1
|
Tang Y, Huang M, Jiang L, Zhang X, Zheng S, Yang Y, Chen XY. Visible-Light-Irradiated Multicomponent Reactions of Aliphatic Amines, Propiolate Acid Esters, and CF 3 SO 2 Na for Accessing β-CF 3 Enamines. Chemistry 2023; 29:e202302249. [PMID: 37572319 DOI: 10.1002/chem.202302249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/14/2023]
Abstract
A novel one-pot two-step multicomponent reaction has been achieved for the preparation of β-CF3 enamines by using different aliphatic amines, propiolates, and CF3 SO2 Na as starting material. In this protocol, various aliphatic amines including primary amines, cyclic or acyclic secondary amines were demonstrated to be good coupling partners, and different β-CF3 enamines were obtained in moderate to good yields. Among them, the primary aliphatic amines only gave pure (E)-β-CF3 enamines as products. The synthetic utility of the MCRs strategy was further demonstrated by mild conditions, gram-scale synthesis and natural sunlight-induced protocol. Preliminary mechanistic studies suggest that this trifluoromethylation of C(sp2 )-H involves radical process.
Collapse
Affiliation(s)
- Yisong Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Mingyang Huang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Liang Jiang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Xiaotong Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Shaojun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Yong Yang
- College of Mechanical Engineering, Suzhou University of Science and Technology, Suzhou, 320500, P. R. China
| | - Xiao Yun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| |
Collapse
|
2
|
A Catalyst‐ and Solvent‐ Free Synthesis of Tetra‐Substituted Pyrroles by Multicomponent Reaction. ChemistrySelect 2023. [DOI: 10.1002/slct.202204564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
3
|
Ma J, Tan Y, Tang Y, Cui X, Xu J, Li Y, Wang X. Base‐Promoted Cascade C–N and C–C Formation: An Approach to Pyrido[1,2‐a]pyrimidinones from Ynones and 2‐Methylpyrimidin‐4‐ols. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jianting Ma
- Hainan Medical University School of Pharmacy CHINA
| | - Yinfeng Tan
- Hainan Medical University School of Pharmacy CHINA
| | - Yao Tang
- Hainan Medical University School of Pharmacy CHINA
| | - Xue Cui
- Hainan Medical University School of Pharmacy CHINA
| | - Junyu Xu
- Hainan Medical University School of Pharmacy CHINA
| | - Youbin Li
- Hainan Medical University School of Pharmacy CHINA
| | - Xuesong Wang
- Hainan Medical University school of pharmacy Xueyuan Road 571199 Haikou CHINA
| |
Collapse
|
4
|
Lu F, Chen Y, Song X, Yu C, Li T, Zhang K, Yao C. NHC-Catalyzed [2 + 4] Annulation of Alkynyl Ester with Chalcone. J Org Chem 2022; 87:6902-6909. [PMID: 35486449 DOI: 10.1021/acs.joc.2c00022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An NHC-catalyzed [2 + 4] cyclization of alkynyl ester with α,β-unsaturated ketone to form a pyran scaffold was developed successfully. The cheap and easily available starting materials, mild reaction conditions, moderate to excellent yields, and high atom economy make this strategy attractive for the syntheses of highly substituted 4H-pyran derivatives.
Collapse
Affiliation(s)
- Fangfang Lu
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Yangxu Chen
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Xue Song
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Chenxia Yu
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Tuanjie Li
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Kai Zhang
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| | - Changsheng Yao
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P. R. China
| |
Collapse
|
5
|
Pan M, Wang X, Tong Y, Qiu X, Zeng X, Xiong B. Ruthenium-catalyzed acceptorless dehydrogenative coupling of amino alcohols and ynones to access 3-acylpyrroles. Chem Commun (Camb) 2022; 58:2379-2382. [PMID: 35080540 DOI: 10.1039/d1cc07018e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, a new strategy for the direct synthesis of functionalized pyrroles from β-amino alcohols and ynones via ruthenium-catalyzed acceptorless dehydrogenative coupling has been demonstrated. This developed methodology proceeds in an atom- and step-economic fashion together with the merits of broad substrate scope, operational simplicity, and water and hydrogen gas as the sole by-products, which provides an alternative and sustainable way to access functionalized pyrroles. Further, this method was applied to the rapid synthesis of the COX-1/COX-2 inhibitor and boron dipyrromethene derivative successfully.
