1
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Furlan Sandrini DM, Morgado DL, de Oliveira AJA, de Moraes DA, Varanda LC, Frollini E. Cellulose esters: Synthesis for further formation of films with magnetite nanoparticles incorporated. Int J Biol Macromol 2024; 264:130594. [PMID: 38437931 DOI: 10.1016/j.ijbiomac.2024.130594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/07/2024] [Accepted: 03/01/2024] [Indexed: 03/06/2024]
Abstract
This study investigated the homogeneous synthesis of cellulose acetate (CA) and propionate (CP) with varying degrees of substitution (DS) from sisal cellulose in a N, N-dimethylacetamide/lithium chloride (DMAc/LiCl) solvent system. These esters were used to prepare neat (CADSF/CPDSF) and nanocomposite films (CADSFFe/CPDSFFe) from prior synthesized magnetite nanoparticles (NPs, Fe3O4, 5.1 ± 0.5 nm). Among the CA and CP series, the composite CA0.7FFe and the neat CP0.7F films exhibited the highest modulus of elasticity, 2105 MPa and 2768 MPa, respectively, probably a consequence of the continuous fibrous structures present on the surface of these films. Microsphere formation on the film's surface was observed in scanning electron microscopy micrographs. This points to applications in the controlled release of targeted substances. The VSM analysis showed that the cellulosic matrices preserved the superparamagnetic characteristics of the NPs. This study suggested a reduced coupling effect between nanoparticles inside polymeric films due to magnetic saturation at low fields. CA0.7FFe and CA1.3FFe composite films reached a saturation magnetization (MSAT) of 46 emu/g around 7 kOe field. Hosting magnetite nanoparticles in cellulose ester matrices may be an interesting way to develop new functional cellulose-based materials, which have the potential for diverse applications, including microelectromechanical systems and microsensors.
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Affiliation(s)
- Daiana M Furlan Sandrini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Daniella Lury Morgado
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | | | - Daniel A de Moraes
- Colloidal Materials Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Laudemir C Varanda
- Colloidal Materials Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Elisabete Frollini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Research on Science and Technology of BioResources, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil.
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2
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Zhao MN, Yang ZM, Li LQ. DMF as an amine source: iron-catalyzed cyclization of 2 H-azirines to imidazoles. Chem Commun (Camb) 2024. [PMID: 38258986 DOI: 10.1039/d3cc06147g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
A novel method has been developed for the synthesis of 1-methyl-4,5-diaryl-1H-imidazoles through Fe(II)-catalyzed cyclization of 2H-azirines and N,N-dimethylformamide (DMF) as an amine source. This transformation involves the cleavage of C-N and CN double bonds and the construction of new C-N and CN double bonds. The reaction has readily available starting materials, a wide range of substrates and mild reaction conditions. In addition, the reaction also facilitated the convenient synthesis of 1-methyl-2,4,5-triaryl-1H-imidazoles.
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Affiliation(s)
- Mi-Na Zhao
- College of Chemistry and Chemical Engineering, Shaanxi Xueqian Normal University, Xi'an, Shaanxi 710100, P. R. China.
| | - Zi-Mo Yang
- Shaanxi Key Laboratory of Phytochemistry, College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji, Shaanxi 721013, P. R. China
| | - Lian-Qing Li
- College of Chemistry and Chemical Engineering, Shaanxi Xueqian Normal University, Xi'an, Shaanxi 710100, P. R. China.
