1
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An S, Ji H, Park J, Choi Y, Choe JK. Influence of chemical structures on reduction rates and defluorination of fluoroarenes during catalytic reduction using a rhodium-based catalyst. CHEMOSPHERE 2024; 362:142755. [PMID: 38969226 DOI: 10.1016/j.chemosphere.2024.142755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 06/29/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
Continuous growth in fluoroarene production has led to environmental pollution and health concerns owing to their persistence, which is attributed to the stable C-F bond in their structures. Herein, we investigated fluoroarene decomposition via hydrodefluorination using a rhodium-based catalyst, focusing on the effects of the chemical structure and functional group on the defluorination yield. Most compounds, except (pentafluoroethyl)benzene, exhibited full or partial reduction with pseudo-first-order rate constants in the range of 0.002-0.396 min-1 and defluorination yields of 0%-100%. Fluoroarenes with hydroxyl, methyl, and carboxylate groups were selected to elucidate how hydrocarbon and oxygen-containing functional groups influence the reaction rate and defluorination. Inhibition of the reaction rate and defluorination yield based on functional groups increased in the order of hydroxyl < methyl < carboxylate, which was identical to the order of the electron-withdrawing effect. Fluoroarenes with polyfluoro groups were also assessed; polyfluoro groups demonstrated a different influence on catalyst activity than non-fluorine functional groups because of fluorine atoms in the substituents undergoing defluorination. The reaction kinetics of (difluoromethyl)fluorobenzenes and their intermediates suggested that hydrogenation and defluorination occurred during degradation. Finally, the effects of the type and position of functional groups on the reaction rate and defluorination yield were investigated via multivariable linear regression analysis. Notably, the electron-withdrawing nature of functional groups appeared to have a greater impact on the defluorination yield of fluoroarenes than the calculated C-F bond dissociation energy.
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Affiliation(s)
- Seonyoung An
- Department of Civil and Environmental Engineering and Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Hojoong Ji
- Department of Civil and Environmental Engineering and Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Jaehyeong Park
- Department of Civil and Environmental Engineering and Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Yongju Choi
- Department of Civil and Environmental Engineering and Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.
| | - Jong Kwon Choe
- Department of Civil and Environmental Engineering and Institute of Construction and Environmental Engineering, Seoul National University, 1 Gwanak-ro Gwanak-gu, Seoul 08826, Republic of Korea.
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2
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Li HX, Yu ZX. Arene Reduction by Rh/Pd or Rh/Pt under 1 atm Hydrogen Gas and Room Temperature. Org Lett 2024. [PMID: 38630985 DOI: 10.1021/acs.orglett.4c01029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Current methods for arene hydrogenation generally need either harsh reaction conditions or complex catalyst preparation. Here we describe a mild and convenient protocol that only utilizes commercially available catalysts. Using [Rh(nbd)Cl]2 and Pd/C together as catalysts, arenes bearing various functional groups can be hydrogenated under 1 atm of H2 at room temperature. This arene hydrogenation can also be achieved using catalysts of [Rh(cod)Cl]2 and PtO2, thus avoiding glovebox manipulations and simplifying the reaction procedure.
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Affiliation(s)
- Han-Xiao Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhi-Xiang Yu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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3
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Chhabra A, Reich S, Shannon TM, Maleczka RE, Smith MR. Access to C(sp 3) borylated and silylated cyclic molecules: hydrogenation of corresponding arenes and heteroarenes. RSC Adv 2024; 14:10590-10607. [PMID: 38567346 PMCID: PMC10985595 DOI: 10.1039/d4ra00491d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/15/2024] [Indexed: 04/04/2024] Open
Abstract
This paper presents a simple and cost-effective hydrogenation method for synthesizing a myriad of cycloalkanes and saturated heterocycles bearing boryl or silyl substituents. The catalyst used are heterogeneous, readily available, bench stable, and recyclable. Also demonstrated is the application of the method to compounds that possess both boryl and silyl groups. When combined with Ir-catalyzed sp2 C-H borylation, such hydrogenations offer a two-step complementary alternative to direct sp3 C-H borylations that can suffer selectivity and reactivity issues. Of practical value to the community, complete stereochemical analyses of reported borylated compounds that were never fully characterized are reported herein.