Collapse
Affiliation(s)
- Mingshi Pan
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| | - Xiabin Wang
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| | - Yixin Tong
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| | - Xiaodong Qiu
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| | - Xiaobao Zeng
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| | - Biao Xiong
- School of Pharmacy, Nantong University, 19 Qixiu Road, Nantong, Jiangsu Province 226001, China.
| |
Collapse
|
6
|
Fu L, Wan JP, Zhou L, Liu Y. Copper-catalyzed C-H/N-H annulation of enaminones and alkynyl esters for densely substituted pyrrole synthesis. Chem Commun (Camb) 2022; 58:1808-1811. [PMID: 35040446 DOI: 10.1039/d1cc06768k] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein, the copper-catalyzed annulation of enaminones with alkynyl esters for the facile synthesis of different pyrroles with a 2,3,4,5-tetrasubstituted structure has been developed. With Cu(OAc)2 as the only catalyst, the tunable synthesis of 2-vinyl and 2,3-dicarboxyl-functionalized pyrroles has been achieved by using terminal and internal alkynyl esters, respectively. The synthesis of 2-vinyl pyrroles represents the first example accessing 2-vinyl substituted pyrroles via direct cascade reactions involving vinylation and pyrrole ring formation.
Collapse
Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China. .,College of Chemistry and Bio-Engineering, Yichun University, Yichun, Jiangxi 336000, P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Liyun Zhou
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.
| |
Collapse
|
7
|
Li W, Shi R, Chen S, Zhang X, Peng W, Chen S, Li J, Xu XM, Zhu YP, Wang X. Synthesis of Diverse Pentasubstituted Pyrroles by a Gold(I)-Catalyzed Cascade Rearrangement-Cyclization of Tertiary Enamide. J Org Chem 2022; 87:3014-3024. [DOI: 10.1021/acs.joc.1c02837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenzhong Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Ran Shi
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Sen Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xuesi Zhang
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Wei Peng
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Si Chen
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Jiazhu Li
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Xin-Ming Xu
- College of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China
| | - Yan-Ping Zhu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation, Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Xueyuan Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| |
Collapse
|
8
|
Xia XF, Niu YN. Recent developments in the synthesis of nitrogen-containing heterocycles from β-aminovinyl esters/ketones as CC-N donors. Org Biomol Chem 2022; 20:282-295. [PMID: 34877952 DOI: 10.1039/d1ob01998h] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nitrogen-containing heterocycles are ubiquitous fragments of numerous natural products, pharmaceuticals, designed bioactive drug candidates and agrochemicals. During the past few decades, these compounds have received considerable attention from the synthetic chemistry community, and great efforts have been focused on the development of concise and efficient methods for the synthesis of these heterocyclic skeletons. In this review, we summarize a diverse range of synthetic methods employing β-aminovinyl esters(ketones) as key CC-N-synthons to furnish useful bioactive heterocyclic frameworks, such as quinolines, pyridines, pyrazines, pyrroles, indoles, oxazoles, imidazoles, thiazoles, isothiazoles, pyrazoles, triazoles, and azepines, thus offering new opportunities and expanding the toolbox of synthetic chemistry reactions.
Collapse
Affiliation(s)
- Xiao-Feng Xia
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu, 214122, People's Republic of China.
| | - Yan-Ning Niu
- Department of Teaching and Research, Nanjing Forestry University, Huai'an, Jiangsu, 223003, People's Republic of China.
| |
Collapse
|
9
|
Cao S, Ma C, Teng X, Chen R, Li Y, Yuan W, Zhu Y. Facile synthesis of fully substituted 1 H-imidazoles from oxime esters via dual photoredox/copper catalyzed multicomponent reactions. Org Chem Front 2022. [DOI: 10.1039/d2qo01475k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A novel and efficient photoredox/copper cocatalyzed domino cyclization of oxime esters, aldehydes, and amines has been achieved, affording a broad range of fully substituted 1H-imidazoles in good yields.
Collapse
Affiliation(s)
- Shujun Cao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Chongchong Ma
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinjie Teng
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Rongshun Chen
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yun Li
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Weidong Yuan
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Yingguang Zhu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing 210095, China
| |
Collapse
|
10
|
Pagadala R, Kasi V, Shabalala NG, Jonnalagadda SB. Ultrasound-assisted multicomponent synthesis of heterocycles in water – A review. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103544] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
|
11
|
Arai Y, Oguri H. Divergent synthesis of functionalized dihydropyridines and pyrroles via metal-free one-pot domino reactions of a gem-disubstituted propargyl amine and an alkynyl sulfone. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153283] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
|
12
|
El‐Remaily MAEAAA, El‐Metwaly NM, Bawazeer TM, Khalifa ME, El‐Dabea T, Abu‐Dief AM. Efficient and recoverable novel pyranothiazol Pd (II), Cu (II) and Fe(III) catalysts in simple synthesis of polyfunctionalized pyrroles: Under mild conditions using ultrasonic irradiation. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6370] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Nashwa M. El‐Metwaly
- Chemistry Department, Faculty of Applied Science Umm Al‐Qura University Mecca Saudi Arabia
- Chemistry Department, Faculty of Science Mansoura University Mansoura Egypt
| | - Tahani M. Bawazeer
- Chemistry Department, Faculty of Applied Science Umm Al‐Qura University Mecca Saudi Arabia
| | - Mohamed E. Khalifa
- Department of Chemistry, College of Science Taif University Taif Saudi Arabia
| | - Tarek El‐Dabea
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
| | - Ahmed M. Abu‐Dief
- Chemistry Department, Faculty of Science Sohag University Sohag Egypt
