1
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Tong Y, Wu Y, Nie L, Jiang L, Zhou Q. High enrichment and measurement of heterocyclic aromatic hydrocarbons from environmental waters with magnetic resorcinol-formaldehyde nanocomposites coupled with high performance liquid chromatography. Talanta 2024; 273:125864. [PMID: 38452592 DOI: 10.1016/j.talanta.2024.125864] [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: 11/13/2023] [Revised: 01/26/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
Heterocyclic aromatic hydrocarbons are concerned pollutants with carcinogenic toxicity, which exist universally in various environmental matrices and have great harm to environmental and human health. In present work, magnetic resorcinol-formaldehyde composites (Fe3O4@SiO2@R-F) were fabricated via aldol condensation reaction under alkaline condition. The prepared magnetic materials were examined and analyzed with Fourier transform infrared spectroscopy and other related instruments. The Fe3O4@SiO2@R-F composites were utilized to develop an efficient magnetic solid phase extraction (MSPE) method for extracting six heteropolyclic aromatic hydrocarbons from environmental water samples including carbazole (CB), 7-methylquinoline (7-MQL), 9-methylcarbazole (9-MCB), dibenzothiophene (DBT), 4-methyldibenzothiophene (4-MDBT), and 4,6-dimethyldibenzothiophene (4,6-DMDBT). The analytes were analyzed by high performance liquid chromatography-ultraviolet variable wavelength detector (HPLC-VWD). The main factors affecting MSPE were optimized. With the optimal parameters, 9-MCB and 4-MDBT have good linearity over the concentration range of 0.1-300 μg L-1, and 7-MQL, CB, DBT and 4,6-DMDBT have good linearity over the concentration range of 0.5-300 μg L-1. The limits of detection were over the concentration range of 0.012-0.031 μg L-1. This method was successfully employed to measure real waters, and the spiked recoveries ranged from 89.4% to 99.9%. The results confirmed that the developed method was reliable, robust and could be employed as a usefully alternate way for analyzing such pollutants in waters.
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Affiliation(s)
- Yayan Tong
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Yalin Wu
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China; Beijing Municipal Research Institute of Eco-Environmental Protection, Beijing, 100037, China
| | - Linchun Nie
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Liushan Jiang
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China
| | - Qingxiang Zhou
- College of Chemical Engineering and Environment, China University of Petroleum-Beijing, Beijing, 102249, China.
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2
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Hatakenaka R, Nishikawa N, Mikata Y, Aoyama H, Yamashita K, Shiota Y, Yoshizawa K, Kawasaki Y, Tomooka K, Kamijo S, Tani F, Murafuji T. Efficient Synthesis and Structural Analysis of Chiral 4,4'-Biazulene. Chemistry 2024; 30:e202400098. [PMID: 38376431 DOI: 10.1002/chem.202400098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 02/21/2024]
Abstract
4,4'-Biazulene is a potentially attractive key component of an axially chiral biaryl compound, however, its structure and properties have not been clarified owing to the lack of its efficient synthesis. We report a breakthrough in the reliable synthesis of 4,4'-biazulene, which is achieved by the access to azulen-4-ylboronic acid pinacol ester and 4-iodoazulene as novel key synthetic intermediates for the Suzuki-Miyaura cross-coupling reaction. The X-ray crystallographic analysis of 4,4'-biazulene confirmed its axial chirality. The enantiomers of 4,4'-biazulene were successfully resolved by HPLC on the chiral stationary phase column. The kinetic experiments and DFT calculations indicate that the racemization energy barrier of 4,4'-biazulene is comparable to that of 1,1'-binaphthyl.