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Affiliation(s)
- Arzoo Chhabra
- Department of Chemistry, Michigan State University 578 S Shaw Lane East Lansing Michigan 48824 USA
| | - Sabrina Reich
- Department of Chemistry, Michigan State University 578 S Shaw Lane East Lansing Michigan 48824 USA
| | - Timothy M Shannon
- Department of Chemistry, Michigan State University 578 S Shaw Lane East Lansing Michigan 48824 USA
| | - Robert E Maleczka
- Department of Chemistry, Michigan State University 578 S Shaw Lane East Lansing Michigan 48824 USA
| | - Milton R Smith
- Department of Chemistry, Michigan State University 578 S Shaw Lane East Lansing Michigan 48824 USA
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4
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Lutz MDR, Zhong H, Trapp N, Morandi B. Synthesis and Reversible H
2
Activation by Coordinatively Unsaturated Rhodium NHC Complexes. Helv Chim Acta 2023. [DOI: 10.1002/hlca.202200199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Affiliation(s)
- Marius D. R. Lutz
- Laboratorium für Organische Chemie ETH Zürich CH-8093 Zürich Switzerland
| | - Hongyu Zhong
- Laboratorium für Organische Chemie ETH Zürich CH-8093 Zürich Switzerland
| | - Nils Trapp
- Laboratorium für Organische Chemie ETH Zürich CH-8093 Zürich Switzerland
| | - Bill Morandi
- Laboratorium für Organische Chemie ETH Zürich CH-8093 Zürich Switzerland
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5
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Kaithal A, Sasmal HS, Dutta S, Schäfer F, Schlichter L, Glorius F. cis-Selective Hydrogenation of Aryl Germanes: A Direct Approach to Access Saturated Carbo- and Heterocyclic Germanes. J Am Chem Soc 2023; 145:4109-4118. [PMID: 36781169 PMCID: PMC9951224 DOI: 10.1021/jacs.2c12062] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Indexed: 02/15/2023]
Abstract
A catalytic approach of synthesizing the cis-selective saturated carbo- and heterocyclic germanium compounds (3D framework) is reported via the hydrogenation of readily accessible aromatic germanes (2D framework). Among the numerous catalysts tested, Nishimura's catalyst (Rh2O3/PtO2·H2O) exhibited the best hydrogenation reactivity with an isolated yield of up to 96%. A broad range of substrates including the synthesis of unprecedented saturated heterocyclic germanes was explored. This selective hydrogenation strategy could tolerate several functional groups such as -CF3, -OR, -F, -Bpin, and -SiR3 groups. The synthesized products demonstrated the applications in coupling reactions including the newly developed strategy of aza-Giese-type addition reaction (C-N bond formation) from the saturated cyclic germane product. These versatile motifs can have a substantial value in organic synthesis and medicinal chemistry as they show orthogonal reactivity in coupling reactions while competing with other coupling partners such as boranes or silanes, acquiring a three-dimensional structure with high stability and robustness.
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Affiliation(s)
- Akash Kaithal
- Westfälische
Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149 Münster, Germany
| | - Himadri Sekhar Sasmal
- Westfälische
Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149 Münster, Germany
| | - Subhabrata Dutta
- Westfälische
Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149 Münster, Germany
| | - Felix Schäfer
- Westfälische
Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149 Münster, Germany
| | - Lisa Schlichter
- Westfälische
Wilhelms-Universität Münster, Center for Soft Nanoscience
(SoN) and Organisch-Chemisches Institut, Busso-Peus-Str. 10, 48149 Münster, Germany
| | - Frank Glorius
- Westfälische
Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstraße 36, 48149 Münster, Germany
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6
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Zhang S, Zhou R, Duan YN, Zhou Y, Zhang X, Wen J. Homogeneous Dearomative Hydrogenation with a Co/P 4 N 2 Catalyst: A Nucleophilic Approach. Chemistry 2023; 29:e202203189. [PMID: 36401594 DOI: 10.1002/chem.202203189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/21/2022]
Abstract
Arene hydrogenation is the most straightforward method to prepare carbo- and heterocycles. However, the high resonance energy prevents aromatic substrates from hydrogenation. Herein the homogeneous, nucleophilic hydrogenation of less electron-rich arenes and heteroarenes is reported. The Co(P4 N2 )H species that has been demonstrated to be a strong hydride donor could deliver a hydride ion to the cyano (hetero)arene substrates. Deuterium labeling experiments supported a Michael-type reaction pathway. Theoretical analyses have been conducted to investigate the hydricity of the catalytically active CoH species and the electrophilicity of the arene substrates. An outlook for the synthesis of more challenging substituted benzenes was proposed based on the in silico modification of the CoH species.
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Affiliation(s)
- Shaoke Zhang
- Department of Chemistry, the Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, P. R. China
| | - Rong Zhou
- Department of Chemistry, the Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, P. R. China
| | - Ya-Nan Duan
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou, 515031, P. R. China
| | - Yang Zhou
- Department of Chemistry, the Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, P. R. China
| | - Xumu Zhang
- Department of Chemistry, the Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, P. R. China
| | - Jialin Wen
- Department of Chemistry, the Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen, 518055, P. R. China
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7
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Ikemoto S, Muratsugu S, Koitaya T, Tsuji Y, Das M, Yoshizawa K, Glorius F, Tada M. Coordination-Induced Trigger for Activity: N-Heterocyclic Carbene-Decorated Ceria Catalysts Incorporating Cr and Rh with Activity Induction by Surface Adsorption Site Control. J Am Chem Soc 2023; 145:1497-1504. [PMID: 36511728 DOI: 10.1021/jacs.2c07290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A coordination-induced trigger for catalytic activity is proposed on an N-heterocyclic carbene (NHC)-decorated ceria catalyst incorporating Cr and Rh (ICy-r-Cr0.19Rh0.06CeOz). ICy-r-Cr0.19Rh0.06CeOz was prepared by grafting 1,3-dicyclohexylimidazol-2-ylidene (ICy) onto H2-reduced Cr0.19Rh0.06CeOz (r-Cr0.19Rh0.06CeOz) surfaces, which went on to exhibit substantial catalytic activity for the 1,4-arylation of cyclohexenone with phenylboronic acid, whereas r-Cr0.19Rh0.06CeOz without ICy was inactive. FT-IR, Rh K-edge XAFS, XPS, and photoluminescence spectroscopy showed that the ICy carbene-coordinated Rh nanoclusters were the key active species. The coordination-induced trigger for catalytic activity on the ICy-bearing Rh nanoclusters could not be attributed to electronic donation from ICy to the Rh nanoclusters. DFT calculations suggested that ICy controlled the adsorption sites of the phenyl group on the Rh nanocluster to promote the C-C bond formation of the phenyl group and cyclohexenone.
