1
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Zhang Y, Matler A, Krebs J, Krummenacher I, Ye Q, Braunschweig H, Marder TB, Ji L. Emission-Tunable B←N Lewis Pair-Functionalized Naphthalenes. Chemistry 2025; 31:e202403973. [PMID: 39628111 DOI: 10.1002/chem.202403973] [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: 10/27/2024] [Indexed: 12/13/2024]
Abstract
Herein, we simultaneously synthesized three different double B←N Lewis pair-functionalized naphthalenes including the asymmetric BNNY and BNNO and the mirror-symmetric BNNR, via a one-pot method. The annulation modes of the B←N Lewis pairs and the substituents on the boron atoms efficiently tune the molecular frontier orbitals and emission colors. α-Position fusion leads to a significant enhancement of the HOMO energy level and a decrease in the HOMO-LUMO gap, while the electron-withdrawing groups attached to the boron atom make the LUMO energy level more stable. In particular, the LUMO energy level of BNNO is as low as -3.12 eV. BNNY, BNNO, and BNNR emit cyan, green, and red fluorescence at 509, 534, and 620 nm, respectively, with fluorescence quantum yields of 24 %, 49 %, and 30 %, respectively.
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Affiliation(s)
- Yufeng Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University, Xi'an, 710072, China
| | - Alexander Matler
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Johannes Krebs
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ivo Krummenacher
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Qing Ye
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Holger Braunschweig
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Todd B Marder
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Lei Ji
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University, Xi'an, 710072, China
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2
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Zhu T, Cui X, Ma W, Qi X, Wei H. Synthesis of naphthalene derivatives via nitrogen-to-carbon transmutation of isoquinolines. SCIENCE ADVANCES 2025; 11:eads5928. [PMID: 39879292 PMCID: PMC11777194 DOI: 10.1126/sciadv.ads5928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2024] [Accepted: 12/30/2024] [Indexed: 01/31/2025]
Abstract
Heteroarene skeletal editing is gaining popularity in synthetic chemistry. Transmuting single atoms generates molecules that have distinctly varied properties, thereby fostering potent molecular exchanges that can be extensively used to synthesize functional molecules. Herein, we present a convenient protocol for nitrogen-carbon single-atom transmutations in isoquinolines, which is inspired by the Wittig reaction and enables easy access to substituted naphthalene derivatives. The reaction uses an inexpensive and commercially available phosphonium ylide as the carbon source to furnish a wide range of substituted naphthalenes. The key to the success of this transformation is the formation of a triene intermediate through ring opening, which undergoes 6π-electrocyclization and elimination processes to afford the naphthalene product. Furthermore, this strategy enables the facile synthesis of 13C-labeled naphthalenes using 13CH3PPh3I as a commercial 13C source and facilitates modifying the directing group for C─H functionalization.
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Affiliation(s)
- Tongtong Zhu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Xuhui Cui
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Wenjun Ma
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
| | - Xiujuan Qi
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi’an 710069, China
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3
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Huang MG, Fu YLT, Li JW, Liu YJ. Ruthenium-catalyzed three-component tandem remote C-H functionalization of naphthalenes: modular and concise synthesis of multifunctional naphthalenes. Chem Sci 2025; 16:1957-1965. [PMID: 39759927 PMCID: PMC11694486 DOI: 10.1039/d4sc06846g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2024] [Accepted: 12/10/2024] [Indexed: 01/07/2025] Open
Abstract
The prevalence of naphthalene compounds in biologically active natural products, organic ligands and approved drugs has motivated investigators to develop efficient strategies for their selective synthesis. C-H functionalization of naphthalene has been frequently deployed, but mainly involves two-component reactions, while multiple-component C-H functionalization for the synthesis of naphthalene compounds has thus far proven elusive. Herein, we disclose a versatile three-component protocol for the modular synthesis of multifunctional naphthalenes from readily available simple naphthalenes, olefins and alkyl bromides via P(iii)-assisted ruthenium-catalyzed remote C-H functionalization. This protocol not only tolerates various functional groups, but can be applied to many natural product and drug derivatives, and can involve a three-component reaction with two different bioactive molecules. Mechanism studies indicated that the utilization of tertiary phosphines as auxiliary groups is the key to achieving the three-component free-radical reaction.
