1
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Li WD, Wang X, Ma HY, Jia JW, Xiao YY, Shi XY. Additive-Controlled Divergent Synthesis of Fluorenone-4-carboxylic Acids and Diphenic Anhydrides via Rhodium-Catalyzed Oxidative Dimeric Cyclization of Aromatic Acids. Org Lett 2024; 26:7607-7613. [PMID: 39231445 DOI: 10.1021/acs.orglett.4c02714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
A rhodium-catalyzed one-pot access to valuable polycyclic frameworks of fluorenone-4-carboxylic acids and diphenic anhydrides via the oxidative dimeric cyclization of aromatic acids has been developed. This transformation proceeded via carboxyl-assisted 2-fold C-H activation followed by intramolecular Friedel-Crafts or dehydration reactions. The silver salt additive plays a vital role in the chemoselectivity of the products. Diphenic anhydride 3l exhibits a maximum fluorescence quantum yield of up to 59%.
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Affiliation(s)
- Wan-Di Li
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Xue Wang
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Hong-Yu Ma
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Jing-Wen Jia
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Yu-Yao Xiao
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
| | - Xian-Ying Shi
- Key Laboratory of Syngas Conversion of Shaanxi Province, Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, P.R. China
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2
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Tucker N, Britt LH, Grover HK. Synthesis of Tanshinone IIA and Related Terpenes via a C-H Functionalization Strategy. Org Lett 2024; 26:7134-7138. [PMID: 39158460 DOI: 10.1021/acs.orglett.4c02438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
The total synthesis of tanshinone IIA and related bioactive diterpenes isolated from the Chinese plant Salvia miltiorrhiza was completed from a common tetralin building block. The synthetic route highlights a 3,4-disubstituted furan synthesis and various regioselective C-H functionalization reactions, including a Pd catalyzed iodination and an Ir catalyzed borylation, along with an intramolecular stanna-Brook type reaction to construct the ortho-quninone ring of the target molecule.
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Affiliation(s)
- Nathan Tucker
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Liam H Britt
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
| | - Huck K Grover
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland A1B 3X7, Canada
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3
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Ni F, Huang Y, Qiu L, Yang C. Synthetic progress of organic thermally activated delayed fluorescence emitters via C-H activation and functionalization. Chem Soc Rev 2024; 53:5904-5955. [PMID: 38717257 DOI: 10.1039/d3cs00871a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Thermally activated delayed fluorescence (TADF) emitters have become increasingly prominent due to their promising applications across various fields, prompting a continuous demand for developing reliable synthetic methods to access them. This review aims to highlight the progress made in the last decade in synthesizing organic TADF compounds through C-H bond activation and functionalization. The review begins with a brief introduction to the basic features and design principles of TADF emitters. It then provides an overview of the advantages and concise development of C-H bond transformations in constructing TADF emitters. Subsequently, it summarizes both transition-metal-catalyzed and non-transition-metal-promoted C-H bond transformations used for the synthesis of TADF emitters. Finally, the review gives an outlook on further challenges and potential directions in this field.
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Affiliation(s)
- Fan Ni
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Yipan Huang
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Longzhen Qiu
- National Engineering Lab of Special Display Technology, State Key Lab of Advanced Display Technology, Academy of Opto-Electronic Technology, Intelligent Interconnected Systems Laboratory of Anhui, Anhui Province Key Laboratory of Measuring Theory and Precision Instrument, School of Instrument Science and Optoelectronic Engineering, Hefei University of Technology, Hefei, Anhui 230009, P. R. China.
| | - Chuluo Yang
- Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen, Guangdong 518060, P. R. China.
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4
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Mondal S, Bera R, Chowdhury D, Dana S, Baidya M. Redox-Neutral Ruthenium(II)-Catalyzed Enol-Directed Arene C-H Alkylation with Maleimides. Org Lett 2023; 25:70-75. [PMID: 36579895 DOI: 10.1021/acs.orglett.2c03858] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An enol-assisted regioselective arene C-H alkylation with maleimides is developed under redox-neutral ruthenium(II) catalysis, offering a wide variety of valuable 3-aryl succinimides including amino acid embedded frameworks in good to excellent yields. The products were also aromatized to produce synthetically useful resorcinol-based biaryls. Mechanistic studies support an organometallic pathway with a reversible C-H metalation step for this reaction.