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Affiliation(s)
- Satoru Ikemoto
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Satoshi Muratsugu
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
| | - Takanori Koitaya
- Department of Materials Molecular Science, Institute for Molecular Science, Myodaiji-cho, Okazaki, Aichi 444-8585, Japan
| | - Yuta Tsuji
- Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.,Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Mowpriya Das
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and International Research Center for Molecular Systems, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster, Organisch-Chemisches Institut, Corrensstrasse 40, 48149 Münster, Germany
| | - Mizuki Tada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan.,Research Center for Materials Science (RCMS), Integrated Research Consortium on Chemical Sciences (IRCCS), and Institute for Advanced Study, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8602, Japan
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8
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Kim H, Lee E. Ambiphilic singlet carbenes: Electron donors and acceptors. B KOREAN CHEM SOC 2022. [DOI: 10.1002/bkcs.12620] [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)
- Hyunho Kim
- Department of Chemistry Pohang University of Science and Technology Pohang Republic of Korea
| | - Eunsung Lee
- Department of Chemistry Pohang University of Science and Technology Pohang Republic of Korea
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9
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Kaithal A, Wagener T, Bellotti P, Daniliuc CG, Schlichter L, Glorius F. Access to Unexplored 3D Chemical Space:
cis
‐Selective Arene Hydrogenation for the Synthesis of Saturated Cyclic Boronic Acids. Angew Chem Int Ed Engl 2022; 61:e202206687. [PMID: 35612895 PMCID: PMC9400866 DOI: 10.1002/anie.202206687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Indexed: 11/08/2022]
Abstract
A new class of saturated boron‐incorporated cyclic molecules has been synthesized employing an arene‐hydrogenation methodology. cis‐Selective hydrogenation of easily accessible, and biologically important molecules comprising benzoxaborole, benzoxaborinin, and benzoxaboripin derivatives is reported. Among the various catalysts tested, rhodium cyclic(alkyl)(amino)carbene [Rh‐CAAC] (1) pre‐catalyst revealed the best hydrogenation activity confirming turnover number up to 1400 with good to high diastereoselectivity. A broad range of functional groups was tolerated including sensitive substituents such as −F, −CF3, and −silyl groups. The utility of the synthesized products was demonstrated by the recognition of diols and sugars under physiological conditions. These motifs can have a substantial importance in medicinal chemistry as they possess a three‐dimensional structure, are highly stable, soluble in water, form hydrogen bonds, and interact with diols and sugars.
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Affiliation(s)
- Akash Kaithal
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
| | - Tobias Wagener
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
| | - Peter Bellotti
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
| | - Constantin G. Daniliuc
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
| | - Lisa Schlichter
- Westfälische Wilhelms-Universität Münster Westfälische Center for Soft Nanoscience (SoN) and Organisch-Chemisches Institut Busso-Peus-Str.10 48149 Münster Germany
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster Organisch-Chemisches Institut Corrensstraße 40 48149 Münster Germany
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10
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Schiwek C, Stegbauer S, Pickl T, Bach T. Rhodium(CAAC)‐Catalyzed Arene Hydrogenation of Benzo‐fused N‐Heterocycles to Saturated Building Blocks with an all‐cis Configuration. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200582] [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]
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11
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Viereck P, Hierlmeier G, Tosatti P, Pabst TP, Puentener K, Chirik PJ. Molybdenum-Catalyzed Asymmetric Hydrogenation of Fused Arenes and Heteroarenes. J Am Chem Soc 2022; 144:11203-11214. [PMID: 35714999 DOI: 10.1021/jacs.2c02007] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The synthesis of enantioenriched molybdenum precatalysts for the asymmetric hydrogenation of substituted quinolines and naphthalenes is described. Three classes of pincer ligands with chiral substituents were evaluated as supporting ligands in the molybdenum-catalyzed hydrogenation reactions, where oxazoline imino(pyridine) chelates were identified as optimal. A series of 2,6-disubstituted quinolines was hydrogenated to enantioenriched decahydroquinolines with high diastereo- and enantioselectivities. For quinoline derivatives, selective hydrogenation of both the carbocycle and heterocycle was observed depending on the ring substitution. Spectroscopic and mechanistic studies established molybdenum η6-arene complexes as the catalyst resting state and that partial hydrogenation arises from dissociation of the substrate from the coordination sphere of molybdenum prior to complete reduction. A stereochemical model is proposed based on the relative energies of the respective coordination of the prochiral faces of the arene determined by steric interactions between the substrate and the chiral ligand, rather than through precoordination by a heteroatom.