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3
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Liu X, Wang S, Xu X, Khair H, Dong Z, Wang H, Zhang W, Yu T, Men Z, Sun C, Wang S. Exploring the dynamic changes in hydrogen bond structure of water and heavy water under external perturbation of DMF. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 305:123493. [PMID: 37852121 DOI: 10.1016/j.saa.2023.123493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/14/2023] [Accepted: 10/02/2023] [Indexed: 10/20/2023]
Abstract
The Raman spectra of DMF-water/heavy water binary solutions at different volume ratios are measured to investigate the hydrogen bond structure between N, N-dimethylformamide (DMF) and water/heavy water. It was observed that when VDMF below 40 %, DMF reinforces the hydrogen bond among water molecules through the substitution of a small amount of water molecules within the tetrahedral structure. However, a similar enhancement phenomenon is not observed in heavy water. When VDMF is less than 60 %, the hydrogen bonds among DMF and heavy water molecules affect the symmetry of OD covalent bond. Furthermore, as VDMF exceeds 40 %/60 %, the tetrahedral structures of water and heavy water are gradually replaced by DMF·3H2O/3D2O, DMF·2H2O/2D2O, and DMF·H2O/D2O clusters. The transition point of hydrogen bond structure in DMF- aqueous solution moved to VDMF = 15 % under the influence of under the influence of dynamic high pressure caused by pulsed laser beam. This study provides valuable insights into the microstructure of water/heavy water clusters.
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Affiliation(s)
- Xiaokai Liu
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Suhan Wang
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Xueliang Xu
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Husniatul Khair
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Zhiyi Dong
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Haixin Wang
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Wei Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ting Yu
- Division of Physics and Applied Physics, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhiwei Men
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China
| | - Chenglin Sun
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China.
| | - Shenghan Wang
- Key Laboratory of Physics and Technology for Advanced Batteries, College of Physics, Jilin University, Changchun 130012, China.
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4
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Yu R, Hao F, Zhang X, Fang Z, Jin Z, Liu G, Dai G, Wu J. Cobalt-Catalyzed Chemoselective Reduction of N-Heteroaryl Ketones with N, N-Dimethylformamide as a Hydride Source. J Org Chem 2023. [PMID: 37257025 DOI: 10.1021/acs.joc.3c00283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A method for chemoselective reduction of 2-pyridyl ketones and related N-heteroaryl compounds catalyzed by cobalt stearate using DMF as a hydride source is developed. The ketone substrate is activated by chelation with cobalt, which makes the present method highly chemoselective. A possible reaction mechanism is proposed on the basis of control experiments.
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Affiliation(s)
- Rurong Yu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Feiyue Hao
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Xinyu Zhang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Zhongbing Fang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Zhengneng Jin
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Guyue Liu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
| | - Guoliang Dai
- School of Chemical Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jiashou Wu
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Jiaojiang 318000, China
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5
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Shet H, Patel M, Waikar JM, More PM, Sanghvi YS, Kapdi AR. Room-Temperature Dialkylamination of Chloroheteroarenes Using a Cu(II)/PTABS Catalytic System. Chem Asian J 2023; 18:e202201006. [PMID: 36355632 DOI: 10.1002/asia.202201006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 10/21/2022] [Indexed: 11/12/2022]
Abstract
The dimethylamino functionality has significant importance in industrially relevant molecules and methodologies to install these efficiently are highly desirable. We report herein a highly efficient, room-temperature dimethylamination of chloroheteroarenes performed via the in-situ generation of dimethylamine using N,N-dimethylformamide (DMF) as precursor wiith a large substrate scope that includes various heteroarenes, purines as well as commercially relevant drugs such as altretamine, ampyzine and puromycin precursor.