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Affiliation(s)
- Sudeshna Mondal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Ratnadeep Bera
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Deepan Chowdhury
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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5
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Wang Y, Han N, Li XL, Wang RZ, Xing LB. Novel Strategy of Constructing Artificial Light-Harvesting System with Two-Step Sequential Energy Transfer for Efficient Photocatalysis in Water. ACS APPLIED MATERIALS & INTERFACES 2022; 14:45734-45741. [PMID: 36166320 DOI: 10.1021/acsami.2c14168] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
An efficient artificial light-harvesting system with a two-step sequential energy transfer was fabricated in the aqueous solution based on the host-guest interactions between cyano-substituted p-phenylenevinylene derivative (PPTA) and a water-soluble pillar[5]arene (WP5). PPTA-WP5 complex could self-assemble into nanoparticles, and two fluorescent dyes eosin Y (EY) and Nile Red (NIR) are employed as acceptors to realize sequential energy transfer. The PPTA-WP5-EY-NIR system could achieve efficient two-step sequential energy transfer process from PPTA-WP5 to EY and then to NIR (67% for the first step and 66% for the second step). Moreover, to make full use of the harvested energy, the hydrophobic microenvironment in the assembled nanoparticles is used to promote the aerobic cross-dehydrogenative coupling (CDC) reaction in aqueous medium with 88% yield after 12 h of irradiation. To our knowledge, this is the first example of artificial LHS with two-step energy transfer used to catalyze the CDC reaction in aqueous medium. This work directly mimics the function of photosynthesis in nature of converting solar energy into chemical energy in aqueous solution.
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Affiliation(s)
- Ying Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Ning Han
- Department of Materials Engineering, KU Leuven, Leuven 3001, Belgium
| | - Xing-Long Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Rong-Zhou Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
| | - Ling-Bao Xing
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255000, P. R. China
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6
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Lu P, Zhuang W, Lu L, Liu A, Chen Y, Wu C, Zhang X, Huang Q. Chemodivergent Synthesis of Indeno[1,2- b]indoles and Isoindolo[2,1- a]indoles via Mn(III)-Mediated or Electrochemical Intramolecular Radical Cross-Dehydrogenative Coupling. J Org Chem 2022; 87:10967-10981. [PMID: 35901234 DOI: 10.1021/acs.joc.2c01238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Chemodivergent synthesis of indeno[1,2-b]indoles and isoindolo[2,1-a]indoles from the same starting materials involving radical cross-dehydrogenative couplings have been developed. Mn(OAc)3·2H2O selectively promoted an intramolecular radical C-H/C-H dehydrogenative coupling reaction to provide indeno[1,2-b]indoles, while an intramolecular radical C-H/N-H dehydrogenative coupling reaction could proceed via electrochemistry to deliver isoindolo[2,1-a]indoles. Plausible mechanisms of the chemodivergent reactions were proposed.
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Affiliation(s)
- Piao Lu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Weihui Zhuang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Leipeng Lu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Anyi Liu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Yixi Chen
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Chenmeng Wu
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Xiaofeng Zhang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
| | - Qiufeng Huang
- Fujian Key Laboratory of Polymer Materials, Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, PR China
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7
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Nandi S, Mondal S, Jana R. Chemo- and regioselective benzylic C(sp3)–H oxidation bridging the gap between hetero- and homogeneous copper catalysis. iScience 2022; 25:104341. [PMID: 35602936 PMCID: PMC9118691 DOI: 10.1016/j.isci.2022.104341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 04/09/2022] [Accepted: 04/26/2022] [Indexed: 11/25/2022] Open
Abstract
Selective C‒H functionalization in a pool of proximal C‒H bonds, predictably altering their innate reactivity is a daunting challenge. We disclose here, an expedient synthesis of privileged seven-membered lactones, dibenzo[c,e]oxepin-5(7H)-one through a highly chemoselective benzylic C(sp3)‒H activation. Remarkably, the formation of widely explored six-membered lactone via C(sp2)‒H activation is suppressed under the present conditions. The reaction proceeds smoothly on use of inexpensive metallic copper catalyst and di-tert-butyl peroxide (DTBP). Owing to the hazards of stoichiometric DTBP, further, we have developed a sustainable metallic copper/rose bengal dual catalytic system coupled with molecular oxygen replacing DTBP. A 1,5-aryl migration through Smiles rearrangement was realized from the corresponding diaryl ether substrates instead of expected eight-membered lactones. The present methodology is scalable, applied to the total synthesis of cytotoxic and neuroprotective natural product alterlactone. The catalyst is recyclable and the reaction can be performed in a copper bottle without any added catalyst. Catalytic strategy for chemo- and regioselective benzylic C–H activation Bulk copper catalysis merging with photocatalysis Reusable copper catalyst Reaction demonstrated in commercial copper bottle without external catalyst
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Affiliation(s)
- Shantanu Nandi
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
| | - Shuvam Mondal
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
| | - Ranjan Jana
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, West Bengal, India
- Corresponding author
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8
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Zhang L, Wang LL, Fang DC. DFT Case Study on the Comparison of Ruthenium-Catalyzed C-H Allylation, C-H Alkenylation, and Hydroarylation. ACS OMEGA 2022; 7:6133-6141. [PMID: 35224376 PMCID: PMC8867598 DOI: 10.1021/acsomega.1c06584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/26/2022] [Indexed: 06/14/2023]
Abstract
Density functional calculations at the B3LYP-D3+IDSCRF/TZP-DKH(-dfg) level of theory have been performed to understand the mechanism of ruthenium-catalyzed C-H allylation reported in the literature in depth. The plausible pathway consisted of four sequential processes, including C-H activation, migratory insertion, amide extrusion, and recovery of the catalyst, in which C-H activation was identified as the rate-determining step. The amide extrusion step could be promoted kinetically by trifluoroacetic acid since its mediation lowered the free-energy barrier from 32.1 to 12.2 kcal/mol. Additional calculations have been performed to explore other common pathways between arenes and alkenes, such as C-H alkenylation and hydroarylation. A comparison of the amide extrusion and β-H elimination steps established the following reactivity sequence of the leaving groups: protonated amide group > β-H group > unprotonated amide group. The suppression of hydroarylation was attributed to the sluggishness of the Ru-C protonation step as compared to the amide extrusion step. This study can unveil factors favoring the C-H allylation reaction.
