1
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Zhang J, Chen Z, Chen M, Zhou Q, Zhou R, Wang W, Shao Y, Zhang F. Lanthanide/B(C 6F 5) 3-Promoted Hydroboration Reduction of Indoles and Quinolines with Pinacolborane. J Org Chem 2024. [PMID: 38178689 DOI: 10.1021/acs.joc.3c01767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
We have developed a lanthanide/B(C6F5)3-promoted hydroboration reduction of indoles and quinolines with pinacolborane (HBpin). This reaction provides streamlined access to a range of nitrogen-containing compounds in moderate to excellent yields. Large-scale synthesis and further transformations to bioactive compounds indicate that the method has potential practical applications. Preliminary mechanistic studies suggest that amine additives promote the formation of indole-borane intermediates, and the lanthanide/B(C6F5)3-promoted hydroboration reduction proceeds via hydroboration of indole-borane intermediates with HBpin and in situ-formed BH3 species, followed by the protodeborylation process.
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Affiliation(s)
- Jianping Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ziyan Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Mingxin Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Qi Zhou
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Rongrong Zhou
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Wenli Wang
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Yinlin Shao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
- Institute of New Materials & Industrial Technology, Wenzhou University, Wenzhou 325035, China
| | - Fangjun Zhang
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, China
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2
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Shi C, Xu R, He L, Li T, Liu S, Yun R. Endowing Nanoparticles with High Stability on the Hydrogenation Reaction by the Amino Group-Assisted Strategy. Inorg Chem 2023; 62:13400-13404. [PMID: 37552508 DOI: 10.1021/acs.inorgchem.3c01743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
In the field of a heterogeneous industrial catalysis process, the encapsulated structure plays a crucial role in preventing active sites from leaching during the reaction; however, related studies on the strategy to fabricate encapsulated catalysts under control remain rare. Herein, we develop an amino-assisted strategy to construct a highly stable catalyst with core-shell copper nanoparticles (NPs), namely, Cu@NC (NC represents the nitrogen-doped carbon), presenting not only excellent activity but also high durability on the hydrogenation of quinolines even in the large-scale tests, which is very vital in practical application. In contrast, in the absence of the amino group, the Cu NPs were dispersed out of the carbon surface to form Cu/NC, leading to readily lose activity in the recycling tests due to the leaching occurred during the catalytic process. This work offers a promising method to fabricate a stable catalyst to enhance durability in heterogeneous catalysis.
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Affiliation(s)
- Changsong Shi
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
| | - Ruiming Xu
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
| | - Lei He
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
| | - Tuanhui Li
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
| | - Shoujie Liu
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
- School of Materials Science and Engineering, Anhui University, Hefei 230601, P. R. China
| | - Ruirui Yun
- The Key Laboratory of Functional Molecular Solids Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 214001, P. R. China
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3
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Tummalapalli KSS, Zhao X, Rainier JD. A Biaryl-Cyclohexenone Photoelectrocyclization/Dearomatization Sequence to Substituted Terpenes. Tetrahedron 2023; 131:133180. [PMID: 37593114 PMCID: PMC10430876 DOI: 10.1016/j.tet.2022.133180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Described here is the development of sequential cross-coupling, photoelectrocyclizations, and reductive dearomatizations of biaryl cyclohexenones as a means of synthesizing terpene skeletons. This methodology promises to provide insight that will enable us and others to use this approach to generate a variety of biologically active small molecules, including members of the abietane and morphinan skeletons.
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Affiliation(s)
| | - Xuchen Zhao
- Department of Chemistry University of Utah Salt Lake City, UT 84112
| | - Jon D Rainier
- Department of Chemistry University of Utah Salt Lake City, UT 84112
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4
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Deng Q, Gu J, Zhang H, Zhang Y, Meng X. Sustainable access to benzothiophene derivatives bearing a trifluoromethyl group via a three-component domino reaction in water. Org Biomol Chem 2022; 20:7424-7428. [PMID: 35822661 DOI: 10.1039/d2ob01034h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalyst-free three-component domino reaction was developed for the synthesis of benzothiophene fused pyrrolidones bearing a CF3 group for the first time. The notable advantages of this strategy over the existing methods include the use of water as a solvent at room temperature, transition metal-free conditions, a broad substrate scope, and easy scale-up synthesis. More importantly, the benzothiophene derivatives have been found to show potent anticancer activities using the Cell Counting Kit-8 (CCK-8) assay.