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Affiliation(s)
- Harshita Shet
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India.,Department of Chemistry, Institute of Chemical Technology-Indian Oil Odisha Campus, IIT Kharagpur Extension Centre, Mouza Samantpuri, Bhubaneswar, 751013, Odisha, India
| | - Manisha Patel
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
| | - Jyoti M Waikar
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
| | - Pavan M More
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
| | - Yogesh S Sanghvi
- Rasayan Inc., 2802 Crystal Ridge road, Encinitas, CA 92024-6615, U.S.A
| | - Anant R Kapdi
- Department of Chemistry, Institute of Chemical Technology, Nathalal Parekh Road, Matunga, Mumbai, 400019, India
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6
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Wang Y, Meng X, Cai C, Wang L, Gong H. Radical Cross-Coupling Reaction Based on Hydrogen Atom Abstraction of DMF and Decarboxylation of α-Ketoacid under Electricity. J Org Chem 2022; 87:15042-15049. [DOI: 10.1021/acs.joc.2c01461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yanjie Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Xia Meng
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Changqun Cai
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lingyun Wang
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Material and Chemical Engineering, Hunan Institute of Technology, Hengyang 421002, China
| | - Hang Gong
- The Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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7
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Visible Light‐Promoted Fluorescein/Ni‐Catalyzed Synthesis of Bis‐(β‐Dicarbonyls) using Olefins as a Methylene Bridge Synthon. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200424] [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]
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8
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Chen P, Huang PF, Xiong BQ, Huang HW, Tang KW, Liu Y. Visible-Light-Induced Decarboxylative Alkylation/Ring Opening and Esterification of Vinylcyclopropanes. Org Lett 2022; 24:5726-5730. [PMID: 35920748 DOI: 10.1021/acs.orglett.2c02151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A visible-light-induced four-component reaction of vinylcyclopropanes, N-(acyloxy)phthalimide esters, N,N-dimethylformamide (DMF), and H2O through an oxidative ring opening of cyclopropane is presented. This procedure provides a new and effective way to construct formate esters. DMF is employed as both a solvent and the source of CHO. This difunctionalization of vinylcyclopropanes shows good functional group tolerance under room temperature. A radical pathway is involved, and carbonyl oxygen of ester originated from water in this transformation.
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Affiliation(s)
- Pu Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, People's Republic of China.,Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, People's Republic of China
| | - Peng-Fei Huang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, People's Republic of China
| | - Bi-Quan Xiong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, People's Republic of China
| | - Hua-Wen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, Hunan 411105, People's Republic of China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, People's Republic of China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, People's Republic of China
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9
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Liu YD, Liu JF, Liu B. N,N-Dimethylformamide inhibits high glucose-induced osteoporosis via attenuating MAPK and NF-κB signalling. Bone Joint Res 2022; 11:200-209. [PMID: 35369730 PMCID: PMC9057521 DOI: 10.1302/2046-3758.114.bjr-2020-0308.r2] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Aims The role of N,N-dimethylformamide (DMF) in diabetes-induced osteoporosis (DM-OS) progression remains unclear. Here, we aimed to explore the effect of DMF on DM-OS development. Methods Diabetic models of mice, RAW 264.7 cells, and bone marrow macrophages (BMMs) were established by streptozotocin stimulation, high glucose treatment, and receptor activator of nuclear factor-κB ligand (RANKL) treatment, respectively. The effects of DMF on DM-OS development in these models were examined by micro-CT analysis, haematoxylin and eosin (H&E) staining, osteoclast differentiation of RAW 264.7 cells and BMMs, H&E and tartrate-resistant acid phosphatase (TRAP) staining, enzyme-linked immunosorbent assay (ELISA) of TRAP5b and c-terminal telopeptides of type 1 (CTX1) analyses, reactive oxygen species (ROS) analysis, quantitative reverse transcription polymerase chain reaction (qRT-PCR), Cell Counting Kit-8 (CCK-8) assay, and Western blot. Results The established diabetic mice were more sensitive to ovariectomy (OVX)-induced osteoporosis, and DMF treatment inhibited the sensitivity. OVX-treated diabetic mice exhibited higher TRAP5b and c-terminal telopeptides of type 1 (CTX1) levels, and DMF treatment inhibited the enhancement. DMF reduced RAW 264.7 cell viability. Glucose treatment enhanced the levels of TRAP5b, cathepsin K, Atp6v0d2, and H+-ATPase, ROS, while DMF reversed this phenotype. The glucose-increased protein levels were inhibited by DMF in cells treated with RANKL. The expression levels of antioxidant enzymes Gclc, Gclm, Ho-1, and Nqo1 were upregulated by DMF. DMF attenuated high glucose-caused osteoclast differentiation by targeting mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF-κB) signalling in BMMs. Conclusion DMF inhibits high glucose-induced osteoporosis by targeting MAPK and NF-κB signalling. Cite this article: Bone Joint Res 2022;11(4):200–209.
