Pharmaceutical Sciences, Hoshi University, Ebara, Shinagawa-ku, Tokyo 142-8501, Japan
| | - Ryo Takeuchi
- Department of Chemistry and Biological Science, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
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28
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Neumeier M, Chakraborty U, Schaarschmidt D, Pena O'Shea V, Perez‐Ruiz R, Jacobi von Wangelin A. Combined Photoredox and Iron Catalysis for the Cyclotrimerization of Alkynes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000907] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Michael Neumeier
- Department of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
| | - Uttam Chakraborty
- Department of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
| | - Dieter Schaarschmidt
- Department of Chemistry University of Hamburg Martin Luther King Pl 6 20146 Hamburg Germany
| | - Victor Pena O'Shea
- Photoactivated Processes IMDEA Energy Institute Ramin de la Sagra 3 28935 Mistoles Spain
| | - Raul Perez‐Ruiz
- Photoactivated Processes IMDEA Energy Institute Ramin de la Sagra 3 28935 Mistoles Spain
- Departamento de Química Universitat Politècnica de València Camino de Vera s/n 46022 Valencia Spain
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29
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Yao X, Qi L, Li R, Zhen Q, Liu J, Zhao Z, Shao Y, Hu M, Chen J. Palladium-Catalyzed Cascade Reactions of δ-Ketonitriles with Arylboronic Acids: Synthesis of Pyridines. ACS COMBINATORIAL SCIENCE 2020; 22:114-119. [PMID: 32049476 DOI: 10.1021/acscombsci.9b00198] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study presents the first example of the Pd-catalyzed cascade reactions of 5-oxohexanenitrile with arylboronic acids, affording important synthon 2-methylpyridines that can be further translated through C(sp3)-H functionalization to construct pyridine derivatives. Furthermore, this chemistry allows 5-oxo-5-arylpentanenitrile to react with arylboronic acids to provide unsymmetrical 2,6-diarylpyridines. This protocol paves the way for the practical and atom economical syntheses of valuable pyridines with broad functional groups in moderate to excellent yields under mild conditions.
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Affiliation(s)
- Xinrong Yao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Linjun Qi
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Renhao Li
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, P. R. China
| | - Qianqian Zhen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jichao Liu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Zhiwei Zhao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Maolin Hu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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30
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Qian LL, Min XT, Hu YC, Shen BX, Yang SN, Wan B, Chen QA. Ruthenium(ii)-catalyzed intermolecular annulation of alkenyl sulfonamides with alkynes: access to bicyclic sultams. Chem Commun (Camb) 2020; 56:2614-2617. [PMID: 32016279 DOI: 10.1039/d0cc00093k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A ruthenium-catalyzed allylic C(sp3)-H activation strategy has been employed to develop an intermolecular coupling of alkenyl sulfonamides with alkynes. This protocol features the diastereoselective construction of [3.3.0] and [4.3.0] bicyclic sultams in one step.
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Affiliation(s)
- Lei-Lei Qian
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiang-Ting Min
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Bing-Xue Shen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Sa-Na Yang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China. and University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Boshun Wan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
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31
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Xie Y, Wu C, Jia C, Tung CH, Wang W. Iron–cobalt-catalyzed heterotrimerization of alkynes and nitriles to polyfunctionalized pyridines. Org Chem Front 2020. [DOI: 10.1039/d0qo00693a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The iron(ii)–cobalt(ii) co-catalyzed heterotrimerization of alkynes and nitriles enables the synthesis of 2,3,4,5,6-pentafunctionalized pyridines in a single step.
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Affiliation(s)
- Yufang Xie
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Chengjuan Wu
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Changhao Jia
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Chen-Ho Tung
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
| | - Wenguang Wang
- Key Lab of Colloid and Interface Chemistry
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
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32
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Qi L, Li R, Yao X, Zhen Q, Ye P, Shao Y, Chen J. Syntheses of Pyrroles, Pyridines, and Ketonitriles via Catalytic Carbopalladation of Dinitriles. J Org Chem 2019; 85:1097-1108. [PMID: 31877047 DOI: 10.1021/acs.joc.9b02999] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The first example of the Pd-catalyzed addition of organoboron reagents to dinitriles, as an efficient means of preparing 2,5-diarylpyrroles and 2,6-diarylpyridines, has been discussed here. Furthermore, the highly selective carbopalladation of dinitriles with organoboron reagents to give long-chain ketonitriles has been developed as well. Based on the broad scope of substrates, excellent functional group tolerance, and use of commercially available substrates, the Pd-catalyzed addition reaction of arylboronic acid and dinitriles is expected to be significant in future synthetic procedures.