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Affiliation(s)
- Mao-Gui Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 P. R. China
| | - Yue-Liu-Ting Fu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 P. R. China
| | - Jia-Wei Li
- Institute of Medicinal Development and Application for Aquatic Disease Control, Zhoukou Key Laboratory of Small Molecule Drug Development and Application, School of Chemistry and Chemical Engineering, Zhoukou Normal University Zhoukou 466001 P. R. China
| | - Yue-Jin Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University Wuhan 430062 P. R. China
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4
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Yen KW, Chein CC, Wung SH, Shen LC, Wu YK. Palladium-Catalyzed Oxidative Cyclization of O-Aryl Cyclic Vinylogous Esters: Synthesis of Benzofuran-Fused Cyclohexenones. J Org Chem 2024; 89:18679-18683. [PMID: 39610223 DOI: 10.1021/acs.joc.4c02167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2024]
Abstract
This study presents a method for synthesizing functionalized hydrodibenzofuran derivatives. Using palladium catalysis, O-aryl cyclic vinylogous esters undergo dehydrogenative intramolecular arylation at the vinylic carbon. Preliminary kinetic isotope effect studies suggest that the C(aryl)-H bond cleavage may be the rate-determining step.
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Affiliation(s)
- Ko-Wang Yen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Chia-Chen Chein
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Shih-Hsun Wung
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Li-Ching Shen
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
| | - Yen-Ku Wu
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan
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5
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Bak JM, Song M, Shin I, Lim HN. A deconstruction-reconstruction strategy to access 1-naphthol derivatives: application to the synthesis of aristolactam scaffolds. Org Biomol Chem 2023; 21:8936-8941. [PMID: 37916683 DOI: 10.1039/d3ob01603j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A deconstruction-reconstruction strategy for the synthesis of multisubstituted polycyclic aromatic hydrocarbons (PAHs) is delineated herein. The deconstruction step enables the synthesis of o-cyanomethylaroyl fluorides that are bifunctional substrates holding both a pro-nucleophile and an electrophile. The construction step involves a formal [4 + 2] benzannulation using o-cyanomethylaroyl fluorides and active methylenes. The utility of this synthetic method is also demonstrated by the synthesis of a tetracyclic aristolactam derivative.
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Affiliation(s)
- Jeong Min Bak
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
| | - Moonyeong Song
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Inji Shin
- Department of Fine Chemistry, Seoul National University of Science and Technology, 232 Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea
| | - Hee Nam Lim
- Department of Chemistry, Yeungnam University, 280 Daehak-Ro, Gyeongsan, Gyeongbuk, 38541, Republic of Korea.
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6
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Hirako N, Yasui T, Yamamoto Y. Rh(iii)-catalyzed highly site- and regio-selective alkenyl C-H activation/annulation of 4-amino-2-quinolones with alkynes via reversible alkyne insertion. Chem Sci 2023; 14:10971-10978. [PMID: 37829027 PMCID: PMC10566469 DOI: 10.1039/d3sc03987k] [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: 08/01/2023] [Accepted: 09/12/2023] [Indexed: 10/14/2023] Open
Abstract
3,4-Fused 2-quinolone frameworks are important structural motifs found in natural products and biologically active compounds. Intermolecular alkenyl C-H activation/annulation of 4-amino-2-quinolone substrates with alkynes is one of the most efficient methods for accessing such structural motifs. However, this is a formidable challenge because 4-amino-2-quinolones have two cleavable C-H bonds: an alkenyl C-H bond at the C3-position and an aromatic C-H bond at the C5-position. Herein, we report the Rh(iii)-catalyzed highly site-selective alkenyl C-H functionalization of 4-amino-2-quinolones to afford 3,4-fused 2-quinolones. This method has a wide substrate scope, including unsymmetrical internal alkynes, with complete regioselectivity. Several control experiments using an isolated key intermediate analog suggested that the annulation reaction proceeds via reversible alkyne insertion involving a binuclear Rh complex although alkyne insertion is generally recognized as an irreversible process due to the high activation barrier of the reverse process.
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Affiliation(s)
- Naohiro Hirako
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Takeshi Yasui
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University Furo-cho Chikusa Nagoya 464-8603 Japan
| | - Yoshihiko Yamamoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University Furo-cho Chikusa Nagoya 464-8603 Japan
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7
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Chung E, Kim S, Rakshit A, Singh P, Park J, Jeong T, Kim IS. Rh(III)-Catalyzed C8-Spiroannulation of 1-Aminonaphthalenes with Maleimides. J Org Chem 2023; 88:11227-11239. [PMID: 37462908 DOI: 10.1021/acs.joc.3c01258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
The rhodium(III)-catalyzed C8-spiroannulation of 1-aminonaphthalenes with maleimides is described herein. Initially formed C8-alkenylated 1-aminonaphthalenes can intercept nucleophilic 1-amino groups through the intramolecular aza-Michael reaction, resulting in the formation of spirofused tetracyclic frameworks. This protocol displayed a wide substrate scope and a broad functional group compatibility. The synthetic utility of this process is demonstrated by the gram-scale synthesis, late-stage modification, and synthetic transformations.