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Affiliation(s)
- Ya Dong Liu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, China
| | - Jian Feng Liu
- Department of Hand Surgery, The First Hospital of Jilin University, Changchun, China
| | - Bin Liu
- Department of Hand Surgery, The First Hospital of Jilin University, Changchun, China
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10
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Kudale VS, Zheng S, Huang SH, Chang YL, Wang JJ. A metal-free strategy for the cross-dehydrogenative coupling of 1,3-dicarbonyl compounds with 2-methoxyethanol. Org Biomol Chem 2022; 20:1226-1230. [PMID: 35040852 DOI: 10.1039/d1ob02290c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Here, we report a metal-free approach for the construction of methylene-bridged bis-1,3-dicarbonyl compounds via cross-dehydrogenative coupling of 1,3-dicarbonyl compounds with 2-methoxyethanol. In addition, we have extended this methodology to synthesize tetra-substituted pyridine derivatives using 1,3-dicarbonyl, 2-methoxyethanol and NH4OAc in one step. The key advantages include accepting a wide range of substrates, utilizing O2 as the sole oxidant, and synthesizing biologically active compounds such as 1,4-dihydropyridine and pyrazole.
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Affiliation(s)
- Vishal Suresh Kudale
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Sheng Zheng
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Sheng-Hua Huang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Yu-Lun Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan.
| | - Jeh-Jeng Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, No. 100, Shiquan 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan. .,Department of Medicinal Research, Kaohsiung Medical University Hospital, No. 100, Tzyou 1st Rd, Sanmin District, Kaohsiung City, 807, Taiwan
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11
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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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12
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Dai X, Wang X, Rabeah J, Kreyenschulte C, Brückner A, Shi F. Supported Cu II Single-Ion Catalyst for Total Carbon Utilization of C 2 and C 3 Biomass-Based Platform Molecules in the N-Formylation of Amines. Chemistry 2021; 27:16889-16895. [PMID: 34423878 PMCID: PMC9292173 DOI: 10.1002/chem.202102300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Indexed: 12/28/2022]
Abstract
The shift from fossil carbon sources to renewable ones is vital for developing sustainable chemical processes to produce valuable chemicals. In this work, value‐added formamides were synthesized in good yields by the reaction of amines with C2 and C3 biomass‐based platform molecules such as glycolic acid, 1,3‐dihydroxyacetone and glyceraldehyde. These feedstocks were selectively converted by catalysts based on Cu‐containing zeolite 5A through the in situ formation of carbonyl‐containing intermediates. To the best of our knowledge, this is the first example in which all the carbon atoms in biomass‐based feedstocks could be amidated to produce formamide. Combined catalyst characterization results revealed preferably single CuII sites on the surface of Cu/5A, some of which form small clusters, but without direct linking via oxygen bridges. By combining the results of electron paramagnetic resonance (EPR) spin‐trapping, operando attenuated total reflection (ATR) IR spectroscopy and control experiments, it was found that the formation of formamides might involve a HCOOH‐like intermediate and .NHPh radicals, in which the selective formation of .OOH radicals might play a key role.
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Affiliation(s)
- Xingchao Dai
- Leibniz Institute for Catalysis e.V., University of Rostock (LIKAT), Albert-Einstein-Str. 29a, 18059, Rostock, Germany.,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou, 730000, China
| | - Xinzhi Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou, 730000, China
| | - Jabor Rabeah
- Leibniz Institute for Catalysis e.V., University of Rostock (LIKAT), Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Carsten Kreyenschulte
- Leibniz Institute for Catalysis e.V., University of Rostock (LIKAT), Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Angelika Brückner
- Leibniz Institute for Catalysis e.V., University of Rostock (LIKAT), Albert-Einstein-Str. 29a, 18059, Rostock, Germany
| | - Feng Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No. 18, Tianshui Middle Road, Lanzhou, 730000, China
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13
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Cheng TJ, Chen JJ, Wu P, Xu H, Dai HX. Copper-Mediated ortho-C-H Amination Using DMF as the Amine Source. Org Lett 2021; 23:8505-8509. [PMID: 34704762 DOI: 10.1021/acs.orglett.1c03223] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report herein a copper-mediated ortho-C-H amination of anilines using oxalamide as the directing group and DMF as the amination reagent. This protocol tolerates various functional groups and shows good heterocyclic compatibility. Late-stage dimethylamination of drugs demonstrated the synthetic practicality of the protocol. Mechanistic experiments indicate that a radical pathway may be involved in the reaction.