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Affiliation(s)
- Lei Zhang
- School
of Science, Tianjin Chengjian University, Tianjin 300384, P. R. China
| | - Ling-Ling Wang
- School
of Science, Tianjin Chengjian University, Tianjin 300384, P. R. China
| | - De-Cai Fang
- College
of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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9
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Bakthadoss M, Reddy TT, Agarwal V, Sharada DS. Ester-directed orthogonal dual C-H activation and ortho aryl C-H alkenylation via distal weak coordination. Chem Commun (Camb) 2022; 58:1406-1409. [PMID: 34994762 DOI: 10.1039/d1cc06097j] [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
An unprecedented orthogonal cross-coupling between aromatic C(sp2) and aliphatic olefinic C(sp2) carbons of two same molecules via dual C-H bond activation in an intermolecular fashion has been developed using a distal ester-directing group. This new coupling reaction led to the synthesis of the highly functionalized 1,3-diaryl molecular architecture in very good yields and with high chemo- and regioselectivities. In addition, using ester as the distal directing group, ortho C-H olefination of α-methyl aryl acrylates and cinnamic esters with various alkenes has been achieved in very good yields and with a wide range of substrate scope.
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Affiliation(s)
| | | | - Vishal Agarwal
- Department of Chemistry, Pondicherry University, Pondicherry-605014, India.
| | - Duddu S Sharada
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Telangana-502285, India
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10
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Tong Z, Peng X, Tang Z, Yang W, Deng W, Yin SF, Kambe N, Qiu R. DTBP-mediated cross-dehydrogenative coupling of 3-aryl benzofuran-2(3 H)-ones with toluenes/phenols for all-carbon quaternary centers. RSC Adv 2022; 12:35215-35220. [DOI: 10.1039/d2ra06231c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
We have developed a transition-metal free protocol for efficient cross-dehydrogenative coupling of 3-aryl benzofuran-2(3H)-ones and toluenes/phenols using DTBP as an oxidant.
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Affiliation(s)
- Zhou Tong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Xinju Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zhi Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Weijun Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Wei Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Nobuaki Kambe
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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11
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Zeng Z, Goebel JF, Liu X, Gooßen LJ. 2,2′-Biaryldicarboxylate Synthesis via Electrocatalytic Dehydrogenative C–H/C–H Coupling of Benzoic Acids. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01127] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhongyi Zeng
- Fakultät Chemie und Biochemie, Ruhr Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Jonas F. Goebel
- Fakultät Chemie und Biochemie, Ruhr Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Xianming Liu
- Fakultät Chemie und Biochemie, Ruhr Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Lukas J. Gooßen
- Fakultät Chemie und Biochemie, Ruhr Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
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12
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Hu Z, Belitz F, Zhang G, Papp F, Gooßen LJ. Ru-Catalyzed ( E)-Specific ortho-C-H Alkenylation of Arenecarboxylic Acids by Coupling with Alkenyl Bromides. Org Lett 2021; 23:3541-3545. [PMID: 33885311 DOI: 10.1021/acs.orglett.1c00956] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In the presence of [p-cymene)RuCl2]2, (E)-configured alkenyl bromides couple with aromatic carboxylates to form ortho-vinylbenzoic acids. This C-H vinylation proceeds in high yields without any activating phosphine ligands and has an excellent functional group tolerance. Starting from commonly available (E/Z )-mixtures of alkenyl bromides, (E)-configured vinyl arenes or dienes are formed exclusively. Mechanistic studies show that this selectivity is achieved because the (E)-configured alkenyl bromides undergo a smooth coupling, whereas the (Z)-isomers are rapidly eliminated with the formation of alkynes.