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Affiliation(s)
- Qingsong Deng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering Tianjin University of Technology, Tianjin 300384, P.R. China.
| | - Jun Gu
- The Affiliated Jiangsu Shengze Hospital of Nanjing Medical University, NO.1399 Shichang West Road, Suzhou 215228, China
| | - Huan Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering Tianjin University of Technology, Tianjin 300384, P.R. China.
| | - Youlai Zhang
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering Tianjin University of Technology, Tianjin 300384, P.R. China.
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering Tianjin University of Technology, Tianjin 300384, P.R. China.
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5
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Rao K, Chai Z, Zhou P, Liu D, Sun Y, Yu F. Transition-metal-free approach to quinolines via direct oxidative cyclocondensation reaction of N,N-dimethyl enaminones with o-aminobenzyl alcohols. Front Chem 2022; 10:1008568. [PMID: 36212061 PMCID: PMC9532769 DOI: 10.3389/fchem.2022.1008568] [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: 08/01/2022] [Accepted: 08/09/2022] [Indexed: 11/13/2022] Open
Abstract
A transition-metal-free method for the construction of 3-substituted or 3,4-disubstituted quinolines from readily available N,N-dimethyl enaminones and o-aminobenzyl alcohols is reported. The direct oxidative cyclocondensation reaction tolerates broad functional groups, allowing the efficient synthesis of various quinolines in moderate to excellent yields. The reaction involves a C (sp3)-O bond cleavage and a C=N bind and a C=C bond formation during the oxidative cyclization process, and the mechanism was proposed.
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6
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Liang T, Dong G, Li C, Xu X, Xu Z. Silver(I)-Catalyzed Reductive Cross-Coupling of Aldehydes to Structurally Diverse Cyclic and Acyclic Ethers. Org Lett 2022; 24:1817-1821. [DOI: 10.1021/acs.orglett.2c00270] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ting Liang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Guichao Dong
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Chuang Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Xin Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
| | - Zhou Xu
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou 221004, China
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7
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Wu N, Li C, Dong G, Jiang M, Xu Z. Silver( i)-catalyzed oxidative coupling of hydrosilanes with DMF to symmetrical and unsymmetrical disiloxanes. NEW J CHEM 2022. [DOI: 10.1039/d1nj05617d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An alternative route to symmetrical and unsymmetrical disiloxanes, utilizing a 0.5% AgNTf2 catalyst to enable oxidative coupling of hydrosilanes with DMF as an oxygen source, is reported.
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Affiliation(s)
- Nan Wu
- Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
| | - Chuang Li
- Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
| | - Guichao Dong
- Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
| | - Mengfei Jiang
- Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
| | - Zhou Xu
- Key Laboratory of New Drug Research and Clinical Pharmacy, School of Pharmacy, Xuzhou Medical University, Tongshan Road 209, Xuzhou, 221004, China
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8
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Dubrawski ZS, Chang CY, Carr CR, Gelfand BS, Piers WE. Electrocatalyst decomposition pathways: torsional strain in a second sphere proton relay shuts off CO 2RR in a Re(2,2′-bipyridyl)(CO) 3X type electrocatalyst. Dalton Trans 2022; 51:17381-17390. [DOI: 10.1039/d2dt02876j] [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
Group 7 tris(carbonyl) bipyridine complexes have been well explored as important CO2 reduction reaction (CO2RR) electrocatalysts and now represent an excellent platform for catalyst design.