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Affiliation(s)
- Tai-Jin Cheng
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun-Jie Chen
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai 201203, China
| | - Peng Wu
- Department of Chemistry, Innovative Drug Research Center, Shanghai University, 99 Shangda Road, Shanghai 200444, China
| | - Hui Xu
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai 201203, China
| | - Hui-Xiong Dai
- Chinese Academy of Sciences Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, University of Chinese Academy of Sciences, Shanghai 201203, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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14
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Muzart J. A Journey from June 2018 to October 2021 with N, N-Dimethylformamide and N, N-Dimethylacetamide as Reactants. Molecules 2021; 26:6374. [PMID: 34770783 PMCID: PMC8587108 DOI: 10.3390/molecules26216374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 02/01/2023] Open
Abstract
A rich array of reactions occur using N,N-dimethylformamide (DMF) or N,N-dimethylacetamide (DMAc) as reactants, these two amides being able to deliver their own H, C, N, and O atoms for the synthesis of a variety of compounds. This account highlights the literature published since June 2018, completing previous reviews by the author.
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Affiliation(s)
- Jacques Muzart
- Institut de Chimie Moléculaire de Reims, CNRS-Université de Reims Champagne-Ardenne, B.P. 1039, CEDEX 2, 51687 Reims, France
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15
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Jiao D, Wang Y, Zhang Z, Zhang J, Lei L, Wang F. Catalysis of Positively Charged Ru Species Stabilized by Hydroxyapatite in Amine Formylation. ChemCatChem 2021. [DOI: 10.1002/cctc.202100937] [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)
- Dongxia Jiao
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
- University of the Chinese Academy of Sciences No.19 A Yuquan Road Beijing 100049 P. R. China
| | - Yehong Wang
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Zhixin Zhang
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Jian Zhang
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Lijun Lei
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
| | - Feng Wang
- State Key Laboratory of Catalysis (SKLC) Dalian National Laboratory for Clean Energy (DNL) Dalian Institute of Chemical Physics (DICP) Chinese Academy of Sciences 457 Zhongshan Road Dalian 116023 P. R. China
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16
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Su MD, Liu HP, Cao ZZ, Liu Y, Li H, Nie ZW, Yang TL, Luo WP, Liu Q, Guo CC. Two C═C Bond Participation in Annulation to Pyridines Based on DMF as the Nonadjacent N and C Atom Donors. J Org Chem 2021; 86:13446-13453. [PMID: 34546730 DOI: 10.1021/acs.joc.1c01550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Two C═C bond participation in annulation to pyridines using N,N-dimethylformamide (DMF) as the N1 and C4 synthons has been carried out. In this reaction, DMF contributed one N atom and one C atom to two disconnected positions of pyridine ring, with no need for an additional nitrogen source. Two C═C bonds in two molecules of substituted styrenes offered four carbon atoms in the presence of iodine and persulfate. With the optimized conditions in hand, both symmetric and unsymmetric diaryl-substituted pyridines were obtained in useful yields. On the basis of relevant literature and a series of control experimental results, a possible mechanism was proposed in this work, which may demonstrate how DMF provides both N1 and C4 sources.