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Affiliation(s)
- Ryoji Hatakenaka
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Nanami Nishikawa
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Yuji Mikata
- Laboratory for Molecular & Functional Design, Department of Engineering, Nara Women's University, Nara, 630-8506, Japan
| | - Hiroki Aoyama
- Graduate School of Science, Kyushu University, Fukuoka, 819-0395, Japan
| | - Kohsuke Yamashita
- Graduate School of Engineering, Kyushu University, Fukuoka, 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yuuya Kawasaki
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
| | - Katsuhiko Tomooka
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, Fukuoka, 816-8580, Japan
| | - Shin Kamijo
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
| | - Fumito Tani
- Institute for Materials Chemistry and Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Toshihiro Murafuji
- Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi, 753-8512, Japan
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3
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Kehoe RA, Lowry A, Light ME, Jones DJ, Byrne PA, McGlacken GP. Regioselective Partial Hydrogenation and Deuteration of Tetracyclic (Hetero)aromatic Systems Using a Simple Heterogeneous Catalyst. Chemistry 2024; 30:e202400102. [PMID: 38214926 DOI: 10.1002/chem.202400102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 01/12/2024] [Accepted: 01/12/2024] [Indexed: 01/13/2024]
Abstract
The introduction of added '3-dimensionality' through late-stage functionalisation of extended (hetero)aromatic systems is a powerful synthetic approach. The abundance of starting materials and cross-coupling methodologies to access the precursors allows for highly diverse products. Subsequent selective partial reduction can alter the core structure in a manner of interest to medicinal chemists. Herein, we describe the precise, partial reduction of multicyclic heteroaromatic systems using a simple heterogeneous catalyst. The approach can be extended to introduce deuterium (again at late-stage). Excellent yields can be obtained using simple reaction conditions.
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Affiliation(s)
- Roberta A Kehoe
- School of Chemistry, Analytical and Biological Chemistry Research Facility, University College Cork, Robert Kane Building, Western Road, Cork
- Synthesis and Solid State Pharmaceutical Centre (SSPC), University of Limerick, Limerick
| | - Amy Lowry
- School of Chemistry, Analytical and Biological Chemistry Research Facility, University College Cork, Robert Kane Building, Western Road, Cork
| | - Mark E Light
- Department of Chemistry, University of, Southampton, SO17 1BJ, United Kingdom
| | - David J Jones
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph-Black Building, David Brewster Road, Edinburgh, EH9 3FJ, United Kingdom
| | - Peter A Byrne
- Synthesis and Solid State Pharmaceutical Centre (SSPC), University of Limerick, Limerick
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin Belfield, Dublin 4, Ireland
| | - Gerard P McGlacken
- School of Chemistry, Analytical and Biological Chemistry Research Facility, University College Cork, Robert Kane Building, Western Road, Cork
- Synthesis and Solid State Pharmaceutical Centre (SSPC), University of Limerick, Limerick
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4
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Rong N, Zhou A, Liang M, Wang SG, Yin Q. Asymmetric Hydrogenation of Racemic 2-Substituted Indoles via Dynamic Kinetic Resolution: An Easy Access to Chiral Indolines Bearing Vicinal Stereogenic Centers. J Am Chem Soc 2024; 146:5081-5087. [PMID: 38358355 DOI: 10.1021/jacs.4c00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
The asymmetric hydrogenation (AH) of N-unprotected indoles is a straightforward, yet challenging method to access biologically interesting NH chiral indolines. This method has for years been limited to 2/3-monosubstituted or 2,3-disubstituted indoles, which produce chiral indolines bearing endocyclic chiral centers. Herein, we have reported an innovative Pd-catalyzed AH of racemic α-alkyl or aryl-substituted indole-2-acetates using an acid-assisted dynamic kinetic resolution (DKR) process, affording a range of structurally fascinating chiral indolines that contain exocyclic stereocenters with excellent yields, diastereoselectivities, and enantioselectivities. Mechanistic studies support that the DKR process relies on a rapid interconversion of each enantiomer of racemic substrates, leveraged by an acid-promoted isomerization between the aromatic indole and nonaromatic exocyclic enamine intermediate. The reaction can be performed on a gram scale, and the products can be derivatized into non-natural β-amino acids via facile debenzylation and amino alcohol upon reduction.
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Affiliation(s)
- Nianxin Rong
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Ao Zhou
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
- Southern University of Science and Technology, Shenzhen, 518055, China
| | - Mingrong Liang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shou-Guo Wang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Qin Yin
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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5
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Williams S, Qi L, Cox RJ, Kumar P, Xiao J. Hydrogenation of functionalised pyridines with a rhodium oxide catalyst under mild conditions. Org Biomol Chem 2024; 22:1010-1017. [PMID: 38186335 DOI: 10.1039/d3ob01860a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Piperidines are one of the most widely used building blocks in the synthesis of pharmaceutical and agrochemical compounds. The hydrogenation of pyridines is a convenient method to synthesise such compounds as it only requires reactant, catalyst, and a hydrogen source. However, this reaction still remains difficult for the reduction of functionalised and multi-substituted pyridines. Here we report the use of a stable, commercially available rhodium compound, Rh2O3, for the reduction of various unprotected pyridines. The reaction only requires mild conditions, and the substrate scope is broad, making it practically useful.