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Affiliation(s)
- Zachary S. Dubrawski
- University of Calgary, Department of Chemistry, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
| | - Chia Yun Chang
- University of Calgary, Department of Chemistry, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
| | - Cody R. Carr
- University of Calgary, Department of Chemistry, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
| | - Benjamin S. Gelfand
- University of Calgary, Department of Chemistry, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
| | - Warren E. Piers
- University of Calgary, Department of Chemistry, 2500 University Drive N.W., Calgary, Alberta, T2N 1N4, Canada
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9
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Zhang M, Han B, Ma H, Zhao L, Wang J, Zhang Y. Hydrosilanes as Hydrogen Source: Iridium-Catalyzed Hydrogenation of N-Heteroarenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Wu L, Tang SY, Zhou S. Computational Study on Homolytic Bond Energies of the Ag-X (X = C, O, and H) Complexes and Hammett-Type Analysis of Reactivity. ACS OMEGA 2021; 6:34904-34911. [PMID: 34963973 PMCID: PMC8697619 DOI: 10.1021/acsomega.1c05563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 11/18/2021] [Indexed: 06/14/2023]
Abstract
Thirty-seven calculation methods were benchmarked against the available experimental bond lengths and energies data regarding the Ag-X bonds. The theoretical protocol PBE0/VDZ//ωB97x-D/mVTZ was found to be capable of accurately predicting the homolytic bond dissociation energies (BDEs) of Ag-X complexes with a precision of 1.9 kcal/mol. With the available method in hand, a wide range of different Ag-X BDEs were estimated. BDE(Ag-CH2X), BDE(Ag-PhX), BDE(Ag-OPhX), and BDE(Ag-OCOPhX) (X = NH2, OMe, Me, H, Cl, and NO2) were found to be in the ranges of 27-47, 51-54, 19-39, and 64-70 kcal/mol, respectively. Subsequently, Hammett-type analysis was carried out with reactivity parameters. Good positive linear relationships were found for BDE of Ag-O bands and decarboxylation barriers of Ag-OCOPhX with the Hammett constant σ. It suggested that electron-donating substituents could promote either the homolytic cleavage of the Ag-OPhX bond to undergo a radical process or Ag-OCOPhX decarboxylation. Moreover, ligand effects on Ag-H bonds were investigated using BDE(Ag-H) and related NPA charges on Ag. In the case of P-ligands, carbene ligands, and other small molecule ligands (i.e., CO, CO2, and H2O), a good negative linear relationship was found. In contrast, N-ligands could have a reverse effect. Understanding the intrinsic relationships of BDE(Ag-X) with related reactivity parameters might help gain insights into the structure-reactivity relationships in Ag-X-assisted C-H activation/decarboxylation.
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Affiliation(s)
- Lei Wu
- Zhejiang
Provincial Key Laboratory of Advanced Chemical Engineering Manufacture
Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
- SINOPEC
Research Institute of Safety Engineering, Qingdao 266000, P. R. China
- State
Key Laboratory of Safety and Control for Chemicals, Qingdao 266000, P. R. China
| | - Shi-Ya Tang
- SINOPEC
Research Institute of Safety Engineering, Qingdao 266000, P. R. China
- State
Key Laboratory of Safety and Control for Chemicals, Qingdao 266000, P. R. China
| | - Shaodong Zhou
- Zhejiang
Provincial Key Laboratory of Advanced Chemical Engineering Manufacture
Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
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11
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Zhang S, Xu H, He J, Zhang Y. Application of Mutualism in Organic Synthetic Chemistry: Mutually Promoted C−H Functionalization of Indole and Reduction of Quinoline. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sutao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry Jilin University Changchun Jilin 130012 People's Republic of China
| | - Hai Xu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry Jilin University Changchun Jilin 130012 People's Republic of China
| | - Jianghua He
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry Jilin University Changchun Jilin 130012 People's Republic of China
| | - Yuetao Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry Jilin University Changchun Jilin 130012 People's Republic of China
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12
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Ouyang L, Xia Y, Liao J, Miao R, Yang X, Luo R. Iridium Complex-Catalyzed Transfer Hydrogenation of N-Heteroarenes and Tentative Asymmetric Synthesis. ACS OMEGA 2021; 6:10415-10427. [PMID: 34056194 PMCID: PMC8153796 DOI: 10.1021/acsomega.1c00868] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 03/25/2021] [Indexed: 05/03/2023]
Abstract
An iridium-catalyzed transfer hydrogenation of N-heteroarenes to access a series of substituted 1,2,3,4-tetrahydroquinoline derivatives in excellent yields is disclosed. This transformation is distinguished with water-soluble and air-stable iridium complexes as the catalyst, formic acid as the hydrogen source, mild reaction conditions, and broad functional group compatibility. Most importantly, a tentative chiral N,N-chelated Cp*Ir(III) complex-catalyzed enantioselective transfer hydrogenation is also presented, affording chiral products in excellent yields and good enantioselectivities.
