1
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Yang J, Wang Z, Zhang Y, Wang Y, Yao W, Gao K. gem-Difluoroalkylation of Cyclic Ethers Enabled by Cobalt-Catalyzed C(sp 3)-H Oxidation under Mild Conditions. Org Lett 2024; 26:6742-6747. [PMID: 39057194 DOI: 10.1021/acs.orglett.4c02458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2024]
Abstract
Fluorinated rings have emerged as privileged structural modules in the fields of drug discovery and materials research. The incorporation of fluorine atoms into aromatic rings or heterocycles can lead to significant improvements in the physicochemical and biological properties of small molecules, making them valuable components in the design of new drugs and functional materials. Herein, we presented a cobalt-catalyzed C-H oxidation/gem-difluorination cascade reaction of readily available cyclic ethers with difluoroenoxysilanes, affording a series of gem-difluorinated analogues with moderate to high yields. The obtained products as versatile fluoroalkyl building blocks were showcased through divergent-oriented transformations.
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Affiliation(s)
- Jingjie Yang
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Zhiming Wang
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Taizhou, Zhejiang 318000, People's Republic of China
| | - Yiheng Zhang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, People's Republic of China
| | - Yurong Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, People's Republic of China
| | - Weijun Yao
- School of Chemistry and Chemical Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, People's Republic of China
| | - Kai Gao
- Advanced Research Institute and School of Pharmaceutical Science, Taizhou University, Taizhou, Zhejiang 318000, People's Republic of China
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2
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Brahmachari G. Practice of green chemistry strategies in synthetic organic chemistry: a glimpse of our sincere efforts in green chemistry research. Chem Commun (Camb) 2024; 60:8153-8169. [PMID: 38978452 DOI: 10.1039/d4cc02249a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
This feature article summarises our recent contributions (2019-2023) in designing and developing a handful of promising organic transformations for accessing several diversely functionalised biologically relevant organic scaffolds, following the green chemistry principles, particularly focusing on the application of low-energy visible light, electrochemistry, ball-milling, ultrasound, and catalyst- and additive-free synthetic strategies.
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry, Visva-Bharati (a Central University), Santiniketan-731 235, West Bengal, India.
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3
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Wang S, Gao Y, Hu Y, Zhou J, Chen Z, Liu Z, Zhang Y. Direct annulation between glycine derivatives and thiiranes through photoredox/iron cooperative catalysis. Chem Commun (Camb) 2023; 59:12783-12786. [PMID: 37815520 DOI: 10.1039/d3cc04580c] [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
A visible-light-induced aerobic oxidative [2+3] cycloaddition reaction between glycine derivatives and thiiranes has been disclosed, which provides an efficient and atom-economical strategy for the rapid synthesis of thiazolidine-2-carboxylic acid derivatives and the post-modification of glycine-derived dipeptides under mild conditions with good yield and high diastereoselectivities. A preliminary mechanistic study favors a pathway involving a cooperative photoredox catalysis and iron catalysis.
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Affiliation(s)
- Shutao Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
| | - Yuan Gao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
| | - Yansong Hu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
| | - Jintao Zhou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
| | - Zhidang Chen
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
| | - Zhao Liu
- First Hospital of Lanzhou University, Lanzhou, P. R. China
| | - Yuan Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China.
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4
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Jiang C, Sha X, Ni C, Qin W, Zhu X, Wang S, Li X, Lu H. Visible-Light-Promoted Cross Dehydrogenative/Decarboxylative Coupling Cascades of Glycine Ester Derivatives and β-Keto Acids. J Org Chem 2022; 87:8744-8751. [PMID: 35708260 DOI: 10.1021/acs.joc.2c00149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A visible-light-induced dehydrogenative/decarboxylative coupling reaction of arylglycine derivatives and β-keto acids is described. This photocatalyst- and additive-free protocol can be applied in the efficient synthesis of γ-keto glycine derivatives under ambient conditions. Further uses of this methodology and a plausible mechanism are also demonstrated.
