1
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Lázaro-Milla C, da Concepción E, Fernández I, Mascareñas JL, López F. Cobalt-Catalyzed (3 + 2) Cycloaddition of Cyclopropene-Tethered Alkynes: Versatile Access to Bicyclic Cyclopentadienyl Systems and Their CpM Complexes. ACS Catal 2024; 14:11574-11583. [PMID: 39119354 PMCID: PMC11307490 DOI: 10.1021/acscatal.4c03080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024]
Abstract
Low-valent cobalt complexes can promote intramolecular (3 + 2) cycloadditions of alkyne-tethered cyclopropenes to provide bicyclic systems containing highly substituted cyclopentadienyl moieties with electronically diverse functional groups. The adducts can be easily transformed into new types of CpRh(III) and CpIr(III) complexes, which show catalytic activity in several relevant transformations. Preliminary computational (DFT) and experimental studies provide relevant information on the mechanistic peculiarities of the cobalt-catalyzed process and allow us to rationalize its advantages over the homologous rhodium-promoted reaction.
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Affiliation(s)
- Carlos Lázaro-Milla
- Centro Singular de Investigación en
Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de
Química Orgánica, Universidade de Santiago de
Compostela, 15782 Santiago de Compostela, Spain
| | - Eduardo da Concepción
- Centro Singular de Investigación en
Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de
Química Orgánica, Universidade de Santiago de
Compostela, 15782 Santiago de Compostela, Spain
| | - Israel Fernández
- Departamento de Química Orgánica I,
Facultad de Ciencias Químicas, Universidad Complutense de
Madrid, 28040 Madrid, Spain
| | - José L. Mascareñas
- Centro Singular de Investigación en
Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de
Química Orgánica, Universidade de Santiago de
Compostela, 15782 Santiago de Compostela, Spain
| | - Fernando López
- Centro Singular de Investigación en
Química Biolóxica e Materiais Moleculares (CiQUS) and Departamento de
Química Orgánica, Universidade de Santiago de
Compostela, 15782 Santiago de Compostela, Spain
- Misión Biológica de Galicia,
Consejo Superior de Investigaciones Científicas
(CSIC), 36080 Pontevedra, Spain
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2
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Morton PA, Boyce AL, Pišpek A, Stewart LW, Ward DJ, Tegner BE, Macgregor SA, Mansell SM. Catalyst Design for Rh-Catalyzed Arene and Alkane C-H Borylation: The NHC Affects the Induction Period, and Indenyl is Superior to Cp. Organometallics 2024; 43:974-986. [PMID: 38756993 PMCID: PMC11094794 DOI: 10.1021/acs.organomet.4c00025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 03/05/2024] [Accepted: 03/14/2024] [Indexed: 05/18/2024]
Abstract
In order to establish design criteria for Rh C-H borylation catalysts, analogues of the successful catalyst [Rh(Ind)(SIDipp)(COE)] (Ind = η5-indenyl, SIDipp = 1,3-bis(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene, and COE = cis-cyclooctene) were synthesized by changing the indenyl and carbene ligands. [RhCp(SIDipp)(COE)] (1) formed alongside the C-C activated, cyclometalated byproduct [RhCp(κ2CAr,Ccarbene-SIDipp')(iPr)] (rac-2; SIDipp' = 1-(6-isopropylphenyl)-3-(2,6-diisopropylphenyl)-4,5-dihydroimidazol-2-ylidene). Computational modeling of COE dissociation showed that both C-C and C-H activation of the SIDipp aryl group is thermally attainable and reversible under experimental conditions, with the C-C activation products being the more thermodynamically stable species. Oxidative addition of 1 with SiH(OEt)3 gave the Rh silyl hydride [RhCp(H){Si(OEt)3}(SIDipp)] (rac-3). [Rh(Ind)(IDipp)(COE)] (4; IDipp = 1,3-bis(2,6-diisopropylphenyl)-imidazole-2-ylidene), the carbonyl analogue [Rh(Ind)(IDipp)(CO)] (5; νCO = 1940 cm-1, cf. 1944 cm-1 for [Rh(Ind)(SIDipp)(COE)]), and [Rh(Ind)(IMe4)(COE)] (6; IMe4 = 1,3,4,5-tetramethylimidazol-2-ylidene) were also characterized, but attempts to synthesize Rh carbene complexes with fluorenyl or 1,2,3,4-tetrahydrofluorenyl ligands were not successful. For the catalytic C-H borylation of benzene using B2pin2, 1 was inactive at 80 °C, and [Rh(Ind)(SIDipp)(COE)] was superior to all other complexes tested due to the shortest induction period. However, the addition of HBpin to precatalyst 4 eliminated the induction period. Catalytic n-alkane C-H borylation using [Rh(Ind)(NHC)(COE)] gave yields of up to 21% alkylBpin, but [RhCp*(C2H4)2] was the better catalyst.