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Affiliation(s)
- Eunjae Chung
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Suho Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Amitava Rakshit
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Pargat Singh
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Jaewook Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Taejoo Jeong
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - In Su Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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8
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Docherty JH, Lister TM, Mcarthur G, Findlay MT, Domingo-Legarda P, Kenyon J, Choudhary S, Larrosa I. Transition-Metal-Catalyzed C-H Bond Activation for the Formation of C-C Bonds in Complex Molecules. Chem Rev 2023. [PMID: 37163671 DOI: 10.1021/acs.chemrev.2c00888] [Citation(s) in RCA: 135] [Impact Index Per Article: 67.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Site-predictable and chemoselective C-H bond functionalization reactions offer synthetically powerful strategies for the step-economic diversification of both feedstock and fine chemicals. Many transition-metal-catalyzed methods have emerged for the selective activation and functionalization of C-H bonds. However, challenges of regio- and chemoselectivity have emerged with application to highly complex molecules bearing significant functional group density and diversity. As molecular complexity increases within molecular structures the risks of catalyst intolerance and limited applicability grow with the number of functional groups and potentially Lewis basic heteroatoms. Given the abundance of C-H bonds within highly complex and already diversified molecules such as pharmaceuticals, natural products, and materials, design and selection of reaction conditions and tolerant catalysts has proved critical for successful direct functionalization. As such, innovations within transition-metal-catalyzed C-H bond functionalization for the direct formation of carbon-carbon bonds have been discovered and developed to overcome these challenges and limitations. This review highlights progress made for the direct metal-catalyzed C-C bond forming reactions including alkylation, methylation, arylation, and olefination of C-H bonds within complex targets.
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Affiliation(s)
- Jamie H Docherty
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Thomas M Lister
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Gillian Mcarthur
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Michael T Findlay
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Pablo Domingo-Legarda
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Jacob Kenyon
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Shweta Choudhary
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Igor Larrosa
- School of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
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9
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Liu H, Chi W, Dong L. Ruthenium(II)-Catalyzed Sterically Hindered C-H Acyloxylation to Synthesize Biaryl Isoquinoline Derivatives via Peresters. J Org Chem 2023. [PMID: 36812452 DOI: 10.1021/acs.joc.2c02938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A novel C-H acyloxylation method of 1-(1-naphthalen-1-yl)isoquinoline derivatives with peresters in the presence of [Ru(p-cymene)Cl2]2 has been developed. The combination of ruthenium(II), AgBF4, CoI2, and 2,2,6,6-tetramethyl-1-piperidinyloxy is found to be an effective catalytic system to provide various biaryl compounds in satisfactory yields within minutes. Notably, steric hindrance is a very important determinant of the reaction.
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Affiliation(s)
- Hao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Wei Chi
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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10
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Silver(I)-Catalyzed C4-H Amination of 1-Naphthylamine Derivatives with Azodicarboxylates at Room Temperature. Catalysts 2022. [DOI: 10.3390/catal12091006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A highly facile and efficient protocol for silver(I)-catalyzed C4–H amination of 1-naphthylamine derivatives with readily available azodicarboxylates utilizing picolinamide as a bidentate directing group is reported, providing an alternative strategy for the synthesis of 4-aminated 1-naphthylamine derivatives. The reaction proceeded smoothly in acetone at room temperature undergoing a self-redox process under the base and external oxidant-free conditions, affording the desired products with good to excellent yields.
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11
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Sadowski B, Yuan B, Lin Z, Ackermann L. Rhodaelectro-Catalyzed peri-Selective Direct Alkenylations with Weak O-Coordination Enabled by the Hydrogen Evolution Reaction (HER). Angew Chem Int Ed Engl 2022; 61:e202117188. [PMID: 35179817 PMCID: PMC9311442 DOI: 10.1002/anie.202117188] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Indexed: 12/12/2022]
Abstract
Direct C-H functionalizations by electrocatalysis is dominated by strongly coordinating N(sp2 )-directing groups. In sharp contrast, direct electrocatalytic transformations of weakly-coordinating phenols remain underdeveloped. Herein, electrooxidative peri C-H alkenylations of challenging 1-naphthols were achieved by versatile rhodium(III) catalysis via user-friendly constant current electrolysis. The rhodaelectrocatalysis employed readily-available alkenes and a protic reaction medium and features ample scope, good functional group tolerance and high site- and stereoselectivity. The strategy was successfully applied to high-value, nitrogen-containing heterocycles, thereby providing direct access to uncommon heterocyclic motifs based on the dihydropyranoquinoline skeleton.