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Affiliation(s)
- Zhiyong Hu
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Florian Belitz
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Guodong Zhang
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Florian Papp
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Lukas J Gooßen
- Evonik Chair of Organic Chemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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13
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Das J, Mal DK, Maji S, Maiti D. Recent Advances in External-Directing-Group-Free C–H Functionalization of Carboxylic Acids without Decarboxylation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00176] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jayabrata Das
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Dibya Kanti Mal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Suman Maji
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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14
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Dana S, Sureshbabu P, Giri CK, Baidya M. Ruthenium(II)‐Catalyzed C−H Activation/Annulation of Aromatic Hydroxamic Acid Esters with Enamides Leading to Aminal Motifs. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001632] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Suman Dana
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
| | - Popuri Sureshbabu
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
| | - Chandan Kumar Giri
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
| | - Mahiuddin Baidya
- Department of Chemistry Indian Institute of Technology Madras Chennai 600036 Tamil Nadu India
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15
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Kumar U, Sharma A, Kumar N, Pandey SK. Copper-catalyzed chemoselective oxidative o-aroylation of 2-acetylphenols, alkyl salicylates and 1,3-dicarbonyl compounds using styrene derivatives. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Copper-catalyzed one-pot synthesis of amide linked 1,2,3-triazoles bearing aryloxy skeletons. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152765] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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17
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Trouvé J, Gramage-Doria R. Beyond hydrogen bonding: recent trends of outer sphere interactions in transition metal catalysis. Chem Soc Rev 2021; 50:3565-3584. [DOI: 10.1039/d0cs01339k] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The implementation of interactions beyond hydrogen bonding in the 2nd coordination sphere of transition metal catalysts is rare. However, it has already shown great promise in last 5 years, providing new tools to control the activity and selectivity as here reviewed.
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18
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Huo Y, He Z, Wang C, Zhang L, Xuan Q, Wei S, Wang Y, Pan D, Dong B, Wei R, Naik N, Guo Z. The recent progress of synergistic supramolecular polymers: preparation, properties and applications. Chem Commun (Camb) 2021; 57:1413-1429. [DOI: 10.1039/d0cc07247h] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Interactions for forming supramolecular polymers were reviewed together with their unique properties and applications with detailed examples.
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19
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Mandal A, Bera R, Baidya M. Regioselective C-H Alkenylation and Unsymmetrical Bis-olefination of Heteroarene Carboxylic Acids with Ruthenium Catalysis in Water. J Org Chem 2021; 86:62-73. [PMID: 33251801 DOI: 10.1021/acs.joc.0c02215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient weak carboxylate-assisted oxidative cross-dehydrogenative C-H/C-H coupling (CDC) of heteroarenes with readily available olefins has been devised employing water as green solvent under ruthenium(II) catalysis. The reaction is operationally simple, accommodates a large variety of heteroaromatic carboxylic acids as well as olefins, and facilitates a diverse array of high-value olefin-tethered heteroarenes in high yields (up to 87%). The potential of this ortho-C-H bond activation strategy has also been exploited toward tunable synthesis of densely functionalized heteroarenes through challenging unsymmetrical bis-olefination process in a one-pot sequential fashion. Mechanistic investigation demonstrates a reversible ruthenation process and C-H metalation step might not be involved in the rate-determining step.
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Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Ratnadeep Bera
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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20
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Ibrahim HM, Behbehani H. Palladium-Catalyzed Q-Tube-Assisted Protocol for Synthesizing Diaza-dibenzo[ a, e]azulene and Diaza-benzo[ a]fluorene Derivatives via O 2 Acid-Promoted Cross-Dehydrogenative Coupling. J Org Chem 2020; 85:15368-15381. [PMID: 33147024 DOI: 10.1021/acs.joc.0c02186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An appropriate and efficient Q-tube-assisted palladium-catalyzed strategy for the synthesis of novel, unparalleled diaza-dibenzo[a,e]azulene and diaza-benzo[a]fluorene derivatives has been sophisticated, which includes oxygen and AcOH-induced oxidative C(sp3)-C(sp2) cross-dehydrogenative coupling reactions of 1-amino-2-imino-4-arylpyridine-3-carbonitriles with benzocyclic ketones such as benzosuberone, tetralone, thiochromone, and chromone, respectively. This Q-tube gas purging kit assisted-protocol features safe due to easy pressing and sealing, a wide substrate scope, easy workup and purifying phases, and the use of O2 as a benign oxidant, in addition to being scalable and having a high atom economy. The suggested mechanistic pathway includes a formal dehydrative step followed by palladium AcOH-induced CH(sp3)-CH(sp2) oxidative cross-coupling. In this study, X-ray crystallographic analysis has been used to authenticate the targeted products.