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Affiliation(s)
- Paul A. Morton
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Abigayle L. Boyce
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Anamarija Pišpek
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Lennox W. Stewart
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | - Daniel J. Ward
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
| | | | | | - Stephen M. Mansell
- Institute of Chemical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, U.K.
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3
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Wang J, Luo MP, Gu YJ, Liu YY, Yin Q, Wang SG. Chiral Cp x Rhodium(III)-Catalyzed Enantioselective Aziridination of Unactivated Terminal Alkenes. Angew Chem Int Ed Engl 2024; 63:e202400502. [PMID: 38279683 DOI: 10.1002/anie.202400502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 01/28/2024]
Abstract
Chiral cyclopentadienyl-rhodium(III) Cpx Rh(III) catalysis has been demonstrated to be competent for catalyzing highly enantioselective aziridination of challenging unactivated terminal alkenes and nitrene sources. The chiral Cpx Rh(III) catalysis system exhibited outstanding catalytic performance and wide functional group tolerance, yielding synthetically important and highly valuable chiral aziridines with good to excellent yields and enantioselectivities (up to 99 % yield, 93 % ee). This protocol presents a novel and effective strategy for synthesizing enantioenriched aziridines from simple alkenes. Various transformations were performed on the aziridine products, illustrating the versatility and synthetic potential of this protocol for constructing highly functionalized compounds.
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Affiliation(s)
- Juanjuan Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Mu-Peng Luo
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yi-Jie Gu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yu-Ying Liu
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qin Yin
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shou-Guo Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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4
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Vollgraff T, Doppiu A, Sundermeyer J. Dihydroguaiazulenide Complexes and Catalysts of Group 8-12 Transition Metals: Ligands from Renewable Feedstock Replace, even Outmatch Petrochemical Based Cyclopentadienyl Chemistry. Chemistry 2024; 30:e202302994. [PMID: 37955549 DOI: 10.1002/chem.202302994] [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: 09/14/2023] [Revised: 11/09/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
We present an in-depth study of the sterically demanding Cp-synthon (8-H-GuaH)Li isolated from natural product guaiazulene (Gua) as a ligand transfer reagent towards late transition metal complex precursors. The synthesis and full characterization of selected, essentially unexplored homo- and heteroleptic 8-H-guaiazulenide complexes of iron, ruthenium, cobalt, rhodium, platinum, copper and zinc are discussed in detail. In order to demonstrate their potential in catalytic applications, [(GuaH)PtMe3 ] was selected. The latter proved an even higher catalytic activity in light induced olefin hydrosilylation at catalyst loads as low as 5 ppm than classical [CpPtMe3 ] in a typical test reaction of silicone elastomer fabrication. Our results demonstrate that traditional petrochemical based Cp metal chemistry and catalysis can be replaced, sometimes even outmatched by superior catalysts based on cheap building blocks from renewable feedstock.