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Affiliation(s)
- Sydney Williams
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK.
| | - Leiming Qi
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK.
| | - Robert J Cox
- Chemical Development, AstraZeneca, Silk Road Business Park, SK10 2NA, Macclesfield, UK
| | - Prashant Kumar
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK.
| | - Jianliang Xiao
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK.
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6
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Zhang C. Bisphospholane Josiphos-type Ligands in Rhodium Asymmetric Catalysis. Chem Asian J 2023; 18:e202300912. [PMID: 37843429 DOI: 10.1002/asia.202300912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2023] [Accepted: 10/16/2023] [Indexed: 10/17/2023]
Abstract
Asymmetric catalysis has become a universal and powerful method for constructing chiral compounds. In rhodium asymmetric catalysis, bisphospholane Josiphos-type ligands and their rhodium complexes are receiving increasing attention. This review provides comprehensive information on the bisphospholane Josiphos-type ligands in rhodium asymmetric catalysis. The scope of the literature covers from 2013 to now. The application of bisphospholane Josiphos-type ligands in rhodium asymmetric catalysis is summarized as follows: (i) asymmetric addition to C(sp2 )-C(sp2 ) bonds, (ii) asymmetric addition to C(sp2 )-C(sp) bonds of allenes, (iii) asymmetric hydrogenation of C(sp2 )-N bonds, C(sp2 )-O bonds and pyridinium salts, and (iv) asymmetric silanization of C-H and O-H bonds.
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Affiliation(s)
- Cai Zhang
- Department of Safety Supervision and Management, Chongqing Vocational Institute of Safety Technology, 583 Anqing road, Wanzhou district, Chongqing, 404020, China
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7
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Liu DH, Nagashima K, Liang H, Yue XL, Chu YP, Chen S, Ma J. Chemoselective Quinoline and Isoquinoline Reduction by Energy Transfer Catalysis Enabled Hydrogen Atom Transfer. Angew Chem Int Ed Engl 2023; 62:e202312203. [PMID: 37803457 DOI: 10.1002/anie.202312203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/08/2023]
Abstract
(Hetero)arene reduction is one of the key avenues for synthesizing related cyclic alkenes and alkanes. While catalytic hydrogenation and Birch reduction are the two broadly utilized approaches for (hetero)arene reduction across academia and industry over the last century, both methods have encountered significant chemoselectivity challenges. We hereby introduce a highly chemoselective quinoline and isoquinoline reduction protocol operating through selective energy transfer (EnT) catalysis, which enables subsequent hydrogen atom transfer (HAT). The design of this protocol bypasses the conventional metric of reduction reaction, that is, the reductive potential, and instead relies on the triplet energies of the chemical moieties and the kinetic barriers of energy and hydrogen atom transfer events. Many reducing labile functional groups, which were incompatible with previous (hetero)arene reduction reactions, are retained in this reaction. We anticipate that this protocol will trigger the further advancement of chemoselective arene reduction and enable the current arene-rich drug space to escape from flatland.
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Affiliation(s)
- De-Hai Liu
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering and Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Kyogo Nagashima
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St., Oberlin, Ohio 44074, USA
| | - Hui Liang
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering and Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xue-Lin Yue
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering and Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yun-Peng Chu
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering and Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shuming Chen
- Department of Chemistry and Biochemistry, Oberlin College, 119 Woodland St., Oberlin, Ohio 44074, USA
| | - Jiajia Ma
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering and Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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8
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Dahiya P, Garg N, Poli R, Sundararaju B. Hydrogenation and dehydrogenation of N-heterocycles under Cp*Co(III)-catalysis. Dalton Trans 2023; 52:14752-14756. [PMID: 37814805 DOI: 10.1039/d3dt03161f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
To realize the goal of a carbon-free energy economy, it is crucial to discover reactions that utilize sustainable resources as alternatives to fossil feedstocks. In this study, a well-defined, air-stable Cp*Co(III)-catalyst for transfer hydrogenation of quinoline derivatives and oxidative dehydrogenation of cyclic amines in water is developed. While the former reaction is promoted by formic acid as a transfer hydrogenation reagent, the latter is mediated by molecular oxygen as the sole oxidant. These processes provide new avenues for the investigation of air-stable cobalt catalysts for environmentally benign hydrogenation and dehydrogenation reactions.