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Affiliation(s)
- Peter Viereck
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Gabriele Hierlmeier
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Paolo Tosatti
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd, Basel 4070, Switzerland
| | - Tyler P Pabst
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Kurt Puentener
- Department of Process Chemistry & Catalysis, F. Hoffmann-La Roche Ltd, Basel 4070, Switzerland
| | - Paul J Chirik
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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12
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13
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Kaithal A, Wagener T, Bellotti P, Daniliuc CG, Schlichter L, Glorius F. Access to Unexplored 3D Chemical Space: cis‐Selective Arene Hydrogenation for the Synthesis of Saturated Cyclic Boronic Acids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206687] [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)
- Akash Kaithal
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry Münster GERMANY
| | - Tobias Wagener
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry GERMANY
| | - Peter Bellotti
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry GERMANY
| | - Constantin G. Daniliuc
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry GERMANY
| | - Lisa Schlichter
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Chemistry GERMANY
| | - Frank Glorius
- Westfälische Wilhelms-Universität Münster: Westfalische Wilhelms-Universitat Munster Organisch-Chemisches Institut Corrensstrasse 40 48149 Münster GERMANY
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14
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15
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Schiwek CH, Jandl C, Bach T. All- cis Saturated 2,5-Diketopiperazines by a Diastereoselective Rhodium-Catalyzed Arene Hydrogenation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00400] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Christian H. Schiwek
- Technical University Munich, School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Christian Jandl
- Technical University Munich, School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Lichtenbergstrasse 4, 85747 Garching, Germany
| | - Thorsten Bach
- Technical University Munich, School of Natural Sciences, Department of Chemistry and Catalysis Research Center, Lichtenbergstrasse 4, 85747 Garching, Germany
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16
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Roesky HW, Kushvaha SK, Mishra A, Mondal KC. Recent advances in the domain of Cyclic (alkyl)(amino) carbenes. Chem Asian J 2022; 17:e202101301. [PMID: 34989475 PMCID: PMC9307053 DOI: 10.1002/asia.202101301] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/25/2021] [Indexed: 12/03/2022]
Abstract
Isolation of cyclic (alkyl) amino carbenes (cAACs) in 2005 has been a major achievement in the field of stable carbenes due to their better electronic properties. cAACs and bicyclic(alkyl)(amino)carbene (BicAAC) in essence are the most electrophilic as well as nucleophilic carbenes are known till date. Due to their excellent electronic properties in terms of nucleophilic and electrophilic character, cAACs have been utilized in different areas of chemistry, including stabilization of low valent main group and transition metal species, activation of small molecules, and catalysis. The applications of cAACs in catalysis have opened up new avenues of research in the field of cAAC chemistry. This review summarizes the major results of cAAC chemistry published until August 2021.
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Affiliation(s)
- Herbert W Roesky
- Georg-August-Universitat Gottingen, Department of Chemistry, Tammannstrasse 4, 37077, Göttingen, GERMANY
| | | | - Ankush Mishra
- IIT Madras: Indian Institute of Technology Madras, Chemistry, INDIA
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17
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Gunasekar R, Goodyear RL, Silvestri IP, Xiao J. Recent Developments in Enantio- and Diastereoselective Hydrogenation of N-Heteroaromatic Compounds. Org Biomol Chem 2022; 20:1794-1827. [DOI: 10.1039/d1ob02331d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enantioselective and diastereoselective hydrogenation of N-heteroaromatic compounds is an efficient strategy to access chirally enriched cyclic heterocycles, which often possess highly bio-active properties. This strategy, however, has only been...
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18
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Zhang J, Liu T, Wang L, Wang X. Recent Process in the in situ Generated Metal Nanocluster Catalysis. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202203060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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19
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Yang HJ, Redington M, Miller DP, Zurek E, Kim M, Yoo CS, Lim SY, Cheong H, Chae SA, Ahn D, Hur NH. New monoclinic ruthenium dioxide with highly selective hydrogenation activity. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00815g] [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
HxRuO2 acts as a standalone catalyst exhibiting selective hydrogenation under mild conditions. Mobile protons embedded in the oxide lattice play an important role in stabilizing the distorted structure, and facile proton dynamics is key to improving catalytic properties.
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Affiliation(s)
- Hee Jung Yang
- Department of Chemistry, Sogang University, Seoul 04107, Korea
| | - Morgan Redington
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Daniel P. Miller
- Department of Chemistry, Hofstra University, Hempstead, NY 11549, USA
| | - Eva Zurek
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Minseob Kim
- Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA 99164, USA
| | - Choong-Shik Yoo
- Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA 99164, USA
| | - Soo Yeon Lim
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Hyeonsik Cheong
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Seen-Ae Chae
- Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea
| | - Docheon Ahn
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Nam Hwi Hur
- Department of Chemistry, Sogang University, Seoul 04107, Korea
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20
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Zhang H, Cai C, Hu T, Zhang Z, Dai L, Fei H, Bai H, Wu C, Gong X, Zheng X. Magnetically separable and efficient platinum catalyst: Amino ligand enhanced loading and Fe
2+
facilitated Pt
0
formation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6513] [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)
- Haifeng Zhang
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Cheng Cai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Tao Hu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Zhijie Zhang
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Lina Dai
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Huafeng Fei
- Key Laboratory of Science and Technology on High‐tech Polymer Materials Chinese Academy of Sciences Beijing China
| | - Hongli Bai
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Chonggang Wu
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Xinghou Gong
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
| | - Xuan Zheng
- Hubei Provincial Key Laboratory of Green Materials for Light Industry Wuhan China
- Collaborative Innovation Center of Green Light‐weight Materials and Processing Wuhan China
- School of Materials and Chemical Engineering Hubei University of Technology Wuhan China
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21
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Li WH, Yang J, Jing H, Zhang J, Wang Y, Li J, Zhao J, Wang D, Li Y. Creating High Regioselectivity by Electronic Metal-Support Interaction of a Single-Atomic-Site Catalyst. J Am Chem Soc 2021; 143:15453-15461. [PMID: 34506145 DOI: 10.1021/jacs.1c08088] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Ligands are the most commonly used means to control the regioselectivity of organic reactions. It is very important to develop new regioselective control methods for organic synthesis. In this study, we designed and synthesized a single-atomic-site catalyst (SAC), namely, Cu1-TiC, with strong electronic metal-support interaction (EMSI) effects by studying various reaction mechanisms. π cloud back-donation to the alkyne on the metal catalytic intermediate was enhanced during the reaction by using transient electron-rich characteristics. In this way, the reaction achieved highly linear-E-type regioselective conversion of electronically unbiased alkynes and completely avoided the formation of branched isomers (ln:br >100:1, TON up to 612, 3 times higher than previously recorded). The structural elements of the SACs were designed following the requirements of the synthesis mechanism. Every element in the catalyst played an important role in the synthesis mechanism. This demonstrated that the EMSI, which is normally thought to be responsible for the improvement in catalytic efficiency and durability in heterogeneous catalysis, now first shows exciting potential for regulating the regioselectivity in homogeneous catalysis.