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Affiliation(s)
- Bartłomiej Sadowski
- Institut für Organische und Biomolekulare Chemie and Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Binbin Yuan
- Institut für Organische und Biomolekulare Chemie and Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie and Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Woehler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammannstraße 237077GöttingenGermany
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12
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Fu Y, Chen CH, Huang MG, Tao JY, Peng X, Xu HB, Liu YJ, Zeng MH. Remote C5-Selective Functionalization of Naphthalene Enabled by P–Ru–C Bond-Directed δ-Activation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yueliuting Fu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Cui-Hong Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Mao-Gui Huang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Jun-Yang Tao
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Xu Peng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Hai-Bing Xu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Yue-Jin Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
| | - Ming-Hua Zeng
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Ministry of Science and Technology of China, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin 541004, China
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13
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Ibrahim M, Tashkandi N, Hadjichristidis N, Alkayal NS. Synthesis of Naphthalene-Based Polyaminal-Linked Porous Polymers for Highly Effective Uptake of CO 2 and Heavy Metals. Polymers (Basel) 2022; 14:1136. [PMID: 35335467 PMCID: PMC8952010 DOI: 10.3390/polym14061136] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/02/2022] [Accepted: 03/08/2022] [Indexed: 11/22/2022] Open
Abstract
Studying the effect of functional groups on the porosity structure and adsorption efficiency of polymer materials is becoming increasingly interesting. In this work, a novel porous polyaminal-linked polymer, based on naphthalene and melamine (PAN-NA) building blocks, was successfully synthesized by a one-pot polycondensation method, and used as an adsorbent for both CO2 and heavy metals. Fourier transform infrared spectroscopy, solid-state 13 C NMR, powder X-ray diffraction, and thermogravimetry were used to characterize the prepared polymer. The porous material structure was established by field-emission scanning electron microscope and N2 adsorption-desorption methods at 77 K. The polymer exhibited excellent uptake of CO2, 133 mg/g at 273 K and 1 bar. In addition, the adsorption behavior of PAN-NA for different metal cations, including Pb(II), Cr(III), Cu(II), Cd(II), Ni(II), and Ba(II), was investigated; a significant adsorption selectivity toward the Pb(II) cation was detected. The influence of pH, adsorbent dose, initial concentrations, and contact time was also assessed. Our results prove that the introduction of naphthalene in the polymer network improves the porosity and, thus, CO2 adsorption, as well as the adsorption of heavy metals.
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Affiliation(s)
- Manal Ibrahim
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
| | - Nada Tashkandi
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
| | - Nikos Hadjichristidis
- Physical Sciences and Engineering Division, Polymer Synthesis Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955, Saudi Arabia;
| | - Nazeeha S. Alkayal
- Chemistry Department, Faculty of Science, King Abdulaziz University, BOX 80203, Jeddah 21589, Saudi Arabia; (M.I.); (N.T.)
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14
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Mao Y, Jiang J, Yuan D, Chen X, Wang Y, Hu L, Zhang Y. Overcoming peri- and ortho-selectivity in C-H methylation of 1-naphthaldehydes by a tunable transient ligand strategy. Chem Sci 2022; 13:2900-2908. [PMID: 35382469 PMCID: PMC8906006 DOI: 10.1039/d1sc05899a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023] Open
Abstract
Methyl groups widely exist in bioactive molecules, and site-specific methylation has become a valuable strategy for their structural functionalization. Aiming to introduce this smallest alkyl handle, a highly regioselective peri- and ortho-C-H methylation of 1-naphthaldehyde by using a transient ligand strategy has been developed. A series of methyl-substituted naphthalene frameworks have been prepared in moderate to excellent yields. Mechanistic studies demonstrate that peri-methylation is controlled by the higher electronic density of the peri-position of 1-naphthaldehyde as well as the formation of intermediary 5,6-fused bicyclic palladacycles, whereas experimental studies and theoretical calculations inferred that a 5-membered iridacycle at the ortho-position of 1-naphthaldehyde leads to energetically favorable ortho-methylation via an interconversion between the peri-iridacycle and ortho-iridacycle. Importantly, to demonstrate the synthetic utility of this method, we show that this strategy can serve as a platform for the synthesis of multi-substituted naphthalene-based bioactive molecules and natural products.