- Chemistry Department, College of Science Taibah University Medina Saudi Arabia
| |
Collapse
|
13
|
Cao H, Liu XJ, Li PF, Bie FS, Shi YJ, Yan P, Han Y. Microwave-assisted synthesis of β-amino-α,β-unsaturated esters: a rapid and efficient access to (Z)-methyl 3-amino-2-substituted acrylate. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1923751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Han Cao
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Xue-jing Liu
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Peng-fei Li
- Shandong Taihe Water, Treatment Technologies Co., Ltd, Zaozhuang, P. R. China
| | - Fu-sheng Bie
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Yi-jun Shi
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Peng Yan
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| | - Ying Han
- Engineering and Technology Research Institute of Lunan Coal Chemical, College of Chemistry, Chemical Engineering and Materials Science, Zaozhuang University, Zaozhuang, Shandong Province, P. R. China
| |
Collapse
|
14
|
Chemoselective synthesis of β-enaminones from ynones and aminoalkyl-, phenol- and thioanilines under metal-free conditions. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01599-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Xiong J, Mu Z, Yao G, Zhang J, Feng Q, He H, Pang Y, Shi H, Ding M. One‐Pot
Synthesis of Polysubstituted Pyrroles
via
Sequential Ketenimine Formation/Ag(I)‐Catalyzed Alkyne Cycloisomerisation Starting from Ylide Adducts. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jun Xiong
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Zhi‐Ying Mu
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Gang Yao
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Jia‐An Zhang
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Qi‐Xun Feng
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Hui‐Ting He
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Yong‐Long Pang
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Hang Shi
- School of Pharmacy, Hubei University of Science and Technology Xianning Hubei 437100 China
| | - Ming‐Wu Ding
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Central China Normal University Wuhan Hubei 430079 China
| |
Collapse
|
16
|
Huang L, Luo C, Xu P, Liu B, Zhang D, Zhang J, Pang D, Gong Y. Synthesis of methyl 1,
5‐diaryl‐1
H
‐pyrrole‐2‐carboxylates via acid‐catalyzed ring‐opening/ring‐closure sequence. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Long Huang
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Chenghao Luo
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Panpan Xu
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan People's Republic of China
| | - Bing Liu
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Duntie Zhang
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Jing Zhang
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Denghong Pang
- Engineer Center of New Generation Tobacco of China Tabacco Hubei Industrial Co. Ltd Wuhan People's Republic of China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan People's Republic of China
| |
Collapse
|
17
|
Fu L, Liu Y, Wan JP. Pd-Catalyzed Triple-Fold C(sp 2)-H Activation with Enaminones and Alkenes for Pyrrole Synthesis via Hydrogen Evolution. Org Lett 2021; 23:4363-4367. [PMID: 34013729 DOI: 10.1021/acs.orglett.1c01301] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The synthesis of NH-free pyrroles via Pd-catalyzed annulation of enaminones and alkenes is reported. With the catalysis of Pd(II), the activation of triple C(sp2)-H bonds, including one internal C(sp2)-H bond in enaminone, has been activated to provide various pyrroles. The interesting evolution of hydrogen gas from the reactions has been observed by a hydrogen detector.
Collapse
Affiliation(s)
- Leiqing Fu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China.,College of Chemistry and Bio-Engineering, Yichun University, Yichun, Jiangxi 336000, P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| | - Jie-Ping Wan
- College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, P. R. China
| |
Collapse
|
18
|
Khan I, Ibrar A, Zaib S. Alkynoates as Versatile and Powerful Chemical Tools for the Rapid Assembly of Diverse Heterocycles under Transition-Metal Catalysis: Recent Developments and Challenges. Top Curr Chem (Cham) 2021; 379:3. [PMID: 33398642 DOI: 10.1007/s41061-020-00316-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/16/2020] [Indexed: 12/15/2022]
Abstract
Heterocycles, heteroaromatics and spirocyclic entities are ubiquitous components of a wide plethora of synthetic drugs, biologically active natural products, marketed pharmaceuticals and agrochemical targets. Recognizing their high proportion in drugs and rich pharmacological potential, these invaluable structural motifs have garnered significant interest, thus enabling the development of efficient catalytic methodologies providing access to architecturally complex and diverse molecules with high atom-economy and low cost. These chemical processes not only allow the formation of diverse heterocycles but also utilize a range of flexible and easily accessible building units in a single operation to discover diversity-oriented synthetic approaches. Alkynoates are significantly important, diverse and powerful building blocks in organic chemistry due to their unique and inherent properties such as the electronic bias on carbon-carbon triple bonds posed by electron-withdrawing groups or the metallic coordination site provided by carbonyl groups. The present review highlights the comprehensive picture of the utility of alkynoates (2007-2019) for the synthesis of various heterocycles (> 50 types) using transition-metal catalysts (Ru, Rh, Pd, Ir, Ag, Au, Pt, Cu, Mn, Fe) in various forms. The valuable function of versatile alkynoates (bearing multifunctional groups) as simple and useful starting materials is explored, thus cyclizing with an array of coupling partners to deliver a broad range of oxygen-, nitrogen-, sulfur-containing heterocycles alongside fused-, and spiro-heterocyclic compounds. In addition, these examples will also focus the scope and reaction limitations, as well as mechanistic investigations into the synthesis of these heterocycles. The biological significance will also be discussed, citing relevant examples of drug molecules highlighting each class of heterocycles. This review summarizes the recent developments in the synthetic methods for the synthesis of various heterocycles using alkynoates as readily available starting materials under transition-metal catalysis.