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Affiliation(s)
- Linjun Qi
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Renhao Li
- School of Pharmaceutical Sciences , Wenzhou Medical University , Wenzhou 325035 , P. R. China
| | - Xinrong Yao
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Qianqian Zhen
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Pengqing Ye
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Yinlin Shao
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
| | - Jiuxi Chen
- College of Chemistry & Materials Engineering , Wenzhou University , Wenzhou 325035 , P. R. China
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33
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Kalaramna P, Bhatt D, Sharma H, Goswami A. An Atom‐Economical Approach to 2‐Aryloxypyridines and 2,2′/2,3′‐Diaryloxybipyridines
via
Ruthenium‐Catalyzed [2+2+2] Cycloadditions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Pratibha Kalaramna
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Divya Bhatt
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Himanshu Sharma
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
| | - Avijit Goswami
- Department of ChemistryIndian Institute of Technology Ropar Nangal Road Rupnagar Punjab-140001 India
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34
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Kalaramna P, Bhatt D, Sharma H, Goswami A. An Expeditious and Environmentally-Benign Approach to 2-Aryl/Heteroaryl Selenopyridines via Ruthenium Catalyzed [2+2+2] Cycloadditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Pratibha Kalaramna
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar, Punjab 140001 India
| | - Divya Bhatt
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar, Punjab 140001 India
| | - Himanshu Sharma
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar, Punjab 140001 India
| | - Avijit Goswami
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar, Punjab 140001 India
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35
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Qin Q, Luo X, Wei J, Zhu Y, Wen X, Song S, Jiao N. Acetonitrile Activation: An Effective Two‐Carbon Unit for Cyclization. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900947] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Qixue Qin
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Xiao Luo
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Yuchao Zhu
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Xiaojin Wen
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic DrugsSchool of Pharmaceutical SciencesPeking University Xue Yuan Rd. 38 Beijing 100191 China
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesEast China Normal University Shanghai 200062 China
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36
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Gujjarappa R, Vodnala N, Kumar M, Malakar CC. Pd-Catalyzed Decarboxylation and Dual C(sp3)–H Functionalization Protocols for the Synthesis of 2,4-Diarylpyridines. J Org Chem 2019; 84:5005-5020. [DOI: 10.1021/acs.joc.8b02971] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
| | - Nagaraju Vodnala
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
| | - Mohan Kumar
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
| | - Chandi C. Malakar
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
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37
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Qin Q, Luo X, Wei J, Zhu Y, Wen X, Song S, Jiao N. Acetonitrile Activation: An Effective Two-Carbon Unit for Cyclization. Angew Chem Int Ed Engl 2019; 58:4376-4380. [PMID: 30715785 DOI: 10.1002/anie.201900947] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 11/08/2022]
Abstract
A novel activation of acetonitrile for the construction of cyclobutenones by [2+2] cyclization was developed. Acetonitrile is utilized for the first time as two-carbon (C2) cyclization building block. The present protocol successfully inhibits the competitive cycloaddition with the C≡N bond of acetonitrile, but enables the in situ formation of an unsaturated carbon-carbon bond and the subsequent cycloaddition as a C2 unit. This chemistry features simple reaction conditions, high chemoselectivities, wide substrate scope, and offers a new and practical approach to cyclobutenones and cyclobuteneimines.
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Affiliation(s)
- Qixue Qin
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Xiao Luo
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Yuchao Zhu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Xiaojin Wen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing, 100191, China.,Shanghai Key Laboratory of Green Chemistry and Chemical Processes, East China Normal University, Shanghai, 200062, China
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38
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39
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Kelgokmen Y, Zora M. A new strategy for the synthesis of pyridines from N-propargylic β-enaminothiones. Org Biomol Chem 2019; 17:2529-2541. [DOI: 10.1039/c8ob03180k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new robust method for the synthesis of 2,4,5-trisubstituted pyridines with high efficiency and broad functional group tolerance is described.
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Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| | - Metin Zora
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
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40
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Liu Z, Zhu G, Gao W, Yang L, Ji H, Tong L, Tang B. Copper-catalyzed regioselective cyclization of vinyl azides by gem-difluoromethylene for trisubstituted pyridines. Org Chem Front 2019. [DOI: 10.1039/c8qo01212a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel copper-catalyzed cyclization of readily available vinyl azides with gem-difluoromethylene is described.