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Affiliation(s)
- Chunhui Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Xuefei Sha
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Cheng Ni
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Wei Qin
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Xuejie Zhu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Shan Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Xuan Li
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
| | - Hongfei Lu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212100, China
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5
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Hore S, Singh RP. Phosphorylation of arenes, heteroarenes, alkenes, carbonyls and imines by dehydrogenative cross-coupling of P(O)-H and P(R)-H. Org Biomol Chem 2021; 20:498-537. [PMID: 34904988 DOI: 10.1039/d1ob02003j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Organophosphorous compounds have recently emerged as a powerful class of compounds with widespread applications, such as in bioactive natural products, pharmaceuticals, agrochemicals and organic materials, and as ligands in catalysis. The preparation of these compounds requires synthetic techniques with novel catalytic systems varying from transition metal, photo- and electrochemical catalysis to transformations without metal catalysts. Over the past few decades, the addition of P-H bonds to alkenes, alkynes, arenes, heteroarenes and other unsaturated substrates in hydrophosphination and other related reactions via the above-mentioned catalytic processes has emerged as an atom economical approach to obtain organophosphorus compounds. In most of the catalytic cycles, the P-H bond is cleaved to yield a phosphorus-based radical, which adds onto the unsaturated substrate followed by reduction of the corresponding radical yielding the product.
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Affiliation(s)
- Soumyadip Hore
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi-110016, India.
| | - Ravi P Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi-110016, India.
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6
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Wang S, Ma S, Yang J, Li W, Li D, Yang J. Copper‐Phosphine Mediated Oxidative Phosphorylation of Aromatic Amines and P(OR)
3
under Aerobic Conditions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Shihaozhi Wang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Shidi Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Jiale Yang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Wenshuang Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Dianjun Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
| | - Jinhui Yang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering College of Chemistry and Chemical Engineering Ningxia University Yinchuan 750021 China
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7
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Zhao X, Li B, Xu J, Tang Q, Cai Z, Jiang X. Visible-Light-Driven Redox Neutral Direct C-H Amination of Glycine Derivatives and Peptides with N-Acyloxyphthalimides. Chemistry 2021; 27:12540-12544. [PMID: 34164860 DOI: 10.1002/chem.202101982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Indexed: 12/12/2022]
Abstract
A room temperature, visible-light-promoted and redox neutral direct C-H amination of glycine and peptides has been firstly accomplished by using N-acyloxyphthalimide or -succinimide as nitrogen-radical precursor. The present strategy provides ways to introduce functionalities such as N-acyloxyphthalimide or -succinimide specifically to terminal glycine segment of peptides. Herein, mild conditions and high functional-group tolerance allow the preparation of non-natural α-amino acids and modification of corresponding peptides in this way.
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Affiliation(s)
- Xiaoyun Zhao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Bai Li
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Jingyao Xu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Qinglin Tang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Zhengjun Cai
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Xianxing Jiang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
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8
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Zhu Z, Liu S, Hu Z, Xie Z, Tang J, Le Z. Visible‐Light‐Induced Aerobic Oxidative C
sp
3
−H Functionalization of Glycine Derivatives for 2‐Substituted Benzoxazoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100134] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhi‐Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Shan Liu
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Zhi‐Yu Hu
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Zong‐Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule Department of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 People's Republic of China
| | - Zhang‐Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry School of Chemistry Biology and Material Science East China University of Technology Nanchang 330013 People's Republic of China
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9
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Liu S, Zhu ZQ, Hu ZY, Tang J, Yuan E. Copper-catalyzed oxidative cyclization of glycine derivatives toward 2-substituted benzoxazoles. Org Biomol Chem 2021; 19:1616-1619. [PMID: 33533370 DOI: 10.1039/d0ob02490b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel and straightforward intramolecular cyclization of glycine derivatives to 2-substituted benzoxazoles through copper-catalyzed oxidative C-H/O-H cross-coupling was described. A variety of glycine derivatives involving short peptides underwent cross-dehydrogenative-coupling readily to afford diverse 2-substituted benzoxazoles. The synthetic method has the advantages of simple operation, broad substrate scope and mild reaction conditions, thus providing an alternative effective approach for benzoxazole construction.