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Affiliation(s)
- Pardeep Dahiya
- Department of chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India - 208 016.
| | - Nidhi Garg
- Department of chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India - 208 016.
| | - Rinaldo Poli
- CNRS, LCC (Laboratoire de Chimie de Coordination), Université de Toulouse, UPS, INPT, 205 Route de Narbonne, BP 44099, F-31077, Toulouse Cedex 4, France
- Institut Universitaire de France, 1, rue Descartes, 75231 Paris Cedex 05, France
| | - Basker Sundararaju
- Department of chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India - 208 016.
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9
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Xie C, Xiao G, Guo Q, Wu X, Zi G, Ding W, Hou G. Highly enantioselective Rh-catalyzed asymmetric reductive dearomatization of multi-nitrogen polycyclic pyrazolo[1,5- a]pyrimidines. Chem Sci 2023; 14:9048-9054. [PMID: 37655036 PMCID: PMC10466315 DOI: 10.1039/d3sc02086j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 07/20/2023] [Indexed: 09/02/2023] Open
Abstract
A highly enantioselective rhodium-catalyzed reductive dearomatization of 7-substituted pyrazolo[1,5-a]pyrimidines has been realized for the first time by two strategies to afford chiral 4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidines with excellent enantioselectivities of up to 98% ee. This method also provides an efficient approach for the synthesis of the powerful BTK inhibitor, zanubrutinib.
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Affiliation(s)
- Chaochao Xie
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Guiying Xiao
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Qianling Guo
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Xiaoxue Wu
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Guofu Zi
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Wanjian Ding
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
| | - Guohua Hou
- Key Laboratory of Radiopharmaceuticals, College of Chemistry, Beijing Normal University No. 19 Xinjiekouwai St. Beijing 100875 China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
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10
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Xu A, Li C, Huang J, Pang H, Zhao C, Song L, You H, Zhang X, Chen FE. Highly enantioselective synthesis of both tetrahydroquinoxalines and dihydroquinoxalinones via Rh-thiourea catalyzed asymmetric hydrogenation. Chem Sci 2023; 14:9024-9032. [PMID: 37655018 PMCID: PMC10466277 DOI: 10.1039/d3sc00803g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/03/2023] [Indexed: 09/02/2023] Open
Abstract
Chiral tetrahydroquinoxalines and dihydroquinoxalinones represent the core structure of many bioactive molecules. Herein, a simple and efficient Rh-thiourea-catalyzed asymmetric hydrogenation for enantiopure tetrahydroquinoxalines and dihydroquinoxalinones was developed under 1 MPa H2 pressure at room temperature. The reaction was magnified to the gram scale furnishing the desired products with undamaged yield and enantioselectivity. Application of this methodology was also conducted successfully under continuous flow conditions. In addition, 1H NMR experiments revealed that the introduction of a strong Brønsted acid, HCl, not only activated the substrate but also established anion binding between the substrate and the ligand. More importantly, the chloride ion facilitated heterolytic cleavage of dihydrogen to regenerate the active dihydride species and HCl, which was computed to be the rate-determining step. Further deuterium labeling experiments and density functional theory (DFT) calculations demonstrated that this reaction underwent a plausible outer-sphere mechanism in this new catalytic transformation.