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Affiliation(s)
- Wen-Hao Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jiarui Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongyu Jing
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jian Zhang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yu Wang
- Shanghai Synchrotron Radiation Facilities, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, 201204, China
| | - Jiong Li
- Shanghai Synchrotron Radiation Facilities, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai, 201204, China
| | - Jie Zhao
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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22
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Moock D, Wagener T, Hu T, Gallagher T, Glorius F. Enantio- and Diastereoselective, Complete Hydrogenation of Benzofurans by Cascade Catalysis. Angew Chem Int Ed Engl 2021; 60:13677-13681. [PMID: 33844391 PMCID: PMC8251578 DOI: 10.1002/anie.202103910] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Indexed: 12/13/2022]
Abstract
We report an enantio- and diastereoselective, complete hydrogenation of multiply substituted benzofurans in a one-pot cascade catalysis. The developed protocol facilitates the controlled installation of up to six new defined stereocenters and produces architecturally complex octahydrobenzofurans, prevalent in many bioactive molecules. A unique match of a chiral homogeneous ruthenium-N-heterocyclic carbene complex and an in situ activated rhodium catalyst from a complex precursor act in sequence to enable the presented process.
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Affiliation(s)
- Daniel Moock
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Tobias Wagener
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Tianjiao Hu
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Timothy Gallagher
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstrasse 4048149MünsterGermany
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23
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Parker PD, Hou X, Dong VM. Reducing Challenges in Organic Synthesis with Stereoselective Hydrogenation and Tandem Catalysis. J Am Chem Soc 2021; 143:6724-6745. [PMID: 33891819 DOI: 10.1021/jacs.1c00750] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Tandem catalysis enables the rapid construction of complex architectures from simple building blocks. This Perspective shares our interest in combining stereoselective hydrogenation with transformations such as isomerization, oxidation, and epimerization to solve diverse challenges. We highlight the use of tandem hydrogenation for preparing complex natural products from simple prochiral building blocks and present tandem catalysis involving transfer hydrogenation and dynamic kinetic resolution. Finally, we underline recent breakthroughs and opportunities for asymmetric hydrogenation.
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Affiliation(s)
- Patrick D Parker
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Xintong Hou
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Vy M Dong
- Department of Chemistry, University of California, Irvine, California 92697, United States
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24
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25
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Moock D, Wagener T, Hu T, Gallagher T, Glorius F. Enantio‐ und diastereoselektive, vollständige Hydrierung von Benzofuranen mittels Kaskadenkatalyse. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103910] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Daniel Moock
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tobias Wagener
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Tianjiao Hu
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Timothy Gallagher
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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26
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Mondal R, Agbaria M, Nairoukh Z. Fluorinated Rings: Conformation and Application. Chemistry 2021; 27:7193-7213. [PMID: 33512034 DOI: 10.1002/chem.202005425] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 12/16/2022]
Abstract
The introduction of fluorine atoms into molecules and materials across many fields of academic and industrial research is now commonplace, owing to their unique properties. A particularly interesting feature is the impact of fluorine substitution on the relative orientation of a C-F bond when incorporated into organic molecules. In this Review, we will be discussing the conformational behavior of fluorinated aliphatic carbo- and heterocyclic systems. The conformational preference of each system is associated with various interactions introduced by fluorine substitution such as charge-dipole, dipole-dipole, and hyperconjugative interactions. The contribution of each interaction on the stabilization of the fluorinated alicyclic system, which manifests itself in low conformations, will be discussed in detail. The novelty of this feature will be demonstrated by presenting the most recent applications.