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13
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Chen S, Yang L, Shang Y, Mao J, Walsh PJ. Base-Promoted Tandem Synthesis of 2-Azaaryl Tetrahydroquinolines. Org Lett 2021; 23:1594-1599. [DOI: 10.1021/acs.orglett.0c04306] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shuguang Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th St., Philadelphia, Pennsylvania 19104, United States
| | - Langxuan Yang
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th St., Philadelphia, Pennsylvania 19104, United States
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Jianyou Mao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China
| | - Patrick J. Walsh
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S 34th St., Philadelphia, Pennsylvania 19104, United States
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14
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Abstract
Reactions in water have demonstrated numerous surprising results. The effects
of water in these reactions may include significant physical and chemical interactions with
the substrates and catalysts through polar effects and hydrogen bonding ability. In some
instances, water is also able to interact with the intermediates of reactions and possibly
with the transition states of chemical processes. Organic synthesis in water encourages the
researchers to follow the principles of green chemistry. Among heterocyclic compounds,
quinoline scaffold has become an important motif for the development of new
drugs. They are widely found in pharmaceuticals as well as in agrochemical industry. Over
the last few decades, numerous reports have been documented to access quinoline derivatives
with structural diversity, either by new annulation or by ring functionalization. This review summarizes an
overview of the synthesis and functionalisation of quinoline scaffolds in an aqueous medium. This method may
encourage researchers to adopt green chemistry and to apply these environmentally safe methods in designing
important heterocyclic cores.
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Affiliation(s)
- Gongutri Borah
- Chemical science and technology división, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
| | - Preetishmita Borah
- Agrionics, v1(a), CSIR-Central Scientific Instruments Organisation, Sector 30C, Chandigarh, 160030, India
| | - Arnav Bhuyan
- Chemical science and technology división, CSIR-North East Institute of Science and Technology, Jorhat, Assam, 785006, India
| | - Bimal Krishna Banik
- Research Development & College of Natural Sciences and Human Studies, Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia
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15
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Arevalo R, López R, Falvello LR, Riera L, Perez J. Building C(sp 3 ) Molecular Complexity on 2,2'-Bipyridine and 1,10-Phenanthroline in Rhenium Tricarbonyl Complexes. Chemistry 2021; 27:379-389. [PMID: 33001533 DOI: 10.1002/chem.202003814] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/12/2020] [Indexed: 12/21/2022]
Abstract
The reactions of [Re(N-N)(CO)3 (PMe3 )]OTf (N-N=2,2'-bipyridine, bipy; 1,10-phenanthroline, phen) compounds with tBuLi and with LiHBEt3 have been explored. Addition to the N-N chelate took place with different site-selectivity depending on both chelate and nucleophile. Thus, with tBuLi, an unprecedented addition to C5 of bipy, a regiochemistry not accessible for free bipy, was obtained, whereas coordinated phen underwent tBuLi addition to C2 and C4. Remarkably, when LiHBEt3 reacted with [Re(bipy)(CO)3 (PMe3 )]OTf, hydride addition to the 4 and 6 positions of bipy triggered an intermolecular cyclodimerization of two dearomatized pyridyl rings. In contrast, hydride addition to the phen analog resulted in partial reduction of one pyridine ring. The resulting neutral ReI products showed a varied reactivity with HOTf and with MeOTf to yield cationic complexes. These strategies rendered access to ReI complexes containing bipy- and phen-derived chelates with several C(sp3 ) centers.
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Affiliation(s)
- Rebeca Arevalo
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain.,Current address: Department of Chemistry and Chemical Biology, University of California, Merced, 5200 N. Lake Road, 95343, Merced, CA, USA
| | - Ramón López
- Departamento de Química Física y Analítica, Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain
| | - Larry R Falvello
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, 50009, Zaragoza, Spain
| | - Lucía Riera
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain.,Centro de Investigación en Nanomateriales y Nanotecnología-CINN, CSIC- Universidad de Oviedo-Principado de Asturias, Avda. de la Vega 4-6, 33940, El Entrego, Spain
| | - Julio Perez
- Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo, Julián Clavería, 8, 33006, Oviedo, Spain.,Centro de Investigación en Nanomateriales y Nanotecnología-CINN, CSIC- Universidad de Oviedo-Principado de Asturias, Avda. de la Vega 4-6, 33940, El Entrego, Spain
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16
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Gong Y, He J, Wen X, Xi H, Wei Z, Liu W. Transfer hydrogenation of N-heteroarenes with 2-propanol and ethanol enabled by manganese catalysis. Org Chem Front 2021. [DOI: 10.1039/d1qo01552d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A convenient well-defined manganese catalyzed transfer hydrogenation of N-heteroarenes using 2-propanol and ethanol as hydrogen sources is developed. DFT calculations support an outer sphere hydrogenation mechanism.