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Affiliation(s)
- Hamada Mohamed Ibrahim
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait.,Chemistry Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum 63514, Egypt
| | - Haider Behbehani
- Chemistry Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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21
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Dana S, Giri CK, Baidya M. Ruthenium(II)-catalyzed amide directed spiroannulation with naphthoquinones: access to spiro-isoindolinone frameworks. Chem Commun (Camb) 2020; 56:13048-13051. [PMID: 33001082 DOI: 10.1039/d0cc05438k] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild ruthenium(ii)-catalyzed spiroannulation between benzamides and naphthoquinones is developed for the succinct synthesis of biologically relevant spiro-isoindolinone scaffolds. A base promoted transannulation of spirocyclic products en route to valuable benzo[b]phenanthridinetriones in good yields has also been accomplished.
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Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
| | - Chandan Kumar Giri
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India.
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22
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Yu S, Lv N, Hong C, Liu Z, Zhang Y. Rh-Catalyzed Annulation of Benzoic Acids, Formaldehyde, and Malonates via ortho-Hydroarylation to Indanones. Org Lett 2020; 22:8354-8358. [PMID: 33157567 DOI: 10.1021/acs.orglett.0c02986] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A three-component reaction from readily available low-cost materials of benzoic acids, formaldehyde, and malonates for the preparation of indanones by rhodium catalysis is reported. The annulation is initiated by an ortho-hydroarylation of benzoic acids, and a Lewis acid is not required. The solvent has a significant influence to the reaction, and 2-substituted or nonsubstituted indanones are obtained by the change of solvent.
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Affiliation(s)
- Shuling Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Ningning Lv
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Chao Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhanxiang Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuhong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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23
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Zhang K, Khan R, Chen J, Zhang X, Gao Y, Zhou Y, Li K, Tian Y, Fan B. Directing-Group-Controlled Ring-Opening Addition and Hydroarylation of Oxa/azabenzonorbornadienes with Arenes via C–H Activation. Org Lett 2020; 22:3339-3344. [DOI: 10.1021/acs.orglett.0c00765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Keyang Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Ruhima Khan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Jingchao Chen
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Xuexin Zhang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Yang Gao
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Yongyun Zhou
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
- School of Chemistry and Environment, Institution Yunnan Minzu University, Yuehua Street, Kunming, 650500, China
| | - Kangkui Li
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Youxian Tian
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
| | - Baomin Fan
- Key Laboratory of Chemistry in Ethnic Medicinal Resources, Yunnan Minzu University, Kunming 650500, China
- School of Chemistry and Environment, Institution Yunnan Minzu University, Yuehua Street, Kunming, 650500, China
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24
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Dana S, Dey P, Patil SA, Baidya M. Enhancing Ru(II)-Catalysis with Visible-Light-Mediated Dye-Sensitized TiO 2 Photocatalysis for Oxidative C-H Olefination of Arene Carboxylic Acids at Room Temperature. Chem Asian J 2020; 15:564-567. [PMID: 32003942 DOI: 10.1002/asia.201901718] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/08/2020] [Indexed: 11/12/2022]
Abstract
Erythrosine B sensitized TiO2 photocatalysis has been combined with Ru(II)-catalysis to accomplish an oxidative olefination/annulation of benzoic acids with activated olefins under mild conditions that tolerates useful functionalities, such as halides, free hydroxy, acetamido, etc. The morphology of the photocatalyst is unaffected during the reaction and it can be reused. Mechanistic studies favor the involvement of a photo-induced single electron transfer process.
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Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Purusattam Dey
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Siddappa A Patil
- Centre for Nano and Material Sciences, Jain University, Ramanagara District, 562112, Bangalore Rural Karnataka, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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25
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Paniak TJ, Kozlowski MC. Aerobic Catalyzed Oxidative Cross-Coupling of N, N-Disubstituted Anilines and Aminonaphthalenes with Phenols and Naphthols. Org Lett 2020; 22:1765-1770. [PMID: 32049541 DOI: 10.1021/acs.orglett.0c00046] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The cross-coupling of N,N-dialkyl aniline and aminonaphthalenes with phenols and naphthols using a Cr-salen catalyst under aerobic conditions was developed. Notably, air serves as an effective oxidant affording products in high selectivity. Initial mechanistic studies suggest an outer-sphere oxidation of the aniline/aminonaphthalene partner, followed by nucleophilic attack of the phenol/naphthol. Single products were observed in most cases, whereas mixtures of C-C and C-O coupled products arose from reactions involving aminonapthalene and sterically unencumbered phenols.