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Affiliation(s)
- Ana Xu
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Chaoyi Li
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Junrong Huang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Heng Pang
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Chengyao Zhao
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Lijuan Song
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Hengzhi You
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
| | - Xumu Zhang
- Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology Shenzhen 518055 China
| | - Fen-Er Chen
- School of Science, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Green Pharmaceutical Engineering Research Center, Harbin Institute of Technology (Shenzhen) Taoyuan Street, Nanshan District Shenzhen 518055 China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University Shanghai 200433 China
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11
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Mikhael M, Alektiar SN, Yeung CS, Wickens ZK. Translating Planar Heterocycles into Three-Dimensional Analogs by Photoinduced Hydrocarboxylation. Angew Chem Int Ed Engl 2023; 62:e202303264. [PMID: 37199340 PMCID: PMC10524292 DOI: 10.1002/anie.202303264] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/19/2023]
Abstract
The rapid preparation of complex three-dimensional (3D) heterocyclic scaffolds is a key challenge in modern medicinal chemistry. Despite the increased probability of clinical success for small molecule therapeutic candidates with increased 3D complexity, new drug targets remain dominated by flat molecules due to the abundance of coupling reactions available for their construction. In principle, heteroarene hydrofunctionalization reactions offer an opportunity to transform readily accessible planar molecules into more three-dimensionally complex analogs through the introduction of a single molecular vector. Unfortunately, dearomative hydrofunctionalization reactions remain limited. Herein, we report a new strategy to enable the dearomative hydrocarboxylation of indoles and related heterocycles. This reaction represents a rare example of a heteroarene hydrofunctionalization that meets the numerous requirements for broad implementation in drug discovery. The transformation is highly chemoselective, broad in scope, operationally simple, and readily amenable to high-throughput experimentation (HTE). Accordingly, this process will allow existing libraries of heteroaromatic compounds to be translated into diverse 3D analogs and enable exploration of new classes of medicinally relevant molecules.
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Affiliation(s)
- Myriam Mikhael
- Discovery Chemistry, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA 02115, United States
| | - Sara N. Alektiar
- Department of Chemistry, University of Wisconsin-Madison; Madison, Wisconsin, 53706, United States
| | - Charles S. Yeung
- Discovery Chemistry, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA 02115, United States
| | - Zachary K. Wickens
- Department of Chemistry, University of Wisconsin-Madison; Madison, Wisconsin, 53706, United States
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12
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Xu ZM, Hu Z, Huang Y, Bao SJ, Niu Z, Lang JP, Al-Enizi AM, Nafady A, Ma S. Introducing Frustrated Lewis Pairs to Metal-Organic Framework for Selective Hydrogenation of N-Heterocycles. J Am Chem Soc 2023. [PMID: 37384612 DOI: 10.1021/jacs.3c04929] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Hydrogenated nitrogen heterocyclic compounds play a critical role in the pharmaceutical, polymer, and agrochemical industries. Recent studies on partial hydrogenation of nitrogen heterocyclic compounds have focused on costly and toxic precious metal catalysts. As an important class of main-group catalysts, frustrated Lewis pairs (FLPs) have been widely applied in catalytic hydrogenation reactions. In principle, the combination of FLPs and metal-organic framework (MOF) is anticipated to efficiently enhance the recyclability performance of FLPs; however, the previously studied MOF-FLPs showed low reactivity in the hydrogenation of N-heterocycles compounds. Herein, we offer a novel P/B type MOF-FLP catalyst that was achieved via a solvent-assisted linker incorporation approach to boost catalytic hydrogenation reactions. Using hydrogen gas under moderate pressure, the proposed P/B type MOF-FLP can serve as a highly efficient heterogeneous catalyst for selective hydrogenation of quinoline and indole to tetrahydroquinoline and indoline-type drug compounds in high yield and excellent recyclability.
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Affiliation(s)
- Ze-Ming Xu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Zhuoyi Hu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Yali Huang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Shu-Jin Bao
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Zheng Niu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
| | - Jian-Ping Lang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, Jiangsu, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Abdullah M Al-Enizi
- Department of Chemistry, College of Science, King Saud University, Riyadh 1145, Saudi Arabia
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 1145, Saudi Arabia
| | - Shengqian Ma
- Department of Chemistry, University of North Texas, Denton, Texas 76201, United States
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Zhou B, Chandrashekhar VG, Ma Z, Kreyenschulte C, Bartling S, Lund H, Beller M, Jagadeesh RV. Development of a General and Selective Nanostructured Cobalt Catalyst for the Hydrogenation of Benzofurans, Indoles and Benzothiophenes. Angew Chem Int Ed Engl 2023; 62:e202215699. [PMID: 36636903 DOI: 10.1002/anie.202215699] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/11/2023] [Accepted: 01/12/2023] [Indexed: 01/14/2023]
Abstract
The selective hydrogenation of benzofurans in the presence of a heterogeneous non-noble metal catalyst is reported. The developed optimal catalytic material consists of cobalt-cobalt oxide core-shell nanoparticles supported on silica, which has been prepared by the immobilization and pyrolysis of cobalt-DABCO-citric acid complex on silica under argon at 800 °C. This novel catalyst allows for the selective hydrogenation of simple and functionalized benzofurans to 2,3-dihydrobenzofurans as well as related heterocycles. The versatility of the reported protocol is showcased by the reduction of selected drugs and deuteration of heterocycles. Further, the stability, recycling, and reusability of the Co-nanocatalyst are demonstrated.