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Affiliation(s)
- Shan Liu
- Jiangxi Province Key Laboratory of Synthetic chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China.
| | - Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China.
| | - Zhi-Yu Hu
- Jiangxi Province Key Laboratory of Synthetic chemistry, School of Chemistry, Biology and Material Science, East China University of Technology, Nanchang 330013, China.
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule, Department of Chemistry and chemical engineering, Jiangxi Normal University, Nanchang 330022, China
| | - En Yuan
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, China
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10
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Nadiveedhi M, Nuthalapati P, Gundluru M, Yanamula MR, Kallimakula SV, Pasupuleti VR, Avula VKR, Vallela S, Zyryanov GV, Balam SK, Cirandur SR. Green Synthesis, Antioxidant, and Plant Growth Regulatory Activities of Novel α-Furfuryl-2-alkylaminophosphonates. ACS OMEGA 2021; 6:2934-2948. [PMID: 33553912 PMCID: PMC7860093 DOI: 10.1021/acsomega.0c05302] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/18/2020] [Indexed: 05/05/2023]
Abstract
A series of novel α-furfuryl-2-alkylaminophosphonates have been efficiently synthesized from the one-pot three-component classical Kabachnik-Fields reaction in a green chemical approach by addition of an in situ generated dialkylphosphite to Schiff's base of aldehydes and amines by using environmental and eco-friendly silica gel supported iodine as a catalyst by microwave irradiation. The advantage of this protocol is simplicity in experimental procedures and products were resulted in high isolated yields. The synthesized α-furfuryl-2-alkylaminophosphonates were screened to in vitro antioxidant and plant growth regulatory activities and some are found to be potent with antioxidant and plant growth regulatory activities. These in vitro studies have been further supported by ADMET (absorption, distribution, metabolism, excretion, and toxicity), quantitative structure-activity relationship, molecular docking, and bioactivity studies and identified that they were potentially bound to the GLN340 amino acid residue in chain C of 1DNU protein and TYR597 amino acid residue in chain A of 4M7E protein, causing potential exhibition of antioxidant and plant growth regulatory activities. Eventually, title compounds are identified as good blood-brain barrier (BBB)-penetrable compounds and are considered as proficient central nervous system active and neuroprotective antioxidant agents as the neuroprotective property is determined with BBB penetration thresholds.
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Affiliation(s)
| | - Poojith Nuthalapati
- Sri
Ramachandra Institute of Higher Education and Research, Chennai 600116, Tamil Nadu, India
| | - Mohan Gundluru
- Department
of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
- DST-PURSE
Centre, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Mohan Reddy Yanamula
- Department
of Biotechnology, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | | | - Visweswara Rao Pasupuleti
- Department
of Biomedical Sciences and Therapeutics, Faculty of Medicine and Health
Sciences, Universiti Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia
| | - Vijaya Kumar Reddy Avula
- Chemical
Engineering Institute, Ural Federal University, Yekaterinburg 620002, Russian Federation
| | - Swetha Vallela
- Chemical
Engineering Institute, Ural Federal University, Yekaterinburg 620002, Russian Federation
| | - Grigory Vasilievich Zyryanov
- Chemical
Engineering Institute, Ural Federal University, Yekaterinburg 620002, Russian Federation
- Ural
Division of the Russian Academy of Sciences, I. Ya. Postovskiy Institute of Organic Synthesis, 22 S. Kovalevskoy Street, Yekaterinburg 620219, Russian Federation
| | - Satheesh Krishna Balam
- Department
of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
| | - Suresh Reddy Cirandur
- Department
of Chemistry, Sri Venkateswara University, Tirupati 517502, Andhra Pradesh, India
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11
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Huang Y, Chen Q. Recent Advances in C(sp 3)—H Phosphorylation Based on Secondary Phosphine Oxides and Phosphite Esters. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107044] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Zhu ZQ, Guo D, Ji JJ, Zhu X, Tang J, Xie ZB, Le ZG. Visible-Light-Induced Dehydrogenative Imidoylation of Imidazo[1,2- a]pyridines with α-Amino Acid Derivatives and α-Amino Ketones. J Org Chem 2020; 85:15062-15071. [PMID: 33135893 DOI: 10.1021/acs.joc.0c01940] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new and efficient visible-light-promoted dehydrogenative cross-coupling reaction of imidazo[1,2-a]pyridines with α-amino carbonyl compounds toward imidoyl imidazo[1,2-a]pyridines is developed. A diverse range of imidazo[1,2-a]pyridines undergoes the dehydrogenative imidoylation smoothly with α-amino carbonyl compounds to access the corresponding products in satisfactory yields. We have also proposed the possible reaction mechanism based on preliminary mechanistic studies. The synthetic method has the advantages of wide substrate scope, good functional tolerance, and mild reaction conditions, which make this transformation more practical and sustainable.