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Affiliation(s)
- Yingjie Gong
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Jingxi He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Xiaoting Wen
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Hui Xi
- Key Laboratory of Tobacco Flavor Basic Research of CNTC, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Zhihong Wei
- Institute of Molecular Science, Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Shanxi University, Taiyuan 030006, P. R. China
| | - Weiping Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
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17
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Di Filippo M, Baumann M. Continuous Flow Synthesis of Quinolines via a Scalable Tandem Photoisomerization‐Cyclization Process. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000957] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mara Di Filippo
- School of Chemistry University College Dublin Science Centre South D04 N2E2 Belfield Dublin Ireland
| | - Marcus Baumann
- School of Chemistry University College Dublin Science Centre South D04 N2E2 Belfield Dublin Ireland
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18
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Huang R, Cao C, Liu J, Zheng L, Zhang Q, Gu L, Jiang L, Song W. Integration of Metal Single Atoms on Hierarchical Porous Nitrogen-Doped Carbon for Highly Efficient Hydrogenation of Large-Sized Molecules in the Pharmaceutical Industry. ACS APPLIED MATERIALS & INTERFACES 2020; 12:17651-17658. [PMID: 32208606 DOI: 10.1021/acsami.0c03452] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Single-atom catalysts (SACs) often exhibit superior activity and selectivity in heterogeneous catalysis because of their maximized atom utilization and unique coordination environments. However, most reported studies about SACs in heterogeneous catalysis focus on model reactions with simple molecules. In addition, many reported single atoms are confined in microporous structures, hindering the mass transfer of molecules with large sizes, thus limiting their practical applications in industry. In this study, we report a molten salt-assisted method to synthesize metal single atoms anchored on a hierarchical porous nitrogen-doped carbon support (denoted as M1/h-NC, M includes Co, Fe, Ni, Mn, and Cu). Taking Co1/h-NC as an example, compared to the control sample which has Co single atoms being encapsulated in a microporous N-doped carbon support (denoted as Co1/m-NC), Co1/h-NC exhibits significantly higher catalytic activity in the selective hydrogenation of large-sized pharmaceutical molecules, such as nimodipine (calcium channel blocker) and 2-(3',4'-methylenedioxyphenylethyl)quinoline (antispasmodic natural alkaloid intermediate). The superior catalytic performance of Co1/h-NC is directly ascribed to the integration of the advantages of single-atom active sites and hierarchical mesoporous structure, which is beneficial for the mass transfer of molecules with large sizes and enables nearly all the Co single atoms to be accessible for catalytic reactions.
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Affiliation(s)
- Runkun Huang
- National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Changyan Cao
- National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jian Liu
- National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Lin Gu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Weiguo Song
- National Laboratory for Molecular Sciences, CAS Research/Education Center for Excellence in Molecular Sciences, CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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Leng Y, Du S, Feng G, Sang X, Jiang P, Li H, Wang D. Cobalt-Polypyrrole/Melamine-Derived Co-N@NC Catalysts for Efficient Base-Free Formic Acid Dehydrogenation and Formylation of Quinolines through Transfer Hydrogenation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:474-483. [PMID: 31802662 DOI: 10.1021/acsami.9b14839] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
It is highly desired but remains a great challenge to develop non-noble metal heterogeneous catalysts to supersede noble metal catalysts for formic acid (FA) dehydrogenation and the corresponding transfer hydrogenation reactions. Herein, we developed a simple and feasible melamine-assisted pyrolysis strategy for the preparation of atomic cobalt-nitrogen (Co-N)-anchored mesoporous carbon with high metal loading (>6.8 wt %) and high specific surface area (750 m2 g-1). Systematic investigation reveals that both the organic carbon source polypyrrole and the nitrogen source melamine are crucial for the successful generation of such Co-N-based materials. The obtained samples (Co-N)n@NC were demonstrated to be highly efficient and robust catalysts for FA dehydrogenation and formylation of quinolines through transfer hydrogenation, exhibiting a very high hydrogen production rate of 16 451 mL·gCo-1·h-1 for FA dehydrogenation and affording excellent yields (up to 99%), selectivity (up to 98%), and stability for transfer hydrogenation. This work may provide a promising route for the fabrication of more low-cost metal-nitrogen catalysts for green fine chemical synthesis.
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Affiliation(s)
- Yan Leng
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Shengyu Du
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Guodong Feng
- Key Lab of Advanced Molecular Engineering Materials , Baoji University of Arts and Science , Baoji 721013 , China
| | - Xinxin Sang
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Pingping Jiang
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Hui Li
- School of Pharmaceutical Science , Jiangnan University , Wuxi , Jiangsu 214122 , China
| | - Dawei Wang
- School of Chemical and Material Engineering , Jiangnan University , Wuxi , Jiangsu 214122 , China
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