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Affiliation(s)
- Rajarshi Mondal
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 9190401, Israel
| | - Mohamed Agbaria
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 9190401, Israel
| | - Zackaria Nairoukh
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem, 9190401, Israel
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27
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Khan S, Sharifi M, Hasan A, Attar F, Edis Z, Bai Q, Derakhshankhah H, Falahati M. Magnetic nanocatalysts as multifunctional platforms in cancer therapy through the synthesis of anticancer drugs and facilitated Fenton reaction. J Adv Res 2021; 30:171-184. [PMID: 34026294 PMCID: PMC8132204 DOI: 10.1016/j.jare.2020.12.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 11/16/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
Background Heterocyclic compounds have always been used as a core portion in the development of anticancer drugs. However, there is a pressing need for developing inexpensive and simple alternatives to high-cost and complex chemical agents-based catalysts for large-scale production of heterocyclic compounds. Also, development of some smart platforms for cancer treatment based on nanoparticles (NPs) which facilitate Fenton reaction have been widely explored by different scientists. Magnetic NPs not only can serve as catalysts in the synthesis of heterocyclic compounds with potential anticancer properties, but also are widely used as smart agents in targeting cancer cells and inducing Fenton reactions. Aim of Review Therefore, in this review we aim to present an updated summary of the reports related to the main clinical or basic application and research progress of magnetic NPs in cancer as well as their application in the synthesis of heterocyclic compounds as potential anticancer drugs. Afterwards, specific tumor microenvironment (TME)-responsive magnetic nanocatalysts for cancer treatment through triggering Fenton-like reactions were surveyed. Finally, some ignored factors in the design of magnetic nanocatalysts- triggered Fenton-like reaction, challenges and future perspective of magnetic nanocatalysts-assisted synthesis of heterocyclic compounds and selective cancer therapy were discussed.Key Scientific Concepts of Review:This review may pave the way for well-organized translation of magnetic nanocatalysts in cancer therapy from the bench to the bedside.
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Affiliation(s)
- Suliman Khan
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Anwarul Hasan
- Department of Mechanical and Industrial Engineering, College of Engineering, Qatar University, Doha 2713, Qatar
- Biomedical Research Center, Qatar University, Doha 2713, Qatar
| | - Farnoosh Attar
- Department of Food Toxicology, Research Center of Food Technology and Agricultural Products, Standard Research Institute (SRI), Karaj, Iran
| | - Zehra Edis
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Ajman University, PO Box 346, Ajman, United Arab Emirates
| | - Qian Bai
- Department of Anesthesiology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, PR China
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Sciences and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
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28
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Theodoridis A, Papamokos G, Wiesenfeldt MP, Wollenburg M, Müllen K, Glorius F, Floudas G. Polarity Matters: Dielectric Relaxation in All- cis-Multifluorinated Cycloalkanes. J Phys Chem B 2021; 125:3700-3709. [PMID: 33818098 DOI: 10.1021/acs.jpcb.1c00100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The polarity of all-cis-multifluorinated cyclohexanes can be fine-tuned by the number and relative orientation of fluoro substituents, giving rise to a series of compounds with strong dipole moments. Simulations provided the energetics, the dipole moments, and the respective molecular polarizabilities, while dielectric spectroscopy gave information on the dielectric permittivities and the molecular dynamics. In special cases, dipole moments in excess of 6 D and dielectric permittivities of over 300 were obtained by simulation and experiment. Melting temperatures within a given family of multifluorinated cyclohexanes were found to scale with the molecular volume. The less-symmetric all-cis-octafluorotetrahydronaphthalene did not readily crystallize, permitting an investigation of the molecular dynamics in an energetically unfavorable yet rigid and facially polarized isomer. The resulting dynamics above the glass temperature conform to the structural α-relaxation and to the celebrated Johari-Goldstein β-relaxation.
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Affiliation(s)
| | - George Papamokos
- Department of Physics, University of Ioannina, 451 10 Ioannina, Greece
| | - Mario P Wiesenfeldt
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Marco Wollenburg
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - Klaus Müllen
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, 48149 Münster, Germany
| | - George Floudas
- Department of Physics, University of Ioannina, 451 10 Ioannina, Greece.,University Research Center of Ioannina (URCI), Institute of Materials Science and Computing, 451 10 Ioannina, Greece
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29
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Wagener T, Lückemeier L, Daniliuc CG, Glorius F. Interrupted Pyridine Hydrogenation: Asymmetric Synthesis of δ-Lactams. Angew Chem Int Ed Engl 2021; 60:6425-6429. [PMID: 33460521 PMCID: PMC7986189 DOI: 10.1002/anie.202016771] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Indexed: 12/22/2022]
Abstract
Metal-catalyzed hydrogenation is an effective method to transform readily available arenes into saturated motifs, however, current hydrogenation strategies are limited to the formation of C-H and N-H bonds. The stepwise addition of hydrogen yields reactive unsaturated intermediates that are rapidly reduced. In contrast, the interruption of complete hydrogenation by further functionalization of unsaturated intermediates offers great potential for increasing chemical complexity in a single reaction step. Overcoming the tenet of full reduction in arene hydrogenation has been seldom demonstrated. In this work we report the synthesis of sought-after, enantioenriched δ-lactams from oxazolidinone-substituted pyridines and water by an interrupted hydrogenation mechanism.
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Affiliation(s)
- Tobias Wagener
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Lukas Lückemeier
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Constantin G. Daniliuc
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
| | - Frank Glorius
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität MünsterCorrensstraße 4048149MünsterGermany
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30
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Wang Y, Chang Z, Hu Y, Lin X, Dou X. Mild and Selective Rhodium-Catalyzed Transfer Hydrogenation of Functionalized Arenes. Org Lett 2021; 23:1910-1914. [PMID: 33599508 DOI: 10.1021/acs.orglett.1c00341] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Diboron-mediated rhodium-catalyzed transfer hydrogenation of functionalized arenes is reported. In addition to good functional group tolerance, the reaction features operational simplicity and controllable chemoselectivity. The general applicability of this procedure is demonstrated by the selective hydrogenation of a range of arenes, including functionalized benzenes, biphenyls, and polyaromatics.