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Affiliation(s)
- Zhi-Qiang Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Dong Guo
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Jiu-Jian Ji
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Xiao Zhu
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule, Department of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Zong-Bo Xie
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
| | - Zhang-Gao Le
- Jiangxi Province Key Laboratory of Synthetic Chemistry, School of Chemistry, Biology and Materials Science, East China University of Technology, Nanchang 330013, China
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13
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Lim T, Kim BM. Synthesis of α-Aminophosphonates via Phosphonylation of an Aryne-Imine Adduct. J Org Chem 2020; 85:13246-13255. [PMID: 32924484 DOI: 10.1021/acs.joc.0c01410] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multicomponent phosphonylation is accomplished upon the reaction of an imine with an aryne generated in situ in the presence of a dialkyl phosphite. This transition-metal-free protocol shows a broad substrate scope, providing a variety of α-aminophosphonates in moderate to good yields. A plausible mechanism for the reaction is proposed based on a deuterium exchange experiment.
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Affiliation(s)
- Taehyun Lim
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Byeong Moon Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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14
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Brahmachari G. Catalyst‐ and Additive‐Free Decarboxylative C‐4 Phosphorylation of Coumarin‐3‐Carboxylic Acids at Ambient Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001054] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis Department of Chemistry Visva-Bharati (A Central University) Santiniketan 731 235 West Bengal India
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15
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Cascade cyclization of glycine derivatives with β-ketoesters for polysubstituted 1,4-dihydropyridines by visible light photoredox catalysis. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Yi N, Ouyang M, Liu H, Yan M, Wen X, Xiong Y, Yi B. Thiocyanation of α-amino carbonyl compounds for the synthesis of aromatic thiocyanates. JOURNAL OF CHEMICAL RESEARCH 2020. [DOI: 10.1177/1747519820923553] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A procedure for K2S2O8-mediated thiocyanation of α-amino carbonyl compounds has been developed for the synthesis of aromatic thiocyanates. A series of α-amino carbonyl compounds have been investigated, and the desired products are obtained in 74%–93% yields. This strategy has the advantages of simple reaction conditions without use of a transition-metal catalyst, high regioselectivity, and high efficiency. Moreover, we found that arylamine thiocyanates can also be obtained from α-amino carbonyl compounds and potassium thiocyanate in the presence of CoCl2·6H2O, I2, and dimethyl sulfoxide through the cleavage of the C–N bond. To explore the reaction mechanism, we designed several control experiments and proposed a possible mechanism using the experimental results and related literature reports.