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Affiliation(s)
- Miao-Dong Su
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Hai-Ping Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Zhong-Zhong Cao
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Yufeng Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Hui Li
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Zhi-Wen Nie
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Tong-Lin Yang
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Wei-Ping Luo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Qiang Liu
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
| | - Can-Cheng Guo
- College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, Hunan University, Changsha 410082, China
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17
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Hsa_circ_0005915 promotes N,N-dimethylformamide-induced oxidative stress in HL-7702 cells through NRF2/ARE axis. Toxicology 2021; 458:152838. [PMID: 34153373 DOI: 10.1016/j.tox.2021.152838] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/29/2021] [Accepted: 06/16/2021] [Indexed: 01/02/2023]
Abstract
N,N-dimethylformamide (DMF) is an organic compound widely used in industrial production processes as a solvent with a low evaporation rate. Excessive exposure to DMF may lead to liver damage. Oxidative stress has been reported as one of the main causes of DMF-induced hepatotoxicity. Several doses of DMF (0, 1, 5, and 10 mM) were used to treat HL-7702 cells for a relatively long period to simulate the actual exposure pattern in occupational settings, and oxidative stress was induced. Previous studies illustrated that circular RNA (circRNA) plays a vital role in sustaining hepatocyte physiological function. To explore whether aberrant circRNA expression is involved in DMF-induced excessive ROS generation and hepatotoxicity, high-throughput transcriptional sequencing was performed to identify the altered circRNA expression profiles in HL-7702 liver cells after treatment with 0, 75, or 150 mM DMF for 48 h. We found that levels of induced oxidative stress were similar to those in the long-term exposure model. Among the altered circRNAs, one circRNA (hsa_circ_0005915) was significantly upregulated after DMF exposure, and it affected DMF-mediated oxidative stress in HL-7702 cells. Further experiments revealed that hsa_circ_0005915 downregulated the expression of nuclear factor erythoid-2-related factor 2 (NRF2) at the post-transcriptional level via promoting the ubiquitination and degradation of NRF2, which led to the increase of ROS accumulation. Further investigation demonstrated that the expression levels of NRF2-regulated antioxidative genes-heme oxygenase 1 (HO1) and NAD(P)H quinone dehydrogenase 1 (NQO1)-indeed declined after the overexpression of hsa_circ_0005915. In vivo study also indicated that DMF exposure can upregulate the expression of mmu_circ_0007941 (homologous circRNA of hsa_circ_0005915) and downregulated Nrf2 and Ho1 proteins. In summary, our results revealed that hsa_circ_0005915 plays an important role in promoting DMF-induced oxidative stress by inhibiting the transcriptional activity of the NRF2/ARE axis, which provides a potential molecular mechanism of DMF-mediated hepatotoxicity.
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18
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Sakthivel P, Adarsh Krishna TP, Ilangovan A. Photocatalyzed Chemo‐Selective Alkylation of Quinones and Phenothiazinones with Alkyl Amides: Photophysical and Cytotoxic Activity Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202100054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pandaram Sakthivel
- School of Chemistry Bharathidasan University Tiruchirappalli 620024 India
| | | | - Andivelu Ilangovan
- School of Chemistry Bharathidasan University Tiruchirappalli 620024 India
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19
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Li M, Zheng L, Ma L, Chen Y. Transition Metal-Free Oxidative Cross-Coupling Reaction of Activated Olefins with N-Alkyl Amides. J Org Chem 2021; 86:3989-3998. [PMID: 33573381 DOI: 10.1021/acs.joc.0c02837] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The K2S2O8-mediated transition metal-free oxidative cross-coupling reaction of activated olefins with N-alkyl amides was developed, and the reaction gave N-allylic amides in moderate to good yield. This reaction protocol was suitable for different kinds of activated olefins.
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Affiliation(s)
- Miaomiao Li
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Lei Zheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Li Ma
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yunfeng Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, P. R. China
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20
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Khavlyuk PD, Stepanidenko EA, Bondarenko DP, Danilov DV, Koroleva AV, Baranov AV, Maslov VG, Kasak P, Fedorov AV, Ushakova EV, Rogach AL. The influence of thermal treatment conditions (solvothermal versus microwave) and solvent polarity on the morphology and emission of phloroglucinol-based nitrogen-doped carbon dots. NANOSCALE 2021; 13:3070-3078. [PMID: 33522554 DOI: 10.1039/d0nr07852b] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The optical properties of chemically synthesized carbon dots (CDs) can be widely tuned via doping and surface modification with heteroatoms such as nitrogen, which results in a range of potential applications. Herein, two most commonly used synthesis approaches, namely, solvothermal and microwave-assisted thermal treatments, have been used for the preparation of CDs from phloroglucinol using three different nitrogen containing solvents, namely, ethylenediamine, dimethylformamide, and formamide. Based on the analysis of the morphology and optical properties, we demonstrate the tenability of the CD appearance from amorphous or well-carbonized spherical particles to onion-like ones, which is controlled by solvent polarity, whereas the thermal treatment conditions mostly influence the degree of N-doping and the nature of emissive centers of CDs formed. The findings of this study expand the toolkit of the available CDs with variable morphology and energy structure.