Collapse
Affiliation(s)
- Imtiaz Khan
- Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
- Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Aliya Ibrar
- Department of Chemistry, Faculty of Natural Sciences, The University of Haripur, Haripur, KPK-22620, Pakistan
| | - Sumera Zaib
- Department of Biochemistry, Faculty of Life Sciences, University of Central Punjab, Lahore, 54590, Pakistan
| |
Collapse
|
19
|
Xia X, Zhao M, He W, Zou L, San X, Wang D. Metal‐Free Oxidative [5+1] Cyclization of 1,5‐Enynes for the Synthesis of Pyrazine 1‐Oxide. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiao‐Feng Xia
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Mingming Zhao
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Wei He
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Lianghua Zou
- School of Pharmaceutical SciencesJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Xinxin San
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological ColloidsMinistry of EducationSchool of Chemical and Material EngineeringJiangnan University Wuxi Jiangsu 214122 People's Republic of China
| |
Collapse
|
20
|
Saha M, Das AR. Nanocrystalline ZnO: A Competent and Reusable Catalyst for the Preparation of Pharmacology Relevant Heterocycles in the Aqueous Medium. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/2213346107666200218122718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
:Nanoparticle catalyzed synthesis is a green and convenient method to achieve most of the chemical transformations in water or other green solvents. Nanoparticle ensures an easy isolation process of catalyst as well as products from the reaction mixture avoiding the hectic work up procedure. Zinc oxide is a biocompatible, environmentally benign and economically viable nanocatalyst with effectivity comparable to the other metal nanocatalyst employed in several reaction strategies. This review mainly focuses on the recent applications of zinc oxide in the synthesis of biologically important heterocyclic molecules under sustainable reaction conditions.:Application of zinc oxide in organic synthesis: Considering the achievable advantages of this nanocatalyst, presently several research groups are paying attention in anchoring zincoxide or its modified structure in several types of organic conversions e.g. multicomponent reactions, ligand-free coupling reactions, cycloaddition reaction, etc. The advantages and limitations of this nanocatalyst are also demonstrated. The present study aims to highlight the recent multifaceted applications of ZnO towards the synthesis of diverse heterocyclic motifs. Being a promising biocompatible nanoparticle, this catalyst has an important contribution in the fields of synthetic chemistry and medicinal chemistry.
Collapse
Affiliation(s)
- Moumita Saha
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
| | - Asish R. Das
- Department of Chemistry, University of Calcutta, Kolkata-700009, India
| |
Collapse
|
21
|
Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
| |
Collapse
|
22
|
Liu RH, Shen ZY, Wang C, Loh TP, Hu XH. Selective Dehydrogenative Acylation of Enamides with Aldehydes Leading to Valuable β-Ketoenamides. Org Lett 2020; 22:944-949. [PMID: 31971809 DOI: 10.1021/acs.orglett.9b04495] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have presented a unique example of dehydrogenative acylation of enamides with aldehydes enabled by an earth-abundant iron catalyst. The protocol provides the straightforward access to valuable β-ketoenamides with ample substrate scope and excellent functional group tolerance. Notably, distinct C-H acylation of enamide rather than at N-H moiety site occurs with absolute Z-selectivity was observed. Late-stage modifications of complex molecules and versatile synthetic utility of β-ketoenamides further highlight the practicability of this transformation.
Collapse
Affiliation(s)
- Rui-Hua Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Zhen-Yao Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Cong Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
| | - Xu-Hong Hu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| |
Collapse
|
23
|
Yu Y, Wang XY, Peng JY, Liu T, Zhao YL. Copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes: synthesis of fully substituted indoles. Chem Commun (Camb) 2020; 56:9815-9818. [DOI: 10.1039/d0cc00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes has been developed. This reaction provides a new method for the synthesis of fully substituted indoles by formation of four new bonds and two rings in a single step.
