1
|
Kanova N, Dundar BA, Kelgokmen Y, Zora M. One-Pot Synthesis of 2-Acetyl-1 H-pyrroles from N-Propargylic β-Enaminones via Intermediacy of 1,4-Oxazepines. J Org Chem 2021; 86:6289-6304. [PMID: 33872009 DOI: 10.1021/acs.joc.1c00077] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A one-pot two-step protocol for the synthesis of 2-acetyl-1H-pyrroles from N-propargylic β-enaminones was described. When treated with zinc chloride in refluxing chloroform, N-propargylic β-enaminones produced in situ 2-methylene-2,3-dihydro-1,4-oxazepines, which, upon further refluxing in methanol with zinc chloride, afforded 2-acetyl-1H-pyrroles. The process was found to be general for a wide variety of N-propargylic β-enaminones and yielded a diverse range of 2-acetyl-1H-pyrroles in good to high yields with large substrate scope and good functional group tolerance. This operationally easy method may provide a rapid access to functionalized 2-acetyl-1H-pyrroles of pharmacological interest.
Collapse
Affiliation(s)
- Nilay Kanova
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Buse Aysen Dundar
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Yilmaz Kelgokmen
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Metin Zora
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| |
Collapse
|
2
|
Ibis O, Zora M. A facile synthesis of 6-chloro-2-methylene-2,3-dihydro-1,4-oxazepines from N-propargylic β-enaminones. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131650] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
3
|
Korkmaz E, Zora M. Synthesis of 3-[(4-Nitrophenyl)thio]-Substituted 4-Methylene-1-pyrrolines from N-Propargylic β-Enaminones. J Org Chem 2020; 85:4937-4950. [PMID: 32154723 DOI: 10.1021/acs.joc.0c00109] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A facile and efficient method for the synthesis of 3-[(4-nitrophenyl)thio]-substituted 4-methylene-1-pyrrolines is described. When treated with 4-nitrobenzenesulfenyl chloride in refluxing acetonitrile, N-propargylic β-enaminones produced α-sulfenylated N-propargylic β-enaminones, which, in the presence of sodium hydride or cesium carbonate, underwent nucleophilic cyclization to afford 4-methylene-3-[(4-nitrophenyl)thio]-1-pyrrolines in good to high yields. It was shown for the first time that on N-propargylic β-enaminone systems, α-sulfenylation dominates over the formation of thiirenium ion. This one-pot two-step process was found to be general for a variety of N-propargylic β-enaminones and demonstrated good tolerance to a diversity of aromatic and heteroaromatic groups with electron-withdrawing and electron-donating substituents. This process is also applicable to the cyclization of internal alkyne-tethered N-propargylic β-enaminones. The enrichment of 1-pyrroline core with an aryl sulfide moiety might exhibit potential for the synthesis of molecules of pharmacological interest.
Collapse
Affiliation(s)
- Esra Korkmaz
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Metin Zora
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| |
Collapse
|
4
|
Ten years of progress in the synthesis of six-membered N-heterocycles from alkynes and nitrogen sources. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130876] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
5
|
Yilmaz ES, Zora M. A New Strategy for the Synthesis of 4‐Propargyl‐Substituted 1
H
‐Pyrroles from
N
‐(5‐phenyl‐2,4‐pentadiynyl) β‐Enaminones. ChemistrySelect 2019. [DOI: 10.1002/slct.201902759] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Elif Serel Yilmaz
- Department of ChemistryMiddle East Technical University 06800 Ankara Turkey
| | - Metin Zora
- Department of ChemistryMiddle East Technical University 06800 Ankara Turkey
| |
Collapse
|
6
|
Kelgokmen Y, Zora M. A new strategy for the synthesis of pyridines from N-propargylic β-enaminothiones. Org Biomol Chem 2019; 17:2529-2541. [DOI: 10.1039/c8ob03180k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A new robust method for the synthesis of 2,4,5-trisubstituted pyridines with high efficiency and broad functional group tolerance is described.
Collapse
Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| | - Metin Zora
- Department of Chemistry
- Middle East Technical University
- 06800 Ankara
- Turkey
| |
Collapse
|
7
|
Shen J, Chen Y, Chen T, Zou Z, Feng Y, You Q. Facile synthesis of 2-(2-aminobenzoyl)benzoic acids via a base-promoted aerobic cascade reaction. Org Chem Front 2019. [DOI: 10.1039/c9qo00101h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A novel base-promoted aerobic cascade reaction for the regiospecific synthesis of 2-(2-aminobenzoyl)benzoic acids under metal-free conditions is developed.