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Affiliation(s)
- Tobias Vollgraff
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043, Marburg, Germany
| | - Angelino Doppiu
- Umicore AG&Co. KG, PMC R&D, Rodenbacher Chaussee 4, 63457, Hanau-Wolfgang, Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35043, Marburg, Germany
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5
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Krishna Rao MV, Kareem S, Vali SR, Subba Reddy BV. Recent advances in metal directed C-H amidation/amination using sulfonyl azides and phosphoryl azides. Org Biomol Chem 2023; 21:8426-8462. [PMID: 37831479 DOI: 10.1039/d3ob01160g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2023]
Abstract
Transition metal-catalyzed C-N bond formation reactions have gained popularity as a method for selectively transforming common C-H bonds into N-functionalized molecules. This approach is particularly useful for synthesizing aminated molecules, which require aminating reagents and amidated building blocks. Over the past two decades, significant advancements have been achieved in transition-metal-catalyzed C-H functionalization, with organic azides emerging as promising amino sources and internal oxidants. This review focuses on recent developments in utilizing sulfonyl and phosphoryl azides as building blocks for directed intra- and intermolecular C-H functionalization reactions. Specifically, it discusses methods for synthesizing sulfonamidates and phosphoramidates using sulfonyl and phosphoryl azides, respectively. The article highlights the potential of C-H functionalization reactions with organic azides for efficiently and sustainably synthesizing N-functionalized molecules, providing valuable insights into the latest advancements in this field.
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Affiliation(s)
- M V Krishna Rao
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - Shaik Kareem
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - Shaik Ramjan Vali
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
| | - B V Subba Reddy
- Department of Fluoro & Agrochemicals, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India.
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6
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Arsenov MA, Muratov DV, Nelyubina YV, Loginov DA. Tandem C-H Annulation Reaction of Benzaldehydes and Aminobenzoic Acids with Two Equivalents of Alkyne toward Isocoumarin-Conjugated Isoquinolinium Salts: A Family of Organic Luminophores. J Org Chem 2023. [PMID: 37327394 DOI: 10.1021/acs.joc.3c01008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A novel rhodium-catalyzed tandem C-H annulation of commercially available benzaldehydes and aminobenzoic acids with 2 equiv of alkyne is reported for the construction of isocoumarin-conjugated isoquinolinium salts that demonstrate diverse outstanding photoactivity. Depending on the substituents in the isoquinolinium moiety, they display either highly efficient fluorescence (up to 99% of quantum yield) or strong fluorescence quenching, which is provided by the transfer of the HOMO from the isoquinolinium to the isocoumarin moiety. Importantly, the functional groups in the benzaldehyde coupling partner also strongly affect the reaction selectivity, shifting the pathway to the formation of the photoinactive isocoumarin-substituted indenone imines and indenyl amines. Selective formation of the latter can be achieved by using a reduced amount of the oxidizing additive.
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Affiliation(s)
- Mikhail A Arsenov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Dmitry V Muratov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Dmitry A Loginov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
- G. V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow 117997, Russian Federation
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7
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Kharitonov VB, Muratov DV, Nelyubina YV, Shutkov IA, Nazarov AA, Loginov DA. Triphenylcyclopentadienyl Rhodium Complexes in Catalytic C-H Annulations. Application for Synthesis of Natural Isocoumarins. J Org Chem 2023. [PMID: 36758035 DOI: 10.1021/acs.joc.2c02526] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Efficient protocols for the synthesis of triphenylcyclopentadienyl rhodium halides [(1,2,4-C5Ph3H2)RhX2]2 (1a,b: X = Cl, I) starting from 1,2,4-triphenylcyclopentadiene or the cyclooctadiene derivative (1,2,4-C5Ph3H2)Rh(cod) (2) were developed. Iodide abstraction from 1b with thallium or silver salts allowed us to prepare rhodocenium [(1,2,4-C5Ph3H2)RhCp]PF6 (3PF6) and mesitylene complex [(1,2,4-C5Ph3H2)Rh(mesitylene)](SbF6)2 (4(SbF6)2). Halides 1a,b (at 0.5 mol % loading) showed high catalytic activity in the construction of C-C, C-O, and C-N bonds via the C(sp2)-H activation approach. Their efficiency was demonstrated in the synthesis of more than 40 examples of polycyclic organic compounds (such as isocoumarins and naphthalenes, as well as isoquinolinium and dibenzo[a,f]quinolizinium salts). The protocols developed tolerate a wide range of functional groups. In particular, they were successfully used for the atom- and step-economical synthesis of hydroxy-substituted isocoumarins, including the natural product oospalactone 7fe. The 6- or 8-hydroxy-substituted isocoumarins showed moderate antiproliferative activity against several human cell lines in vitro.