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Affiliation(s)
- Zhenhua Liu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Guangyu Zhu
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Wen Gao
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Lin Yang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Huimin Ji
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Lili Tong
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Bo Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
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41
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Saliba BM, Khanal S, O’Donnell MA, Queenan KE, Song J, Gentile MR, Mulcahy SP. Parallel Strategies for the Synthesis of Annulated Pyrido[3,4- b]indoles via Rh(I)- and Pd(0)-Catalyzed Cyclotrimerization. Tetrahedron Lett 2018; 59:4311-4314. [PMID: 31105351 PMCID: PMC6519955 DOI: 10.1016/j.tetlet.2018.10.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Two different pathways for the synthesis of annulated pyrido[3,4-b]indoles are reported using metal-catalyzed cyclotrimerization reactions. A stepwise process using Rh(I)-catalysis in the final step of the synthesis and a multicomponent, tandem catalytic approach using Pd(0)-catalysis both lead to complex nitrogen-containing heterocycles in good yields. Substituent effects are investigated for both pathways, demonstrating that the Pd(0)-catalyzed approach is more sensitive to electron- withdrawing groups.
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Affiliation(s)
- Bianca M. Saliba
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Satyam Khanal
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Michael A. O’Donnell
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Kathryn E. Queenan
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Junho Song
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Matthew R. Gentile
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
| | - Seann P. Mulcahy
- Department of Chemistry and Biochemistry, Providence College, 1 Cunningham Square, Providence, RI 02918
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42
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Guin S, Gupta R, Majee D, Samanta S. DABCO- and DBU-promoted one-pot reaction of N-sulfonyl ketimines with Morita-Baylis-Hillman carbonates: a sequential approach to (2-hydroxyaryl)nicotinate derivatives. Beilstein J Org Chem 2018; 14:2771-2778. [PMID: 30498526 PMCID: PMC6244423 DOI: 10.3762/bjoc.14.254] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 10/16/2018] [Indexed: 12/25/2022] Open
Abstract
An intriguing DABCO-catalyzed and DBU-promoted one-pot synthesis of an important class of (2-hydroxyaryl)pyridine derivatives bearing a carboxylate or a nitrile group suitably placed at C3 position of the aza-ring has been achieved in acceptable chemical yields with a broad functional group tolerance. This sequential C-C/C-N bond making process proceeds through a regioselective allylic alkylation/aza-Michael reaction between MBH carbonates derived from an acrylate/acrylonitrile and N-sulfonyl ketimines as C,N-binucleophiles catalyzed by DABCO, followed by elimination of SO2 under the influence of base and subsequent aromatization in an open atmosphere.
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Affiliation(s)
- Soumitra Guin
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, Madhya Pradesh, India
| | - Raman Gupta
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, Madhya Pradesh, India
| | - Debashis Majee
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, Madhya Pradesh, India
| | - Sampak Samanta
- Discipline of Chemistry, Indian Institute of Technology Indore, Simrol, Indore, 453552, Madhya Pradesh, India
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43
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Gomes F, Echeverria PG, Fürstner A. Iron- or Palladium-Catalyzed Reaction Cascades Merging Cycloisomerization and Cross-Coupling Chemistry. Chemistry 2018; 24:16814-16822. [PMID: 30183112 DOI: 10.1002/chem.201803360] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Indexed: 12/26/2022]
Abstract
A conceptually novel reaction cascade is presented, which allows readily available enynes to be converted into functionalized 1,3-dienes comprising a stereodefined tetrasubstituted alkene unit; such compounds are difficult to make by conventional means. The overall transformation is thought to commence with formation of a metallacyclic intermediate that evolves via cleavage of an unstrained C-X bond in its backbone. This non-canonical cycloisomerization process is followed by a cross-coupling step, such that reductive C-C bond formation regenerates the necessary low-valent metal fragment and hence closes an intricate catalytic cycle. The cascade entails the formation of two new C-C bonds at the expense of the constitutional C-X entity of the substrate: importantly, the extruded group X must not be a heteroelement (X=O, NR), since activated β-C-C bonds can also be broken. This concern was reduced to practice in two largely complementary formats: one procedure relies on the use of alkyl-Grignard reagents in combination with catalytic amounts of Fe(acac)3, whereas the second method amalgamates cycloisomerization with Suzuki coupling by recourse to arylboronic acids and phosphine-ligated palladium catalysts.