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Affiliation(s)
- Yuhan Wang
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Zhiqian Chang
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Yan Hu
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Xiao Lin
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaowei Dou
- Department of Chemistry, School of Science, China Pharmaceutical University, Nanjing 211198, China
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31
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Wagener T, Lückemeier L, Daniliuc CG, Glorius F. Unterbrochene Pyridin‐Hydrierung: asymmetrische Synthese von δ‐Lactamen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016771] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tobias Wagener
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Lukas Lückemeier
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Deutschland
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32
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Schiwek CH, Jandl C, Bach T. Diastereoselective Rhodium-Catalyzed Hydrogenation of 2-Oxindoles and 3,4-Dihydroquinolones. Org Lett 2020; 22:9468-9472. [PMID: 33200605 DOI: 10.1021/acs.orglett.0c03427] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The benzene ring of indolin-2-ones (2-oxindoles) and 3,4-dihydroquinol-2-ones was converted to a saturated cyclohexane ring by hydrogenation in the presence of the rhodium complex Cy(CAAC)Rh(cod)Cl. The stereoselectivity of the process was found to be high with respect to both external substituent R1 within the saturated part of the heterocyclic ring and substituent X on the benzene ring. Twenty-one hexahydroindolin-2(3H)-ones (70-99% yield, dr = 83/17 to >99/1) and twelve octahydro-2(1H)-quinolinones (87-96% yield, dr = 64/36 to >99/1) were obtained with the major diastereoisomer exhibiting the hydrogen atoms in an all-cis arrangement. The high tolerance toward functional groups and the compatibility with existing stereogenic centers are key features of the hydrogenation protocol presented here.
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Affiliation(s)
- Christian H Schiwek
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Christian Jandl
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
| | - Thorsten Bach
- Department Chemie and Catalysis Research Center (CRC), Technische Universität München, 85747 Garching, Germany
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33
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Gelis C, Heusler A, Nairoukh Z, Glorius F. Catalytic Transfer Hydrogenation of Arenes and Heteroarenes. Chemistry 2020; 26:14090-14094. [PMID: 32519788 PMCID: PMC7702167 DOI: 10.1002/chem.202002777] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Indexed: 01/19/2023]
Abstract
Transfer hydrogenation reactions are of great interest to reduce diverse molecules under mild reaction conditions. To date, this type of reaction has only been successfully applied to alkenes, alkynes and polarized unsaturated compounds such as ketones, imines, pyridines, etc. The reduction of benzene derivatives by transfer hydrogenation has never been described, which is likely due to the high energy barrier required to dearomatize these compounds. In this context, we have developed a catalytic transfer hydrogenation reaction for the reduction of benzene derivatives and heteroarenes to form complex 3-dimensional scaffolds bearing various functional groups at room temperature without needing compressed hydrogen gas.
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Affiliation(s)
- Coralie Gelis
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Arne Heusler
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Zackaria Nairoukh
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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34
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Yu C, Kütt A, Röschenthaler G, Lebl T, Cordes DB, Slawin AMZ, Bühl M, O'Hagan D. Janus Face All-cis 1,2,4,5-tetrakis(trifluoromethyl)- and All-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)- Cyclohexanes. Angew Chem Int Ed Engl 2020; 59:19905-19909. [PMID: 32691941 PMCID: PMC7693182 DOI: 10.1002/anie.202008662] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Indexed: 02/03/2023]
Abstract
We report the synthesis of all-cis 1,2,4,5-tetrakis (trifluoromethyl)- and all-cis 1,2,3,4,5,6-hexakis (trifluoromethyl)- cyclohexanes by direct hydrogenation of precursor tetrakis- or hexakis- (trifluoromethyl)benzenes. The resultant cyclohexanes have a stereochemistry such that all the CF3 groups are on the same face of the cyclohexyl ring. All-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)cyclohexane is the most sterically demanding of the all-cis hexakis substituted cyclohexanes prepared to date, with a barrier (ΔG) to ring inversion calculated at 27 kcal mol-1 . The X-ray structure of all-cis 1,2,3,4,5,6-hexakis(trifluoromethyl)cyclohexane displays a flattened chair conformation and the electrostatic profile of this compound reveals a large diffuse negative density on the fluorine face and a focused positive density on the hydrogen face. The electropositive hydrogen face can co-ordinate chloride (K≈103 ) and to a lesser extent fluoride and iodide ions. Dehydrofluorination promoted decomposition occurs with fluoride ion acting as a base.