Collapse
Affiliation(s)
- Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xin-Yu Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Ju-Yin Peng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Tao Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| |
Collapse
|
24
|
Duan J, Mao Y, Zhang L, Zhu N, Fang Z, Guo K. Copper‐Catalyzed [3+2] Annulation of 2‐Arylidene‐1,3‐Indandiones with N‐Acetyl Enamides for the Synthesis of Spiropyrrolines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901333] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jindian Duan
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
| | - Yiyang Mao
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
| | - Lei Zhang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu Rd S., Nanjing 211816 China
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University 30 Puzhu Rd S. Nanjing 211816 China
| |
Collapse
|
25
|
Liu P, Yang M, Gong Y, Yu Y, Zhao YL. Copper-Catalyzed Cascade Cyclization Reaction of Enamines and Electron-Deficient Terminal Alkynes: Synthesis of Polysubstituted Pyrido[1,2-a]indoles. Org Lett 2019; 22:36-40. [DOI: 10.1021/acs.orglett.9b03739] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pei Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ming Yang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yue Gong
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Faculty of Chemistry, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
26
|
Huo J, He G, Chen W, Hu X, Deng Q, Chen D. A minireview of hydroamination catalysis: alkene and alkyne substrate selective, metal complex design. BMC Chem 2019; 13:89. [PMID: 31384836 PMCID: PMC6661821 DOI: 10.1186/s13065-019-0606-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 06/29/2019] [Indexed: 01/01/2023] Open
Abstract
Organic compounds that contain nitrogen are very important intermediates in pharmaceutical and chemical industry. Hydroamination is the reaction that can form C-N bond with high atom economy. The research progress in metals catalyzed hydroamination of alkenes and alkynes from the perspective of reaction mechanism is categorized and summarized.
Collapse
Affiliation(s)
- Jingpei Huo
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Guozhang He
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Weilan Chen
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Xiaohong Hu
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Qianjun Deng
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| | - Dongchu Chen
- Institute of Electrochemical Corrosion, College of Materials Science and Energy Engineering, Foshan University, Foshan, 528000 People’s Republic of China
| |
Collapse
|
27
|
Huang W, Zhu C, Li M, Yu Y, Wu W, Tu Z, Jiang H. TBAI or KI-Promoted Oxidative Coupling of Enamines and N
-Tosylhydrazine: An Unconventional Method toward 1,5- and 1,4,5-Substituted 1,2,3-Triazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800487] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Chuanle Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Minke Li
- Drug Discovery Pipeline & Guangdong Provincial Key Laboratory of Biocomputing; Guangzhou Institutes of Biomedicine and Health; Guangzhou 510530 People's Republic of China
| | - Yue Yu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| | - Zhengchao Tu
- Drug Discovery Pipeline & Guangdong Provincial Key Laboratory of Biocomputing; Guangzhou Institutes of Biomedicine and Health; Guangzhou 510530 People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, Guangdong Engineering Research Center for Green Fine Chemicals, School of Chemistry and Chemical Engineering; South China University of Technology; Guangzhou 510640 People's Republic of China
| |
Collapse
|
28
|
An efficient synthesis of pentasubstituted pyrroles: one-pot four-component reaction of arylamine, acetylenedicarboxylate, arylglyoxal, and symmetrical 1,3-dicarbonyl compounds. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-018-1393-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
29
|
Zhang M, Di X, Zhang M, Zhang J. Gold(I)-Catalyzed Diastereo- and Enantioselective Synthesis of Polysubstituted Pyrrolo[3,4-d
][1,2]oxazines. CHINESE J CHEM 2018. [DOI: 10.1002/cjoc.201700575] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Mei Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Xiaoyu Di
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Mingrui Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry; East China Normal University, 3663 N, Zhongshan Road; Shanghai 200062 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences; Shanghai 200032 China
| |
Collapse
|
30
|
Andreou D, Kallitsakis MG, Loukopoulos E, Gabriel C, Kostakis GE, Lykakis IN. Copper-Promoted Regioselective Synthesis of Polysubstituted Pyrroles from Aldehydes, Amines, and Nitroalkenes via 1,2-Phenyl/Alkyl Migration. J Org Chem 2018; 83:2104-2113. [PMID: 29355321 DOI: 10.1021/acs.joc.7b03051] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The facile copper-catalyzed synthesis of polysubstituted pyrroles from aldehydes, amines, and β-nitroalkenes is reported. Remarkably, the use of α-methyl-substituted aldehydes provides efficient access to a series of tetra- and pentasubstituted pyrroles via an overwhelming 1,2-phenyl/alkyl migration. The present methodology is also accessible to non α-substituted aldehydes, yielding the corresponding trisubstituted pyrroles. On the contrary, the use of ketones, in place of aldehydes, does not promote the organic transformation, signifying the necessity of α-substituted aldehydes. The reaction proceeds under mild catalytic conditions with low catalyst loading (0.3-1 mol %), a broad scope, very good functional-group tolerance, and high yields and can be easily scaled up to more than 3 mmol of product, thus highlighting a useful synthetic application of the present catalytic protocol. Based on formal kinetic studies, a possible radical pathway is proposed that involves the formation of an allylic nitrogen radical intermediate, which in turn reacts with the nitroalkene to yield the desired pyrrole framework via a radical 1,2-phenyl or alkyl migration.