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Affiliation(s)
- Yujian Mao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Jing Jiang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Dandan Yuan
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Xiuzhen Chen
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Yanan Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
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15
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Martínez-Flores S, Mujica-Martinez CA, Polindara-García LA. Pd(II)‐Catalyzed C(sp2/sp3)‐H Arylation of Aryl‐glycinamide Derivatives Using Picolinamide as Directing Group. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sebastián Martínez-Flores
- Universidad Nacional Autónoma de México: Universidad Nacional Autonoma de Mexico Instituto de Química Ciudad Universitaria 04310 Ciudad de Mexico MEXICO
| | | | - Luis Angel Polindara-García
- Universidad Nacional Autonoma de Mexico Chemistry Institute Ciudad Universitaria 04510 Ciudad de Mexico MEXICO
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16
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Sadowski B, Yuan B, Lin Z, Ackermann L. Rhodaelectro‐catalyzed peri‐selective direct alkenylations with weak O‐coordination enabled by hydrogen evolution reaction (HER). Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202117188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Binbin Yuan
- University of Göttingen: Georg-August-Universitat Gottingen IOBC GERMANY
| | - Zhipeng Lin
- University of Göttingen: Georg-August-Universitat Gottingen IOBC GERMANY
| | - Lutz Ackermann
- Georg-August-Universitaet Goettingen Institut fuer Organische und Biomolekulare Chemie Tammannstr. 2 37077 Goettingen GERMANY
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17
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Sire C, Cattey H, Tsivery A, Hierso J, Roger J. Phosphorus‐Directed Rhodium‐Catalyzed C−H Arylation of 1‐Pyrenylphosphines Selective at the
K
‐Region. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101211] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Charline Sire
- Institut de Chimie Moléculaire de l'Université de Bourgogne ICMUB – UMR CNRS 6302) Université de Bourgogne-Franche-Comté (UBFC) 9 avenue Alain Savary 21078 Dijon Cedex France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne ICMUB – UMR CNRS 6302) Université de Bourgogne-Franche-Comté (UBFC) 9 avenue Alain Savary 21078 Dijon Cedex France
| | - Anthonia Tsivery
- Institut de Chimie Moléculaire de l'Université de Bourgogne ICMUB – UMR CNRS 6302) Université de Bourgogne-Franche-Comté (UBFC) 9 avenue Alain Savary 21078 Dijon Cedex France
| | - Jean‐Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne ICMUB – UMR CNRS 6302) Université de Bourgogne-Franche-Comté (UBFC) 9 avenue Alain Savary 21078 Dijon Cedex France
| | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne ICMUB – UMR CNRS 6302) Université de Bourgogne-Franche-Comté (UBFC) 9 avenue Alain Savary 21078 Dijon Cedex France
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18
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Berrou C, Prévost S. Palladium‐Catalyzed C8‐Oxygenation of Naphthalene Derivatives: Direct Access to Naphtholactone Skeleton. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Caroline Berrou
- Laboratoire de Synthèse Organique Ecole Polytechnique ENSTA Paris CNRS Institut Polytechnique de Paris Palaiseau 91128 Cedex France
| | - Sébastien Prévost
- Laboratoire de Synthèse Organique Ecole Polytechnique ENSTA Paris CNRS Institut Polytechnique de Paris Palaiseau 91128 Cedex France
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19
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N-Tosylcarboxamide in C–H Functionalization: More than a Simple Directing Group. Processes (Basel) 2020. [DOI: 10.3390/pr8080981] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
C–H activation with transition metal catalysis has become an important tool in organic synthesis for the functionalization of low reactive bonds and the preparation of complex molecules. The choice of the directing group (DG) proves to be crucial for the selectivity in this type of reaction, and several different functional groups have been used efficiently. This review describes recent advances in C–H functionalization of aromatic rings directed by a N-tosylcarboxamide group. Results regarding alkenylation, alkoxylation, halogenation, and arylation of C–H in the ortho position to the tosylcarboxamide are presented. Moreover, the advantage of this particular directing group is that it can undergo further transformation and act as CO or CON fragment reservoir to produce, in sequential fashion or one-pot sequence, various interesting (hetero)cycles such as phenanthridinones, dihydroisoquinolinones, fluorenones, or isoindolinones.
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