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Affiliation(s)
- Cihang Yu
- School of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsKY16 9STUK
| | - Agnes Kütt
- Department of Life Sciences and ChemistryJacobs University Bremen, gGmbHP.O. Box 750 56128725BremenGermany
- University of TartuInstitute of ChemistryRavila 14a50411TartuEstonia
| | - Gerd‐Volker Röschenthaler
- Department of Life Sciences and ChemistryJacobs University Bremen, gGmbHP.O. Box 750 56128725BremenGermany
| | - Tomas Lebl
- School of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsKY16 9STUK
| | - David B. Cordes
- School of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsKY16 9STUK
| | | | - Michael Bühl
- School of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsKY16 9STUK
| | - David O'Hagan
- School of ChemistryUniversity of St AndrewsNorth HaughSt AndrewsKY16 9STUK
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35
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Wollenburg M, Heusler A, Bergander K, Glorius F. trans-Selective and Switchable Arene Hydrogenation of Phenol Derivatives. ACS Catal 2020; 10:11365-11370. [PMID: 33133752 PMCID: PMC7594304 DOI: 10.1021/acscatal.0c03423] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/09/2020] [Indexed: 01/28/2023]
Abstract
![]()
A trans-selective arene hydrogenation of abundant
phenol derivatives catalyzed by a commercially available heterogeneous
palladium catalyst is reported. The described method tolerates a variety
of functional groups and provides access to a broad scope of trans-configurated cyclohexanols as potential building blocks
for life sciences and beyond in a one-step procedure. The transformation
is strategically important because arene hydrogenation preferentially
delivers the opposite cis-isomers. The diastereoselectivity
of the phenol hydrogenation can be switched to the cis-isomers by employing rhodium-based catalysts. Moreover, a protocol
for the chemoselective hydrogenation of phenols to cyclohexanones
was developed.
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Affiliation(s)
- Marco Wollenburg
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Arne Heusler
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Klaus Bergander
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany
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36
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Yu C, Kütt A, Röschenthaler G, Lebl T, Cordes DB, Slawin AMZ, Bühl M, O'Hagan D. Janus Face All‐
cis
1,2,4,5‐tetrakis(trifluoromethyl)‐ and All‐
cis
1,2,3,4,5,6‐hexakis(trifluoromethyl)‐ Cyclohexanes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008662] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Cihang Yu
- School of Chemistry University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - Agnes Kütt
- Department of Life Sciences and Chemistry Jacobs University Bremen, gGmbH P.O. Box 750 561 28725 Bremen Germany
- University of Tartu Institute of Chemistry Ravila 14a 50411 Tartu Estonia
| | - Gerd‐Volker Röschenthaler
- Department of Life Sciences and Chemistry Jacobs University Bremen, gGmbH P.O. Box 750 561 28725 Bremen Germany
| | - Tomas Lebl
- School of Chemistry University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - David B. Cordes
- School of Chemistry University of St Andrews North Haugh St Andrews KY16 9ST UK
| | | | - Michael Bühl
- School of Chemistry University of St Andrews North Haugh St Andrews KY16 9ST UK
| | - David O'Hagan
- School of Chemistry University of St Andrews North Haugh St Andrews KY16 9ST UK
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Chernyshev VM, Denisova EA, Eremin DB, Ananikov VP. The key role of R-NHC coupling (R = C, H, heteroatom) and M-NHC bond cleavage in the evolution of M/NHC complexes and formation of catalytically active species. Chem Sci 2020; 11:6957-6977. [PMID: 33133486 PMCID: PMC7553045 DOI: 10.1039/d0sc02629h] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Accepted: 06/19/2020] [Indexed: 02/01/2023] Open
Abstract
Complexes of metals with N-heterocyclic carbene ligands (M/NHC) are typically considered the systems of choice in homogeneous catalysis due to their stable metal-ligand framework. However, it becomes obvious that even metal species with a strong M-NHC bond can undergo evolution in catalytic systems, and processes of M-NHC bond cleavage are common for different metals and NHC ligands. This review is focused on the main types of the M-NHC bond cleavage reactions and their impact on activity and stability of M/NHC catalytic systems. For the first time, we consider these processes in terms of NHC-connected and NHC-disconnected active species derived from M/NHC precatalysts and classify them as fundamentally different types of catalysts. Problems of rational catalyst design and sustainability issues are discussed in the context of the two different types of M/NHC catalysis mechanisms.
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Affiliation(s)
- Victor M Chernyshev
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
| | - Ekaterina A Denisova
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
| | - Dmitry B Eremin
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
- The Bridge@USC , University of Southern California , 1002 Childs Way , Los Angeles , California 90089-3502 , USA
| | - Valentine P Ananikov
- Platov South-Russian State Polytechnic University (NPI) , Prosveschenya 132 , Novocherkassk , 346428 , Russia
- N. D. Zelinsky Institute of Organic Chemistry , Russian Academy of Sciences , Leninsky Prospect 47 , 119991 Moscow , Russian Federation
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38
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Kacem S, Emondts M, Bordet A, Leitner W. Selective hydrogenation of fluorinated arenes using rhodium nanoparticles on molecularly modified silica. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01716g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh nanoparticles prepared on hydrophobic molecularly modified silica act as effective catalysts for the hydrogenation of fluoroarenes to fluorocyclohexane derivatives.
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Affiliation(s)
- Souha Kacem
- Max Planck Institute for Chemical Energy Conversion
- 45470 Mülheim an der Ruhr
- Germany
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
| | - Meike Emondts
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
- 52074 Aachen
- Germany
- DWI-Leibniz Institute for Interactive Materials
| | - Alexis Bordet
- Max Planck Institute for Chemical Energy Conversion
- 45470 Mülheim an der Ruhr
- Germany
| | - Walter Leitner
- Max Planck Institute for Chemical Energy Conversion
- 45470 Mülheim an der Ruhr
- Germany
- Institut für Technische und Makromolekulare Chemie
- RWTH Aachen University
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