Collapse
Affiliation(s)
| | | | - Edward Loukopoulos
- Department of Chemistry, School of Life Sciences, University of Sussex , Brighton BN19QJ, United Kingdom
| | | | - George E Kostakis
- Department of Chemistry, School of Life Sciences, University of Sussex , Brighton BN19QJ, United Kingdom
| | | |
Collapse
|
31
|
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
|
32
|
Zhu JN, Chen LL, Zhou RX, Li B, Shao ZY, Zhao SY. Copper-Catalyzed Oxidative Cyclization of Maleimides with Amines and Alkyne Esters: Direct Access to Fully Substituted Dihydropyrroles and Pyrrole Derivatives. Org Lett 2017; 19:6044-6047. [DOI: 10.1021/acs.orglett.7b02670] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Nan Zhu
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Lei-Lei Chen
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Run-Xiang Zhou
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Bo Li
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Zhi-Yu Shao
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
| | - Sheng-Yin Zhao
- Department of Chemistry, Donghua University, No. 2999 North Renmin Road, Shanghai 201620, P. R. China
- State Key Laboratory of Bioorganic & Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| |
Collapse
|
33
|
Cunha S, Serafim JC, de Santana LLB, Damasceno F, Correia JTM, Santos AO, Oliveira M, Ribeiro J, Amparo J, Costa SL. One-Step Synthesis of 3,4-Diphenyl-2-pyrrolinones by Solvent-Free and Bi 2
O 3
-Catalyzed Approaches and Cytotoxicity Screening Against Glioma Cells. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Silvio Cunha
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - José Claudio Serafim
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - Lourenço Luis Botelho de Santana
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - Fabiano Damasceno
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - José Tiago Menezes Correia
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - Airam Oliveira Santos
- Instituto de Química; Universidade Federal da Bahia; Campus de Ondina 40170-115 Salvador Bahia Brazil
- INCT em Energia e Ambiente; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Campus de Ondina Salvador Bahia 40170-290 Brazil
| | - Mona Oliveira
- Instituto de Ciências da Saúde, Departamento de Biofunção/Bioquímica; Laboratório de Neuroquímica e Biologia Celular; Salvador Bahia 40.110-100 Brazil
- INCT em Neurociência Translacional; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Salvador Bahia 40170-290 Brazil
| | - Janaína Ribeiro
- Instituto de Ciências da Saúde, Departamento de Biofunção/Bioquímica; Laboratório de Neuroquímica e Biologia Celular; Salvador Bahia 40.110-100 Brazil
- INCT em Neurociência Translacional; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Salvador Bahia 40170-290 Brazil
| | - Jéssika Amparo
- Instituto de Ciências da Saúde, Departamento de Biofunção/Bioquímica; Laboratório de Neuroquímica e Biologia Celular; Salvador Bahia 40.110-100 Brazil
- INCT em Neurociência Translacional; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Salvador Bahia 40170-290 Brazil
| | - Silvia Lima Costa
- Instituto de Ciências da Saúde, Departamento de Biofunção/Bioquímica; Laboratório de Neuroquímica e Biologia Celular; Salvador Bahia 40.110-100 Brazil
- INCT em Neurociência Translacional; Instituto Nacional de Ciência e Tecnologia, Universidade Federal da Bahia; Salvador Bahia 40170-290 Brazil
| |
Collapse
|
34
|
Rezvanian A, Heravi MM, Shaabani Z, Tajbakhsh M. Five-component synthesis of dihydropyridines based on diketene. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
35
|
Ravi AJ, Vinduvahini M, Vinayaka AC, Sadashiva MP, Devarajegowda HC. ( Z)-2-(4-Methoxyanilino)-1,4-diphenylbut-2-ene-1,4-dione. IUCRDATA 2017. [DOI: 10.1107/s2414314617000438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In the molecule of the title compound, C23H19NO3, the mean plane of the methoxyphenyl ring makes dihedral angles of 51.63 (8) and 50.86 (8)° with the terminal phenyl rings. An intramolecular N—H...O hydrogen bond occurs. The crystal structure features C—H...O hydrogen bonds.
Collapse
|
36
|
Cui HL, Peng LJ, Zhou HL, You XL, Jiang XJ. Stereoselective synthesis of enamino ketones through an aza-Michael/hydrolysis cascade reaction. Org Biomol Chem 2017; 15:5121-5125. [DOI: 10.1039/c7ob01032j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly functionalized (Z)-β-enamino ketones have been prepared from readily available 3,4-dihydroisoquinoline imines and ynones through an aza-Michael/hydrolysis cascade reaction.