Collapse
Affiliation(s)
- Jinhai Shen
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
- Fujian Key Laboratory of Molecular Medicine (Huaqiao University)
| | - Yangxin Chen
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
| | - Ting Chen
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
| | - Zhongai Zou
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
| | - Yadong Feng
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
| | - Qihua You
- School of Environment and Public Health
- Xiamen Huaxia University
- Xiamen 361024
- China
| |
Collapse
|
8
|
Zhang H, Shen J, Yang Z, Cui X. PIDA-mediated intramolecular oxidative C–N bond formation for the direct synthesis of quinoxalines from enaminones. RSC Adv 2019; 9:7718-7722. [PMID: 35521175 PMCID: PMC9061175 DOI: 10.1039/c9ra01200a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 02/18/2019] [Indexed: 11/30/2022] Open
Abstract
A intramolecular oxidative C(sp2)–N bond formation mediated by hypervalent iodine(iii) to obtain quinoxalines from readily available N-(2-acetaminophenyl)enaminones was developed. A tandem process involving PIDA-mediated intramolecular condensation cyclization and a subsequent elimination was postulated, which was highly efficient and metal-free under mild conditions. Moreover, flexible structural modifications of quinoxalines bearing carbonyl groups are of interest for further transformations as building blocks in organic synthesis. An expedient hypervalent iodine(iii)-mediated approach to obtain substituted quinoxalines from readily available enaminones has been developed under mild conditions.![]()
Collapse
Affiliation(s)
- Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Jinhai Shen
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Zhenhui Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| |
Collapse
|
9
|
Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| | - Metin Zora
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
| |
Collapse
|
10
|
Zhang H, Shen J, Cheng G, Wu B, Cui X. Base-Promoted Synthesis of 2,4,6-Triarylpyridines from Enaminones and Chalcones. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800231] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Jinhai Shen
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Guolin Cheng
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Binjie Wu
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs; School of Biomedical Sciences; Huaqiao University; Xiamen 361021 P. R. China
| |
Collapse
|
11
|
Weng Y, Kuai C, Lv W, Cheng G. Synthesis of 2-Aminopyridines via a Base-Promoted Cascade Reaction of N-Propargylic β-Enaminones with Formamides. J Org Chem 2018; 83:5002-5008. [PMID: 29651837 DOI: 10.1021/acs.joc.8b00128] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
N-Substituted formamides as nucleophiles react with in situ-generated 1,4-oxazepines from N-propargylic β-enaminones followed by spontaneous N-deformylation to deliver densely substituted 2-aminopyridines in good yields (31-88%). The formyl group is found to be a superior traceless activating group of free amines and would ultimately be removed in situ. This reaction proceeds smoothly at room temperature, in the presence of NaOH as sole additive, without protection from the atmosphere and generates H2O and sodium formate as byproducts.
Collapse
Affiliation(s)
- Yunxiang Weng
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Changsheng Kuai
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Weiwei Lv
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| | - Guolin Cheng
- College of Materials Science & Engineering , Huaqiao University , Xiamen 361021 , China
| |
Collapse
|
12
|
Feng T, Tian M, Zhang X, Fan X. Tunable Synthesis of Functionalized Cyclohexa-1,3-dienes and 2-Aminobenzophenones/Benzoate from the Cascade Reactions of Allenic Ketones/Allenoate with Amines and Enones. J Org Chem 2018; 83:5313-5322. [DOI: 10.1021/acs.joc.8b00473] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tian Feng
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Miaomiao Tian
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xinying Zhang
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| | - Xuesen Fan
- School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Henan Normal University, Xinxiang, Henan 453007, China
| |
Collapse
|
13
|
Yu LZ, Wei HZ, Shi M. Base-Catalyzed Cascade Reaction of ortho
-(Propargylamino)aryl Ketones with N-, O-, or S-Based Nucleophiles for the Synthesis of 3-Functionalized Quinoline Scaffolds. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Liu-Zhu Yu
- State Key Laboratory of Organometallic Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
| | - Hao-Zhao Wei
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry; Center for Excellence in Molecular Synthesis; Shanghai Institute of Organic Chemistry; University of Chinese Academy of Science; Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 People's Republic of China
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 People's Republic of China
- State Key Laboratory and Institute of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
| |
Collapse
|
14
|
Zhang H, Shen J, Cheng G, Feng Y, Cui X. One-Pot Synthesis of Benzo[b][1,4]oxazins via Intramolecular Trapping Iminoenol. Org Lett 2018; 20:664-667. [PMID: 29338245 DOI: 10.1021/acs.orglett.7b03804] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
A highly atom-efficient "one-pot" protocol has been developed to construct multisubstituted 2-hydroxy-benzo[b][1,4]oxazins starting from N-(2-hydroxylaryl)enaminones. This procedure comprises a PIDA-mediated intramolecular iminoenol tautomer trapping reaction, followed by Et3N-promoted aerobic oxidative ring construction. In particular, an O2 molecule from air served as the oxygen source of the hydroxyl group in the titled products. This reaction proceeded smoothly at room temperature under air atmosphere and metal-free conditions.