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Affiliation(s)
- Vladimir B Kharitonov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Dmitry V Muratov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Yulia V Nelyubina
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation
| | - Ilya A Shutkov
- Lomonosov Moscow State University, Faculty of Chemistry, 119991 Moscow, Russian Federation
| | - Alexey A Nazarov
- Lomonosov Moscow State University, Faculty of Chemistry, 119991 Moscow, Russian Federation
| | - Dmitry A Loginov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, 119991 Moscow, Russian Federation.,G. V. Plekhanov Russian University of Economics, 36 Stremyanny Per., Moscow 117997, Russian Federation
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8
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Wang R, Wang Y, Ding R, Staub PB, Zhao CZ, Liu P, Wang YM. Designed Iron Catalysts for Allylic C-H Functionalization of Propylene and Simple Olefins. Angew Chem Int Ed Engl 2023; 62:e202216309. [PMID: 36622129 PMCID: PMC9974915 DOI: 10.1002/anie.202216309] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 12/17/2022] [Accepted: 01/09/2023] [Indexed: 01/10/2023]
Abstract
Propylene gas is produced worldwide by steam cracking on million-metric-ton scale per year. It serves as a valuable starting material for π-bond functionalization but is rarely applied in transition metal-catalyzed allylic C-H functionalization for fine chemical synthesis. Herein, we report that a newly-developed cationic cyclopentadienyliron dicarbonyl complex allows for the conversion of propylene to its allylic C-C bond coupling products under catalytic conditions. This approach was also found applicable to the allylic functionalization of simple α-olefins with distinctive branched selectivity. Experimental and computational mechanistic studies supported the allylic deprotonation of the metal-coordinated alkene as the turnover-limiting step and led to insights into the multifaceted roles of the newly designed ligand in promoting allylic C-H functionalization with enhanced reactivity and stereoselectivity.
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Affiliation(s)
- Ruihan Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Yidong Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, China
| | - Ruiqi Ding
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Parker B Staub
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Christopher Z Zhao
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
| | - Yi-Ming Wang
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
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9
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Kharitonov VB, Muratov DV, Loginov DA. Cyclopentadienyl complexes of group 9 metals in the total synthesis of natural products. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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10
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Klein‐Heßling C, Sünkel K. Synthesis and Spectroscopic Characterization of the Four Complete Series [(C
5
X
n
H
5‐n
)Fe(CO)
2
R] (X= Cl, Br; R= Me, Ph; n= 1–5). Molecular and Crystal Structures of [(C
5
X
5
)Fe(CO)
2
R]. ChemistrySelect 2022. [DOI: 10.1002/slct.202202838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Christian Klein‐Heßling
- Department Chemistry Ludwig-Maximilians University Munich Butenandtstr. 5–13 81377 Munich Germany
| | - Karlheinz Sünkel
- Department Chemistry Ludwig-Maximilians University Munich Butenandtstr. 5–13 81377 Munich Germany
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11
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Ghosh S, Pyne P, Ghosh A, Hajra A. Ortho C-H Functionalizations of 2-Aryl-2H-Indazoles. CHEM REC 2022; 22:e202200158. [PMID: 35866505 DOI: 10.1002/tcr.202200158] [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: 06/05/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 11/10/2022]
Abstract
C-H Functionalization is ubiquitously considered as a powerful, efficient and handy tool for installing various functional groups in complex organic heterocycles in an easier and step-economic way. Similarly, indazole is endowed as a potent heterocycle and is eminent for its profound impact in biological, medicinal and industrial chemistry. In this scenario, C-H functionalization at the selective ortho position of 2-arylindazole in assistance of a metal catalyst is also becoming an appealing approach in synthetic organic chemistry. This review addressed the recent findings and developments on ortho C-H functionalization of 2-aryl-2H-indazazoles with literature coverage extending from 2018 to May 2022.
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Affiliation(s)
- Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Pranjal Pyne
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Anogh Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
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12
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Zhao L, Deng P, Gong X, Kang X, Cheng J. Regioselective C–H Alkylation of Aromatic Ethers with Alkenes by a Half-Sandwich Calcium Catalyst. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lanxiao Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Peng Deng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xun Gong
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiaohui Kang
- College of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Jianhua Cheng
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, No. 5625, Renmin Street, Changchun 130022, China
- University of Science and Technology of China, Hefei, Anhui 230026, China
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