Collapse
Affiliation(s)
- Hai-Lei Cui
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Li-Jie Peng
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Hai-Lin Zhou
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Xiao-Lin You
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| | - Xiao-Jie Jiang
- International Academy of Targeted Therapeutics and Innovation
- Chongqing University of Arts and Sciences
- Chongqing 402160
- P.R. China
| |
Collapse
|
37
|
Abe T, Takahashi Y, Matsubara Y, Yamada K. An Ullmann N-arylation/2-amidation cascade by self-relay copper catalysis: one-pot synthesis of indolo[1,2-a]quinazolinones. Org Chem Front 2017. [DOI: 10.1039/c7qo00549k] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have developed a self-relay copper(i)-catalyzed Ullmann N-arylation/2-amidation cascade to form functionalized indolo[1,2-a]quinazolinones in one-pot from easily available indoles with 2-bromobenzamides.
Collapse
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Yuka Takahashi
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Yuki Matsubara
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| | - Koji Yamada
- Faculty of Pharmaceutical Sciences
- Health Sciences University of Hokkaido
- Ishikari-tobetsu
- Japan
| |
Collapse
|
38
|
Pang X, Zhao L, Zhou D, He PY, An Z, Ni JX, Yan R. tert-Butyl nitrite (TBN) as the N atom source for the synthesis of substituted cinnolines with 2-vinylanilines and a relevant mechanism was studied. Org Biomol Chem 2017; 15:6318-6322. [DOI: 10.1039/c7ob01553d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A green method to synthesize cinnolines by 6π electrocyclic reaction with alkenyl amines and TBN has been developed.
Collapse
Affiliation(s)
- XiaoBo Pang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - LianBiao Zhao
- College of Chemical Engineering
- Northwest University for Nationalities
- Lanzhou
- China
| | - DaGang Zhou
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | | | - ZhenYu An
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - Ji Xiang Ni
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| | - RuLong Yan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- Department of Chemistry
- Lanzhou University
- Lanzhou
| |
Collapse
|
39
|
Jiang H, Huang W, Yu Y, Yi S, Li J, Wu W. Transition-metal-free synthesis of β-trifluoromethylated enamines with trifluoromethanesulfinate. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03125d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Direct olefinic C–H trifluoromethylation of enamines is developed under transition metal-free conditions by using Langlois' reagent (NaSO2CF3).
Collapse
Affiliation(s)
- Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wei Huang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Yue Yu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Songjian Yi
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Jiawei Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| |
Collapse
|
40
|
Tan XM, Lai QM, Yang ZW, Long X, Zhou HL, You XL, Jiang XJ, Cui HL. La(OTf)3 catalyzed synthesis of α-aryl tetrasubstituted pyrroles through [4+1] annulation under microwave irradiation. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.122] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
41
|
Ravi AJ, Vinayaka AC, Kumar S, Sadashiva MP, Devarajegowda HC. (2 E)-3-Anilino-1-(2-chlorophenyl)-3-(methylsulfanyl)prop-2-en-1-one. IUCRDATA 2016. [DOI: 10.1107/s2414314616019945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
In the title compound, C16H14ClNOS, the dihedral angle between the aromatic rings is 86.34 (9)° and an intramolecular N—H...O hydrogen bond closes anS(6) ring. The methylsulfanyl group and Cl atom lie to the same side of the molecule. In the crystal, C—H...O hydrogen bonds link the molecules into (010) double sheets.
Collapse
|
42
|
Mangina NSVMR, Kadiyala V, Guduru R, Goutham K, Sridhar B, Karunakar GV. Gold-Catalyzed Intramolecular Regioselective 7-exo-dig Cyclization To Access 3-Methylene-3,4-dihydrobenzo[b]oxepinones. Org Lett 2016; 19:282-285. [DOI: 10.1021/acs.orglett.6b03433] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- N. S. V. M. Rao Mangina
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Veerabhushanam Kadiyala
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Ravinder Guduru
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Kommuru Goutham
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Balasubramanian Sridhar
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| | - Galla V. Karunakar
- Crop
Protection Chemicals Division, ‡Academy of Scientific and Innovative
Research, and ∥Center for X-ray Crystallography, CSIR-Indian Institute of Chemical Technology, Hyderabad, 500007, India
| |
Collapse
|
43
|
George J, Kim HY, Oh K. Regioselective Synthesis of Pyrroles from Alkyne-Isocyanide Click Reactions: An Angle Strain-Induced Bond Migration Approach. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201601017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jimil George
- Center for Metareceptome Research; College of Pharmacy; Chung-Ang University; 84 Heukseok-ro Dongjak Seoul 06974 Republic of Korea
| | - Hun Young Kim
- Center for Metareceptome Research; College of Pharmacy; Chung-Ang University; 84 Heukseok-ro Dongjak Seoul 06974 Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research; College of Pharmacy; Chung-Ang University; 84 Heukseok-ro Dongjak Seoul 06974 Republic of Korea
| |
Collapse
|
44
|
Daw P, Chakraborty S, Garg JA, Ben-David Y, Milstein D. Direct Synthesis of Pyrroles by Dehydrogenative Coupling of Diols and Amines Catalyzed by Cobalt Pincer Complexes. Angew Chem Int Ed Engl 2016; 55:14373-14377. [DOI: 10.1002/anie.201607742] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 09/20/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Prosenjit Daw