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Affiliation(s)
- Thomas J Paniak
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Marisa C Kozlowski
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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26
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Zhou DG, Wang P. DFT investigation on the mechanisms of Csp 3–H functionalization of glycine derivatives induced by radical cation salt. NEW J CHEM 2020. [DOI: 10.1039/c9nj03946e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The mechanism of Csp3–H functionalization between ethyl 2-(p-tolylamino)acetate and phenylethylene initiated by tris(4-bromophenyl)aminium hexachloroantimonate was elaborated based on DFT calculations.
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Affiliation(s)
- Da-Gang Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province Institute of Synthesis and Application of Functional Materials
- College of Chemistry and Chemical Engineering
- China West Normal University
- Shida Road 1#
- Nanchong 637002
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province Institute of Synthesis and Application of Functional Materials
- College of Chemistry and Chemical Engineering
- China West Normal University
- Shida Road 1#
- Nanchong 637002
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27
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Tezuka N, Hirano K, Uchiyama M. A Direct, Chemo-, and Regioselective Cross-Coupling Reaction of Arenes via Sequential Directed ortho Cuprations and Oxidation. Org Lett 2019; 21:9536-9540. [PMID: 31738063 DOI: 10.1021/acs.orglett.9b03719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Direct cross-coupling of Csp2-H/Csp2-H bonds of two arenes was achieved in 30-76% yield via sequential directed ortho cuprations (DoCu) with the cuprate base (TMP)2Cu(CN)Li2 (1, TMP = 2,2,6,6-tetramethylpiperidido), followed by oxidation. This methodology offers easy access to unsymmetric biaryls from arenes with a variety of directed metalation groups (DMGs) and ancillary functional groups, taking advantage of the highly chemoselective action of 1.
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Affiliation(s)
- Noriyuki Tezuka
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan.,Cluster of Pioneering Research (CPR), Advanced Elements Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako-shi , Saitama 351-0198 , Japan
| | - Keiichi Hirano
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan.,Cluster of Pioneering Research (CPR), Advanced Elements Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako-shi , Saitama 351-0198 , Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences , The University of Tokyo , 7-3-1 Hongo , Bunkyo-ku , Tokyo 113-0033 , Japan.,Cluster of Pioneering Research (CPR), Advanced Elements Chemistry Laboratory , RIKEN , 2-1 Hirosawa , Wako-shi , Saitama 351-0198 , Japan.,Research Initiative for Supra-Materials (RISM) , Shinshu University , 3-15-1 Tokida , Ueda , Nagano 386-8567 , Japan
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28
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Alharis RA, McMullin CL, Davies DL, Singh K, Macgregor SA. Understanding electronic effects on carboxylate-assisted C-H activation at ruthenium: the importance of kinetic and thermodynamic control. Faraday Discuss 2019; 220:386-403. [PMID: 31528900 DOI: 10.1039/c9fd00063a] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Meta- and para-substituted 1-phenylpyrazoles (R-phpyz-H) react with [RuCl2(p-cymene)]2 in the presence of NaOAc to form cyclometallated complexes [M(R-phpyz)Cl(p-cymene)] (where R = NMe2, OMe, Me, H, F, CF3 and NO2). Experimental and DFT studies indicate that product formation can be reversible or irreversible depending on the substituents and the reaction conditions. Competition experiments show that the kinetic selectivity favours electron-donating substituents and correlate well with the Hammett parameter, giving a negative slope (ρ = -2.4) that is consistent with a cationic transition state. However, surprisingly, the thermodynamic selectivity is completely opposite, with substrates featuring electron-withdrawing groups being favoured. These trends are reproduced with DFT calculations that locate a rate-limiting transition state dominated by Ru-O bond dissociation and minimal C-H bond elongation. Detailed computational analysis of these transition states shows that C-H activation proceeds by an AMLA/CMD mechanism through a synergic combination of a C-H→Ru agostic interaction and C-HO H-bonding. NBO calculations also highlight a syndetic bonding term, and the relative weights of these three components vary in a complementary fashion depending on the nature of the substituent. With meta-substituted ligands H/D exchange experiments signal kinetically accessible ortho-C-H activation when R = NMe2, OMe and Me. This is also modelled computationally and the calculations highlight the kinetic relevance of the HOAc/Cl exchange that occurs post C-H bond cleavage, in particular with the bulkier NMe2 and Me substituents. Our study highlights that the experimental substituent effects are dependent on the reaction conditions and so using such studies to assign the mechanism of C-H activation in either stoichiometric or catalytic reactions may be misleading.
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Affiliation(s)
- Raed A Alharis
- Department of Chemistry, University of Leicester, Leicester, LE1 7RH, UK.