Collapse
Affiliation(s)
- Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University , Xiamen 361021, P. R. China
| | - Jinhai Shen
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University , Xiamen 361021, P. R. China
| | - Guolin Cheng
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University , Xiamen 361021, P. R. China
| | - Yadong Feng
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University , Xiamen 361021, P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University , Xiamen 361021, P. R. China
| |
Collapse
|
15
|
|
16
|
Kelgokmen Y, Cayan Y, Zora M. Zinc Chloride Mediated Synthesis of 1,4-Oxazepines fromN-Propargylic β-Enaminones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701433] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yilmaz Kelgokmen
- Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
| | - Yasemin Cayan
- Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
| | - Metin Zora
- Department of Chemistry; Middle East Technical University; 06800 Ankara Turkey
| |
Collapse
|
17
|
Cheng G, Xue L, Weng Y, Cui X. Transition-Metal-Free Cascade Approach toward 2-Alkoxy/2-Sulfenylpyridines and Dihydrofuro[2,3-b]pyridines by Trapping In Situ Generated 1,4-Oxazepine. J Org Chem 2017; 82:9515-9524. [DOI: 10.1021/acs.joc.7b01541] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Guolin Cheng
- College of Materials Science & Engineering, Huaqiao University, Xiamen 361021, China
| | - Lulu Xue
- Engineering
Research Center of Molecular Medicine, Ministry of Education, Key
Laboratory of Molecular Medicine of Fujian Province, Key Laboratory
of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine
and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Yunxiang Weng
- Engineering
Research Center of Molecular Medicine, Ministry of Education, Key
Laboratory of Molecular Medicine of Fujian Province, Key Laboratory
of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine
and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| | - Xiuling Cui
- Engineering
Research Center of Molecular Medicine, Ministry of Education, Key
Laboratory of Molecular Medicine of Fujian Province, Key Laboratory
of Xiamen Marine and Gene Drugs, Institutes of Molecular Medicine
and School of Biomedical Sciences, Huaqiao University, Xiamen 361021, China
| |
Collapse
|
18
|
Arshadi S, Vessally E, Edjlali L, Ghorbani-Kalhor E, Hosseinzadeh-Khanmiri R. N-Propargylic β-enaminocarbonyls: powerful and versatile building blocks in organic synthesis. RSC Adv 2017. [DOI: 10.1039/c7ra00746a] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nitrogen-containing heterocyclic compounds are not only prevalent in an extensive number of natural products and synthetic pharmaceuticals but are also used as building blocks in organic synthesis.
Collapse
Affiliation(s)
| | | | - Ladan Edjlali
- Department of Chemistry
- Tabriz Branch
- Islamic Azad University
- Tabriz
- Iran
| | | | | |
Collapse
|
19
|
Yang X, Hu F, Wang Y, Yang C, Zou X, Liu J, Zhang Q. Base-catalyzed cascade synthesis of 2,3-dihydrofuro[2,3-b]pyridines and 2,3-dihydro-1H-pyrrolo[2,3-b]pyridines from N-propargylic β-enaminones. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03308g] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A novel protocol to prepare dihydrofuropyridine and dihydropyrrolopyridine derivatives from KOH-catalyzed reactions between N-propargylic β-enaminones and arylaldehydes or N-sulfonyl imines has been developed.
Collapse
Affiliation(s)
- Xiaobing Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
- Department of Chemistry
| | - Fangzhong Hu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Yang Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Chiming Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
- Department of Chemistry
| | - Xiaomao Zou
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Jiahui Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Qichun Zhang
- School of Materials Science Engineering
- Nanyang Technological University
- Singapore
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
| |
Collapse
|
20
|
Zhao X, Zhang J, Zheng Z, Xu R. Facile Synthesis for Benzo-1,4-Oxazepine Derivatives by Tandem Transformation of C-N Coupling/C-H Carbonylation. Molecules 2016; 22:E53. [PMID: 28042841 PMCID: PMC6155786 DOI: 10.3390/molecules22010053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/22/2016] [Accepted: 12/28/2016] [Indexed: 11/16/2022] Open
Abstract
A tandem transformation of C-N coupling/C-H carbonylation has been developed for the synthesis of benzo-1,4-oxazepine pharmaceutically derivatives. Notably, this reaction was accomplished by various phenylamine with ally halides under carbon dioxide atmosphere employing 2-(2-dimethylamino-vinyl)-1H-inden-1-olcatalyzed. Furthermore, under the optimized conditions, various benzo-1,4-oxazepine derivatives were obtained in good yields. Finally, a plausible CuI/CuIII mechanism of C-N coupling/C-H carbonylation transformation was proposed.
Collapse
Affiliation(s)
- Xiaojia Zhao
- Department of Biology and Environment, Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Jiong Zhang
- Department of Biology and Environment, Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Zeqin Zheng
- Department of Biology and Environment, Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Runsheng Xu
- Department of Biology and Environment, Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| |
Collapse
|
21
|
|
22
|
Hedidi M, Erb W, Bentabed-Ababsa G, Chevallier F, Picot L, Thiéry V, Bach S, Ruchaud S, Roisnel T, Dorcet V, Mongin F. Synthesis of N-pyridyl azoles using a deprotometalation-iodolysis-N-arylation sequence and evaluation of their antiproliferative activity in melanoma cells. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.056] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|