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | | | - Jai Anand Garg
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - David Milstein
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| |
Collapse
|
45
|
Daw P, Chakraborty S, Garg JA, Ben-David Y, Milstein D. Direct Synthesis of Pyrroles by Dehydrogenative Coupling of Diols and Amines Catalyzed by Cobalt Pincer Complexes. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607742] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Prosenjit Daw
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | | | - Jai Anand Garg
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - Yehoshoa Ben-David
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| | - David Milstein
- Department of Organic Chemistry; Weizmann Institute; Rehovot 76100 Israel
| |
Collapse
|
46
|
Nagaraju V, Purnachander D, Goutham K, Suresh S, Sridhar B, Karunakar GV. Synthesis of Tetracyclic Tetrahydro-β-carbolines by Acid-Promoted One-Pot Sequential Formation of C−C and C−N Bonds. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600349] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Vemu Nagaraju
- Division of Crop Protection Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Dalovai Purnachander
- Division of Crop Protection Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Academy of Scientific and Innovative Research; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Kommuru Goutham
- Division of Crop Protection Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Academy of Scientific and Innovative Research; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Surisetti Suresh
- Division of Organic and Biomolecular Chemistry; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| | - Galla V. Karunakar
- Division of Crop Protection Chemicals; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
- Academy of Scientific and Innovative Research; CSIR-Indian Institute of Chemical Technology; Hyderabad 500007 India
| |
Collapse
|
47
|
Zhang X, Xu X, Chen G, Yi W. Regioselective Synthesis of 2,3,4-Trisubstituted Pyrroles via Pd(II)-Catalyzed Three-Component Cascade Reactions of Amines, Alkyne Esters, and Alkenes. Org Lett 2016; 18:4864-4867. [DOI: 10.1021/acs.orglett.6b02325] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xu Zhang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Xuefeng Xu
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang 473061, China
| | - Gong Chen
- China Gateway Pharmaceutical
Development Company, Limited, Shanghai 201417, China
| | - Wei Yi
- VARI/SIMM
Center, Center for Structure and Function of Drug Targets, CAS-Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| |
Collapse
|
48
|
Wang Y, Jiang CM, Li HL, He FS, Luo X, Deng WP. Regioselective Iodine-Catalyzed Construction of Polysubstituted Pyrroles from Allenes and Enamines. J Org Chem 2016; 81:8653-8. [DOI: 10.1021/acs.joc.6b01737] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Wang
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chen-Min Jiang
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hong-Liang Li
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Fu-Sheng He
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai
Key Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| |
Collapse
|
49
|
Dhinakaran I, Padmini V, Bhuvanesh N. Chemodivergent, One-Pot, Multi-Component Synthesis of Pyrroles and Tetrahydropyridines under Solvent- and Catalyst-Free Conditions Using the Grinding Method. ACS COMBINATORIAL SCIENCE 2016; 18:236-42. [PMID: 26972275 DOI: 10.1021/acscombsci.5b00154] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A highly efficient, chemoselective synthesis of a library of polysubstituted pyrroles and tetrahydropyridines has been achieved through the one-pot, multicomponent reactions of ethyl (E)-3-(aryl/alkyl amino) acrylates, 2,2-dihydroxy-1-arylethan-1-ones, and malononitrile under solvent- and catalyst-free grinding conditions. The selective formation of pyrrole or tetrahydropyridines relied on substitution of the N-aryl of ethyl (E)-3-(4-arylamino) acrylates. These reactions presumably occurred via a domino Knoevenagel condensation and Michael addition followed by an intramolecular cyclization sequence of reactions in a single transformation.
Collapse
Affiliation(s)
- Isaivani Dhinakaran
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Vediappen Padmini
- Department
of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625 021, Tamil Nadu, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, College Station, Texas 77842, United States
| |
Collapse
|
50
|
Deng GB, Li HB, Yang XH, Song RJ, Hu M, Li JH. Dehydrogenative [2 + 2 + 1] Heteroannulation Using a Methyl Group as a One-Carbon Unit: Access to Pyrazolo[3,4-c]quinolines. Org Lett 2016; 18:2012-5. [PMID: 27123866 DOI: 10.1021/acs.orglett.6b00618] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A practical and straightforward access to pyrazolo[3,4-c]quinolines by molecular sieve mediated dehydrogenative [2 + 2 + 1] heteroannulation of N-(o-alkenylaryl)imines with aryldiazonium salts is described using a sp(3)-hybrid carbon atom as a one-carbon unit. The reaction enables the formation of three new chemical bonds, a C-C bond and two C-N bonds, in a single reaction and features simple operation and excellent functional group tolerance.
Collapse
Affiliation(s)
- Guo-Bo Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Hai-Bing Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Xu-Heng Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University , Changsha 410082, China.,State Key Laboratory of Applied Organic Chemistry Lanzhou University , Lanzhou 730000, China
| |
Collapse
|