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29
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Sun R, Yang X, Li Q, Xu K, Tang J, Zheng X, Yuan M, Fu H, Li R, Chen H. Divergent Synthesis of Isoquinolone and Isocoumarin Derivatives by the Annulation of Benzoic Acid with N-Vinyl Amide. Org Lett 2019; 21:9425-9429. [DOI: 10.1021/acs.orglett.9b03638] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rui Sun
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiao Yang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Qianggen Li
- College of Chemistry and Material Science, Sichuan Normal University, Chengdu, 610068, P. R. China
| | - Ke Xu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Juan Tang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xueli Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Maolin Yuan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Haiyan Fu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ruixiang Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Hua Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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30
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Li S, Wang H, Weng Y, Li G. Carboxy Group as a Remote and Selective Chelating Group for C−H Activation of Arenes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910691] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Shangda Li
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
| | - Hang Wang
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yunxiang Weng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of EducationDepartment of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Gang Li
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
- University of Chinese Academy of Sciences Beijing 100049 China
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31
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Li S, Wang H, Weng Y, Li G. Carboxy Group as a Remote and Selective Chelating Group for C−H Activation of Arenes. Angew Chem Int Ed Engl 2019; 58:18502-18507. [PMID: 31595622 DOI: 10.1002/anie.201910691] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 09/16/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Shangda Li
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
| | - Hang Wang
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Yunxiang Weng
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology of Ministry of EducationDepartment of ChemistryTsinghua University Beijing 100084 P. R. China
| | - Gang Li
- State Key Laboratory of Structural ChemistryCenter for Excellence in Molecular SynthesisFujian Institute of Research on the Structure of MatterChinese Academy of Sciences (CAS) 155 West Yang-Qiao Road Fuzhou Fujian 350002 China
- University of Chinese Academy of Sciences Beijing 100049 China
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32
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Rogge T, Ackermann L. Aren‐freie Ruthenium(II/IV)‐katalysierte gegabelte Arylierungen für oxidative C‐H/C‐H‐Funktionalisierungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909457] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Torben Rogge
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
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33
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Rogge T, Ackermann L. Arene-Free Ruthenium(II/IV)-Catalyzed Bifurcated Arylation for Oxidative C-H/C-H Functionalizations. Angew Chem Int Ed Engl 2019; 58:15640-15645. [PMID: 31476098 DOI: 10.1002/anie.201909457] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 08/20/2019] [Indexed: 02/02/2023]
Abstract
Experimental and computational studies provide detailed insight into the selectivity- and reactivity-controlling factors in bifurcated ruthenium-catalyzed direct C-H arylations and dehydrogenative C-H/C-H functionalizations. Thorough investigations revealed the importance of arene-ligand-free complexes for the formation of biscyclometalated intermediates within a ruthenium(II/IV/II) mechanistic manifold.
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Affiliation(s)
- Torben Rogge
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
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34
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Behbehani H, Ibrahim HM. Synthetic Strategy for Pyrazolo[1,5- a]pyridine and Pyrido[1,2- b]indazole Derivatives through AcOH and O 2-Promoted Cross-dehydrogenative Coupling Reactions between 1,3-Dicarbonyl Compounds and N-Amino-2-iminopyridines. ACS OMEGA 2019; 4:15289-15303. [PMID: 31552376 PMCID: PMC6751734 DOI: 10.1021/acsomega.9b02430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 08/21/2019] [Indexed: 05/12/2023]
Abstract
An efficient method has been developed for the synthesis of uniquely substituted pyrazolo[1,5-a]pyridine and pyrido[1,2-b]indazole derivatives, which involves acetic acid and molecular oxygen promoted cross-dehydrogenative coupling reactions of respective β-ketoesters and β-diketones (like ethyl acetoacetate, ethyl benzoylacetate, methyl propionylacetate, acetylacetone, dimedone, 1,3-cyclohexanedione, and 1,3-cyclopentanedione) with N-amino-2-iminopyridines. The proposed tentative mechanism involves formal acetic acid-promoted oxidative C(sp3)-C(sp2) dehydrogenative coupling followed by dehydrative cyclization under a catalyst-free condition within high atom economy processes.
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Affiliation(s)
- Haider Behbehani
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
| | - Hamada Mohamed Ibrahim
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
- Chemistry
Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum, Egypt
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35
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Liu C, Fang Y, Wang SY, Ji SJ. RhCl3·3H2O-Catalyzed Ligand-Enabled Highly Regioselective Thiolation of Acrylic Acids. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02982] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Can Liu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Yi Fang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
- Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, People’s Republic of China
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36
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Ferlin F, Yetra SR, Warratz S, Vaccaro L, Ackermann L. Reusable Pd@PEG Catalyst for Aerobic Dehydrogenative C-H/C-H Arylations of 1,2,3-Triazoles. Chemistry 2019; 25:11427-11431. [PMID: 31306515 DOI: 10.1002/chem.201902901] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 07/11/2019] [Indexed: 01/22/2023]
Abstract
Dehydrogenative C-H arylations of 1,2,3-triazoles were accomplished with the aid of a reusable palladium catalyst in PEG. The widely applicable oxidative palladium catalysis enabled the synthesis of fully decorated 1,2,3-triazoles with a broad functional-group tolerance and ample substrate scope. The sustainability of the aerobic C-H arylation was reflected by the use of PEG as green reaction medium and demonstrated by recycling studies of the catalyst and the reaction medium.