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Affiliation(s)
- Pavel D Khavlyuk
- Center of Information Optical Technologies, ITMO University, Saint Petersburg, 197101, Russia.
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21
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He Z, Wu D, Vessally E. Cross-dehydrogenative Coupling Reactions Between Formamidic C(sp 2)-H and X-H (X = C, O, N) Bonds. Top Curr Chem (Cham) 2020; 378:46. [PMID: 32975616 DOI: 10.1007/s41061-020-00309-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 09/10/2020] [Indexed: 02/05/2023]
Abstract
In the last decade, the scientific community has witnessed explosive growth in research on the direct carbamoylation of C-H and X-H (X = N, O) bonds with formamides via cross-dehydrogenative coupling reactions. This novel approach is an effective means of preparing a variety of carboxamide, carbamate as well as urea derivatives, which are prevalent in medicinal chemistry and natural product synthesis. This review elaborates the most important advances and developments in the field, with an emphasis on the reaction patterns and mechanisms.
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Affiliation(s)
- Zhe He
- School of Environment, Liaoning University, Shenyang, 110036, China
| | - Dan Wu
- School of Environment, Liaoning University, Shenyang, 110036, China.
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University, Tehran, Iran
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22
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Yang Q, Sheng M, Huang Y. Potential Safety Hazards Associated with Using N,N-Dimethylformamide in Chemical Reactions. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00330] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Qiang Yang
- Product & Process Technology R&D, Corteva Agriscience, 9330 Zionsville Road, Indianapolis, Indiana 46268, United States
| | - Min Sheng
- Reactive Chemicals, Product & Process Technology R&D, Corteva Agriscience, Midland, Michigan 48667, United States
| | - Yongliang Huang
- Product & Process Technology R&D, Corteva Agriscience, 338 Jialilue Road, Shanghai 201203, China
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23
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Ganesan B, Govindan K, Senadi GC, Kandasamy M, Lin WY. Copper-catalyzed synthesis of aminoquinolines from β-(2-aminophenyl)-α,β-ynones using DMF as dual synthon. Chem Commun (Camb) 2020; 56:6488-6491. [PMID: 32458882 DOI: 10.1039/d0cc03033c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new and efficient method has been developed for the synthesis of 4-aminoquinoline through aerobic Cu(i)-catalyzed cyclization of β-(2-aminophenyl)-α,β-ynones. Under the optimized conditions, DMF could serve as a methine source to introduce C2 carbon and a nitrogen source to incorporate amino functionality in the 4th position. Mechanistic studies using 13C- and DMF-d7 revealed that the methine group was derived from a methyl substituent.
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Affiliation(s)
- Balaji Ganesan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China.
| | - Karthick Govindan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China.
| | - Gopal Chandru Senadi
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai-603203, India
| | - Mohanraj Kandasamy
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China.
| | - Wei-Yu Lin
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China. and Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan, Republic of China and Drug Development and Value Creation Research Centre, Kaohsiung Medical University, Kaohsiung 80708, Taiwan, Republic of China
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24
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Pandaram S, T P AK, Ilangovan A. The silver catalyzed direct C-H functionalization of quinones with dialkyl amides. Org Biomol Chem 2020; 18:3027-3031. [PMID: 32239012 DOI: 10.1039/d0ob00323a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
DMA and other dialkylamides were successfully used as synthons for the C-H functionalization of quinones. This novel amidoalkylation reaction works with a variety of substituted quinones and dialkyl/alkyl amides, such as DMF, NMP and NMA, and the corresponding products were obtained in moderate to good yields. The amidoalkylation of quinones is demonstrated for the first time. A suitable mechanism and the synthetic utility of these compounds are demonstrated. The molecular docking of compound 5 with an Alzheimer's disease (AD) associated AChE target site was studied.