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Affiliation(s)
- Niannian Yi
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Mingjing Ouyang
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Huimin Liu
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Miao Yan
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Xiaoyong Wen
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Yi Xiong
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
| | - Bing Yi
- Hunan Provincial Key Laboratory of Environmental Catalysis and Waste Recycling, College of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, P.R. China
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17
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Wang J, Deng G, Liu C, Chen Z, Yu K, Chen W, Zhang H, Yang X. Transition Metal‐Free Synthesis of α‐Aminophosphine Oxides through C(
sp
3
)−P Coupling of 2‐Azaallyls. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901553] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Jing Wang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Guogang Deng
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Chunxiang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Zhuo Chen
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Kaili Yu
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
| | - Xiaodong Yang
- Key Laboratory of Medicinal Chemistry for Natural Resources, Ministry of Education and Yunnan Province, School of Chemical Science and TechnologyYunnan University Kunming 650091 People's Republic of China
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18
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Walęcka-Kurczyk A, Walczak K, Kuźnik A, Stecko S, Październiok-Holewa A. The Synthesis of α-Aminophosphonates via Enantioselective Organocatalytic Reaction of 1-( N-Acylamino)alkylphosphonium Salts with Dimethyl Phosphite. Molecules 2020; 25:E405. [PMID: 31963713 PMCID: PMC7024258 DOI: 10.3390/molecules25020405] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/14/2020] [Accepted: 01/16/2020] [Indexed: 02/06/2023] Open
Abstract
α-Aminophosphonic acids are phosphorus analogues of α-amino acids. Compounds of this type find numerous applications in medicine and crop protection due to their unique biological activities. A crucial factor in these activities is the configuration of the stereoisomers. Only a few methods of stereoselective transformation of α-amino acids into their phosphorus analogues are known so far and all of them are based on asymmetric induction, thus involving the use of a chiral substrate. In contrast, we have focused our efforts on the development of an effective method for this type of transformation using a racemic mixture of starting N-protected α-amino acids and a chiral catalyst. Herein, a simple and efficient stereoselective organocatalytic α-amidoalkylation of dimethyl phosphite by 1-(N-acylamino)alkyltriphenylphosphonium salts to enantiomerically enriched α-aminophosphonates is reported. Using 5 mol% of chiral quinine- or hydroquinine-derived quaternary ammonium salts provides final products in very good yields up to 98% and with up to 92% ee. The starting phosphonium salts were easily obtained from α-amino acid derivatives by decarboxylative methoxylation and subsequent substitution with triphenylphosphonium tetrafluoroborate. The appropriate self-disproportionation of enantiomers (SDE) test for selected α-aminophosphonate derivatives via achiral flash chromatography was performed to confirm the reliability of the enantioselectivity results that were obtained.
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Affiliation(s)
- Alicja Walęcka-Kurczyk
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland; (A.W.-K.); (K.W.); (A.K.)
- Biotechnology Center of Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Krzysztof Walczak
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland; (A.W.-K.); (K.W.); (A.K.)
| | - Anna Kuźnik
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland; (A.W.-K.); (K.W.); (A.K.)
- Biotechnology Center of Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
| | - Sebastian Stecko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland;
| | - Agnieszka Październiok-Holewa
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland; (A.W.-K.); (K.W.); (A.K.)
- Biotechnology Center of Silesian University of Technology, B. Krzywoustego 8, 44-100 Gliwice, Poland
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19
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Kwiczak-Yiğitbaşı J, Pirat JL, Virieux D, Volle JN, Janiak A, Hoffmann M, Mrzygłód J, Wawrzyniak D, Barciszewski J, Pluskota-Karwatka D. Synthesis, structural studies and biological properties of some phosphono-perfluorophenylalanine derivatives formed by S NAr reactions. RSC Adv 2019; 9:24117-24133. [PMID: 35527881 PMCID: PMC9069932 DOI: 10.1039/c9ra03982a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 07/16/2019] [Indexed: 01/20/2023] Open
Abstract
Several novel phosphono-perfluorophenylalanine derivatives, as mimetics of phenylalanine, were synthesized by subjecting diethyl (2-(perfluorophenyl)-1-(phenylamino)ethyl)-phosphonate to SNAr reactions with different types of nucleophiles such as thiols, amines and phenols. The structure of the products was confirmed using spectroscopic and spectrometric techniques. For two compounds X-ray single crystal diffraction analysis and DFT investigations were performed providing information in regard to the preferable conformation, hydrogen bonds and other interactions. The antiproliferative potency of some of the new phosphono-perfluorophenylalanine derivatives obtained as well as representatives of previously synthesized perfluorophenyl phosphonate analogues of phenylalanine was studied on selected glioma cell lines. Preliminary evaluation of the compounds drug likeness was examined with respect to Lipinski's and Veber's rules, and showed that they meet the criteria perfectly. MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide) assay results demonstrated that the compounds exhibit moderate activity against the glioblastoma multiforme cell lines (T98G and U-118 MG). Moreover most of the studied SNAr reaction products displayed significantly higher inhibitory activity against both cancer cell lines than the parent diethyl (2-(perfluorophenyl)-1-(phenylamino)ethyl)phosphonate.