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Affiliation(s)
- Bei Zhou
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | | | - Zhuang Ma
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Carsten Kreyenschulte
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Stephan Bartling
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Henrik Lund
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059, Rostock, Germany
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Piperidine Derivatives: Recent Advances in Synthesis and Pharmacological Applications. Int J Mol Sci 2023; 24:ijms24032937. [PMID: 36769260 PMCID: PMC9917539 DOI: 10.3390/ijms24032937] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Piperidines are among the most important synthetic fragments for designing drugs and play a significant role in the pharmaceutical industry. Their derivatives are present in more than twenty classes of pharmaceuticals, as well as alkaloids. The current review summarizes recent scientific literature on intra- and intermolecular reactions leading to the formation of various piperidine derivatives: substituted piperidines, spiropiperidines, condensed piperidines, and piperidinones. Moreover, the pharmaceutical applications of synthetic and natural piperidines were covered, as well as the latest scientific advances in the discovery and biological evaluation of potential drugs containing piperidine moiety. This review is designed to help both novice researchers taking their first steps in this field and experienced scientists looking for suitable substrates for the synthesis of biologically active piperidines.
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Sharma N, Sharma H, Kumar M, Grishina M, Pandit U, Poonam, Rathi B. Solvent-free mechanochemical grinding facilitates clean synthesis of N-substituted amines. Org Biomol Chem 2022; 20:6673-6679. [PMID: 35947022 DOI: 10.1039/d2ob01148d] [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
Herein, we have optimized a highly efficient and neat mechanochemical grinding procedure for the facile synthesis of N-substituted amines using easily available substituted halides and amines. The developed protocol is applicable for gram scale synthesis as well. Advantageous features of this strategy include mild and neat reaction conditions, a short reaction time at room temperature and isolation of products without column chromatography in excellent yields.
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Affiliation(s)
- Neha Sharma
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College, University of Delhi, Delhi, 110007, India.
| | - Himanshi Sharma
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College, University of Delhi, Delhi, 110007, India.
| | - Manoj Kumar
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College, University of Delhi, Delhi, 110007, India.
| | - Maria Grishina
- South Ural State University, Laboratory of Computational Modelling of Drugs, Pr. Lenina, 76 454080, Russia
| | - Unnat Pandit
- Special Centre for Systems Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Poonam
- Department of Chemistry, Miranda House, University of Delhi, Delhi-110007, India
| | - Brijesh Rathi
- Laboratory for Translational Chemistry and Drug Discovery, Department of Chemistry, Hansraj College, University of Delhi, Delhi, 110007, India.
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Ruthenium‐Catalyzed Enantioselective Hydrogenation of 9‐Phenanthrols. Angew Chem Int Ed Engl 2022; 61:e202205739. [DOI: 10.1002/anie.202205739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/07/2022]
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17
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Fan QH, Zhang SX, Xu C, Yi N, Li S, He YM, Feng Y. Ruthenium‐Catalyzed Enantioselective Hydrogenation of 9‐Phenanthrols. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qing-Hua Fan
- Institute of Chemistry, Chinese Academy of Sciences No.2 First North Street, Zhongguan Cun 100190 Beijing CHINA
| | - Shu-Xin Zhang
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Cong Xu
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Niannian Yi
- Institute of Chemistry CAS: Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Shan Li
- Institute of Chemistry CAS: Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Yan-Mei He
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
| | - Yu Feng
- Institute of Chemistry Chinese Academy of Sciences CAS key laboratory of molecular recognition and function 100190 Beijing CHINA
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