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Affiliation(s)
- Sakthivel Pandaram
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
| | - Adarsh Krishna T P
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
| | - Andivelu Ilangovan
- Bharathidasan University, School of Chemistry, Tiruchirappalli, Tamil Nadu, India.
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25
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Abstract
This review recounts the development by the authors of the Pd-catalyzed procedures devoted to various kinds of oxidation. Starting with reactions assisted with UV light, the research has explored reactions under light-free conditions: allylic oxidation, alcohol oxidation, etherification, Wacker oxidation and dehydrogenations with, always, accompanying efforts towards mechanism determination.
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26
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Li X, Wang S, Zang J, Liu M, Jiang G, Ji F. Copper- and DMF-mediated switchable oxidative C–H cyanation and formylation of imidazo[1,2-a]pyridines using ammonium iodide. Org Biomol Chem 2020; 18:9100-9108. [DOI: 10.1039/d0ob01838d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The cyanation and formylation of imidazo[1,2-a]pyridines were developed under copper-mediated oxidative conditions using ammonium iodide and DMF as a nontoxic combined cyano-group source and DMF as a formylation reagent.
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Affiliation(s)
- Xuan Li
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Jiawang Zang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Meichen Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- P. R. China
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27
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Ghosh T, Jana S, Dash J. KOtBu-Promoted Transition-Metal-Free Transamidation of Primary and Tertiary Amides with Amines. Org Lett 2019; 21:6690-6694. [DOI: 10.1021/acs.orglett.9b02306] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Tridev Ghosh
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Snehasish Jana
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Jadavpur, Kolkata-700032, India
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28
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Ning Y, He X, Zuo Y, Cai P, Xie M, Wang J, Shang Y. Rhodium(II) Acetate‐Catalysed Cyclization of Pyrazol‐5‐amine and 1,3‐Diketone‐2‐diazo Compounds Using
N
,
N
‐Dimethylformamide as a Carbon‐Hydrogen Source: Access to Pyrazolo[3,4‐
b
]pyridines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900093] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yi Ning
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Youpeng Zuo
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Panyuan Cai
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University Wuhu People's Republic of China
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29
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30
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Tian Q, Luo W, Gan Z, Li D, Dai Z, Wang H, Wang X, Yuan J. Eco-Friendly Syntheses of 2-Substituted Benzoxazoles and 2-Substituted Benzothiazoles from 2-Aminophenols, 2-Aminothiophenols and DMF Derivatives in the Presence of Imidazolium Chloride. Molecules 2019; 24:E174. [PMID: 30621218 PMCID: PMC6337447 DOI: 10.3390/molecules24010174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 12/24/2018] [Accepted: 12/29/2018] [Indexed: 11/17/2022] Open
Abstract
A simple, economical and metal-free approach to the synthesis of 2-substituted benzoxazoles and 2-substituted benzothiazoles from 2-aminophenols, 2-aminothiophenols and DMF derivatives, only using imidazolium chloride (50% mmol) as promoter without any other additive, was reported. Various 2-substituted benzoxazoles and 2-substituted benzothiazoles were thus prepared in moderate to excellent yields.
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Affiliation(s)
- Qingqiang Tian
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Wen Luo
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zongjie Gan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Dan Li
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Zeshu Dai
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Huajun Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Xuetong Wang
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
| | - Jianyong Yuan
- Department of Medicinal Chemistry, College of Pharmacy, Chongqing Medical University, Chongqing 400016, China.
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31
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Ye R, Hao F, Liu G, Zuo Q, Deng L, Jin Z, Wu J. DMF/NaOH/H2O: a metal-free system for efficient and chemoselective reduction of α-ketoamides. Org Chem Front 2019. [DOI: 10.1039/c9qo00842j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A metal-free method for efficient and chemoselective reduction of α-ketoamides using DMF/NaOH/H2O system has been developed.
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Affiliation(s)
- Rongcong Ye
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Feiyue Hao
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Guyue Liu
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Qingsong Zuo
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Lijun Deng
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Zhengneng Jin
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
| | - Jiashou Wu
- School of Pharmaceutical and Materials Engineering
- Taizhou University
- Taizhou 318000
- P. R. China
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