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Affiliation(s)
- Joanna Kwiczak-Yiğitbaşı
- Adam Mickiewicz University in Poznań, Faculty of Chemistry Umultowska 89b 61-614 Poznań Poland
- AM2N, UMR 5253, ICGM, ENSCM 8 Rue de L'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Jean-Luc Pirat
- AM2N, UMR 5253, ICGM, ENSCM 8 Rue de L'Ecole Normale 34296 Montpellier Cedex 5 France
| | - David Virieux
- AM2N, UMR 5253, ICGM, ENSCM 8 Rue de L'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Jean-Noël Volle
- AM2N, UMR 5253, ICGM, ENSCM 8 Rue de L'Ecole Normale 34296 Montpellier Cedex 5 France
| | - Agnieszka Janiak
- Adam Mickiewicz University in Poznań, Faculty of Chemistry Umultowska 89b 61-614 Poznań Poland
| | - Marcin Hoffmann
- Adam Mickiewicz University in Poznań, Faculty of Chemistry Umultowska 89b 61-614 Poznań Poland
| | - Jakub Mrzygłód
- Adam Mickiewicz University in Poznań, Faculty of Chemistry Umultowska 89b 61-614 Poznań Poland
| | - Dariusz Wawrzyniak
- Institute of Bioorganic Chemistry, Polish Academy of Sciences Noskowskiego 12/14 61-704 Poznań Poland
| | - Jan Barciszewski
- Institute of Bioorganic Chemistry, Polish Academy of Sciences Noskowskiego 12/14 61-704 Poznań Poland
- NanoBioMedical Center of Adam Mickiewicz University Umultowska 85 61-614, Poznań Poland
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20
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Huang Q, Dong K, Bai W, Yi D, Ji JX, Wei W. TEMPO-Catalyzed Aminophosphinoylation of Ethers via Tandem C(sp3)–H and C(sp3)–O Bond Cleavage. Org Lett 2019; 21:3332-3336. [DOI: 10.1021/acs.orglett.9b01081] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiang Huang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaikai Dong
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenjing Bai
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Yi
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Jian-Xin Ji
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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21
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Ji JJ, Zhu ZQ, Xiao LJ, Guo D, Zhu X, Tang J, Wu J, Xie ZB, Le ZG. Photocatalyst-free decarboxylative aminoalkylation of imidazo[1,2-a]pyridines with N-aryl glycines enabled by visible light. Org Chem Front 2019. [DOI: 10.1039/c9qo00935c] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel, green and efficient visible-light-promoted decarboxylative aminoalkylation reaction of imidazo[1,2-a]pyridines with N-aryl glycines has been described.
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Affiliation(s)
- Jiu-Jian Ji
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zhi-Qiang Zhu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Li-Jin Xiao
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Dong Guo
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Xiao Zhu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Juan Tang
- Ministry of Education Key Laboratory of Functional Small Organic Molecule
- Department of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Jun Wu
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zong-Bo Xie
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
| | - Zhang-Gao Le
- School of Chemistry
- Biology and Material Science
- East China University of Technology
- Nanchang 330013
- P. R. China
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