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Affiliation(s)
- Filipe Gomes
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | | | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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44
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Guin S, Majee D, Biswas S, Samanta S. Microwave-Assisted and Base-Promoted Domino Reaction of Cyclic N-Sulfonyl Ketimines with α,β-Disubstituted Nitroalkenes: A Green Access to 2-Hydroxyarylpyridines. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800298] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Soumitra Guin
- Discipline of Chemistry; Indian Institute of Technology Indore, Simrol; 453552 Indore India
| | - Debashis Majee
- Discipline of Chemistry; Indian Institute of Technology Indore, Simrol; 453552 Indore India
| | - Soumen Biswas
- Discipline of Chemistry; Indian Institute of Technology Indore, Simrol; 453552 Indore India
| | - Sampak Samanta
- Discipline of Chemistry; Indian Institute of Technology Indore, Simrol; 453552 Indore India
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45
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Meng YY, Kang WF, Si XJ, Song YY, Li YJ, Xu F. HKUST-1-Catalyzed Formation of C-C and C-N Bonds: Rapid Assembly of Substituted Pyridines from Propargylamine and Carbonyl Compounds. ChemistrySelect 2018. [DOI: 10.1002/slct.201801799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yan-Yu Meng
- Department of College of Science; Henan Agricultural University; Zhengzhou 450002, P. R. China
| | - Wei-Fen Kang
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; Zhengzhou 450002, P. R. China
| | - Xiao-Ju Si
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; Zhengzhou 450002, P. R. China
| | - Yuan-Yuan Song
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; Zhengzhou 450002, P. R. China
| | - Yan-Jie Li
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; Zhengzhou 450002, P. R. China
| | - Fen Xu
- Department of Material and Chemical Engineering; Zhengzhou University of Light Industry; Zhengzhou 450002, P. R. China
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46
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Liu J, Zhao S, Yan X, Wang Z, Zhang Y, Zhao P, Fang W, Zhuo K, Yue Y. Dual Roles of α,β-Unsaturated Oximes in Copper Catalyzed [3+3] Cyclization: Construction of 2,4,6-Trisubstituted Pyridines. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800318] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Jianming Liu
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Shufang Zhao
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Xuyang Yan
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Zhixian Wang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Yanyan Zhang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Peizheng Zhao
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Wenhan Fang
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Kelei Zhuo
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
| | - Yuanyuan Yue
- Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals; Henan Normal University; Xinxiang, Henan 453007 China
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47
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Liu J, Yan X, Yue Y, Zhao S, Zhang J, Sun Y, Zhuo K. CO
2
‐Promoted C=N Bond Cleavage of Amidines Leading to Multi‐Substituted Pyridines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800401] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Xuyang Yan
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Shufang Zhao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Jia Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Yangyang Sun
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of Education, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 People's Republic of China
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48
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Xu F, Kang WF, Wang Y, Liu CS, Tian JY, Zhao RR, Du M. Rhodium(III)-Catalyzed Cascade [5 + 1] Annulation/5-exo-Cyclization Initiated by C–H Activation: 1,6-Diynes as One-Carbon Reaction Partners. Org Lett 2018; 20:3245-3249. [DOI: 10.1021/acs.orglett.8b01105] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Fen Xu
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Wei-Fen Kang
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Yang Wang
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Chun-Sen Liu
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Jia-Yue Tian
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Rui-Rui Zhao
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
| | - Miao Du
- Henan Provincial Key Lab of Surface & Interface Science, Zhengzhou University of Light Industry, Zhengzhou 450002, China
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49
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Morita-Baylis-Hillman enal-based triple cascade strategy for anti-selective synthesis of highly functionalized tetrahydropyridines using iminium-enamine catalysis. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.081] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Bhatt D, Patel N, Chowdhury H, Bharatam PV, Goswami A. Additive-Controlled Switchable Selectivity from Cyanobenzenes to 2-Alkynylpyridines: Ruthenium(II)-Catalyzed [2+2+2] Cycloadditions of Diynes and Alkynylnitriles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800228] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Divya Bhatt
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar, Punjab- 140001 India
| | - Neha Patel
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Sector 67, S. A. S. Nagar 160062 Punjab India
| | - Hrishikesh Chowdhury
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar, Punjab- 140001 India
| | - Prasad V. Bharatam
- Department of Medicinal Chemistry; National Institute of Pharmaceutical Education and Research (NIPER); Sector 67, S. A. S. Nagar 160062 Punjab India
| | - Avijit Goswami
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road Rupnagar, Punjab- 140001 India
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