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Affiliation(s)
- Francesco Ferlin
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany.,Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Santhivardhana Reddy Yetra
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
| | - Luigi Vaccaro
- Laboratory of Green S.O.C., Dipartimento di Chimica, Biologia e Biotecnologie, Università degli Studi di Perugia, Via Elce di Sotto 8, 06123, Perugia, Italy
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077, Göttingen, Germany
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37
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Hu Z, Hu XQ, Zhang G, Gooßen LJ. Ring-Opening Ortho-C–H Allylation of Benzoic Acids with Vinylcyclopropanes: Merging Catalytic C–H and C–C Activation Concepts. Org Lett 2019; 21:6770-6773. [DOI: 10.1021/acs.orglett.9b02393] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhiyong Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Xiao-Qiang Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Guodong Zhang
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Lukas J. Gooßen
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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38
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Ibrahim HM, Behbehani H. Sustainable Synthetic Approach for (Pyrazol-4-ylidene)pyridines By Metal Catalyst-Free Aerobic C(sp 2)-C(sp 3) Coupling Reactions between 1-Amino-2-imino-pyridines and 1-Aryl-5-pyrazolones. ACS OMEGA 2019; 4:11701-11711. [PMID: 31460276 PMCID: PMC6682090 DOI: 10.1021/acsomega.9b01650] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/21/2019] [Indexed: 05/26/2023]
Abstract
A novel, metal catalyst-free, and efficient method has been developed for the synthesis of (pyrazol-4-ylidene)pyridine derivatives. The process involves dehydrogenative coupling of 1-amino-2-imino-pyridines with 1-aryl-5-pyrazolone derivatives utilizing O2 as the sole oxidant. The new method benefits from a high atom economy, efficiency, and substrate scope, as well as the simplicity of reaction and product purification procedures.
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Affiliation(s)
- Hamada Mohamed Ibrahim
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
- Chemistry
Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum, Egypt
| | - Haider Behbehani
- Chemistry
Department, Faculty of Science, Kuwait University, P.O. Box 5969, Safat 13060, Kuwait
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39
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Zhang G, Hu Z, Belitz F, Ou Y, Pirkl N, Gooßen LJ. Rhodium‐katalysierte Anellierung von Benzoesäuren mit α,β‐ungesättigten Ketonen durch C‐H‐, CO‐OH‐ und C‐C‐ Bindungsspaltung. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901309] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Guodong Zhang
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Zhiyong Hu
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Florian Belitz
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Yang Ou
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Nico Pirkl
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
| | - Lukas J. Gooßen
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstraße 150 44801 Bochum Deutschland
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40
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Zhang G, Hu Z, Belitz F, Ou Y, Pirkl N, Gooßen LJ. Rhodium‐Catalyzed Annelation of Benzoic Acids with α,β‐Unsaturated Ketones with Cleavage of C−H, CO−OH, and C−C Bonds. Angew Chem Int Ed Engl 2019; 58:6435-6439. [DOI: 10.1002/anie.201901309] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Indexed: 01/11/2023]
Affiliation(s)
- Guodong Zhang
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Zhiyong Hu
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Florian Belitz
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Yang Ou
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Nico Pirkl
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
| | - Lukas J. Gooßen
- Fakultät für Chemie und BiochemieRuhr-Universität Bochum Universitätsstr. 150 44801 Bochum Germany
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41
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Zhang L, Wang Y, Shi Y, Wu Y, Lan J, Ma W, You J. Highly Regio- and Chemoselective Oxidative C–H/C–H Cross-Couplings of Anilines and Phenols Enabled by a Co-Oxidant-Free Rh(I)/Zn(NTf2)2/Air Catalytic System. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00925] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Luoqiang Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Yanbing Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Yang Shi
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Yimin Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Weixin Ma
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
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42
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Shi Y, Liu J, Yang Y, You J. General rhodium-catalyzed oxidative cross-coupling reactions between anilines: synthesis of unsymmetrical 2,2′-diaminobiaryls. Chem Commun (Camb) 2019; 55:5475-5478. [DOI: 10.1039/c9cc01733j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Described herein is a dual chelation-assisted RhCl3-catalyzed oxidative C–H/C–H cross-coupling reaction of aniline derivatives, in which the chemo- and regioselective cross-coupling between electronically similar substrates is achieved.
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Affiliation(s)
- Yang Shi
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- P. R. China
| | - Jiahui Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- P. R. China
| | - Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University
- Chengdu 610064
- P. R. China
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