1
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Shi L, Liu L, Lei X, Wang Y, Fang Y, Jiao P. Dearomative pyrrole (3+2) reaction with geminal bromonitroalkane: synthesis of 2,3-dihydropyrroles. Chem Commun (Camb) 2024; 60:6953-6956. [PMID: 38887875 DOI: 10.1039/d4cc01437e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Dearomative 1,3-dipolar cycloadditions of 1-Boc-pyrroles with in situ generated silver α-bromo alkylidenenitronates delivered a series of 3a,6a-dihydro-4-Boc-pyrrolo[2,3-d]isoxazole-2-oxides (17-91% yields) under very mild conditions. N-Deoxygenation of the cycloaddition product gave a dihydro-pyrrolo[2,3-d]isoxazole, elaborations of which produced various functionalized 2,3-dihydropyrroles and pyrrolidines, showcasing the potential utilities of our new strategy of pyrrole dearomatization.
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Affiliation(s)
- Lin Shi
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Lidong Liu
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Xingyu Lei
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Yihan Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Yeguang Fang
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
| | - Peng Jiao
- College of Chemistry, Beijing Normal University, Beijing 100875, China.
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2
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Cheng L, Zhao JL, Zhang XT, Jia QS, Dong N, Peng Y, Kleij AW, Liu XW. Chemo-, Regio- and Stereoselective Preparation of (Z)-2-Butene-1,4-Diol Monoesters via Pd-Catalyzed Decarboxylative Acyloxylation. Chemistry 2024:e202401377. [PMID: 38738789 DOI: 10.1002/chem.202401377] [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: 04/08/2024] [Revised: 05/10/2024] [Accepted: 05/12/2024] [Indexed: 05/14/2024]
Abstract
(Z)-alkenes are useful synthons but thermodynamically less stable than their (E)-isomers and typically more difficult to prepare. The synthesis of 1,4-hetero-bifunctionalized (Z)-alkenes is particularly challenging due to the inherent regio- and stereoselectivity issues. Herein we demonstrate a general, chemoselective and direct synthesis of (Z)-2-butene-1,4-diol monoesters. The protocol operates within a Pd-catalyzed decarboxylative acyloxylation regime involving vinyl ethylene carbonates (VECs) and various carboxylic acids as the reaction partners under mild and operationally attractive conditions. The newly developed process allows access to a structurally diverse pool of (Z)-2-butene-1,4-diol monoesters in good yields and with excellent regio- and stereoselectivity. Various synthetic transformations of the obtained (Z)-2-butene-1,4-diol monoesters demonstrate how these synthons are of great use to rapidly diversify the portfolio of these formal desymmetrized (Z)-alkenes.
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Affiliation(s)
- Long Cheng
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Jia-Li Zhao
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Xiao-Tian Zhang
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Qiao-Sen Jia
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Ni Dong
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Yu Peng
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST), Av. Països Catalans 16, 43007 -, Tarragona, Spain
- Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluis Companys 23, 08010 -, Barcelona, Spain
| | - Xiang-Wei Liu
- School of Chemistry, School of Life Science and Engineering, Southwest Jiaotong University. No. 111, North 1st Section, 2nd Ring Road, Chengdu, 610031, P. R. China
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3
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Huang J, Li T, Lu X, Ma D. Copper-Catalyzed α-Arylation of Nitroalkanes with (Hetero)aryl Bromides/Iodides. Angew Chem Int Ed Engl 2024; 63:e202315994. [PMID: 38151905 DOI: 10.1002/anie.202315994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/21/2023] [Accepted: 12/27/2023] [Indexed: 12/29/2023]
Abstract
α-Aryl substituted nitroalkanes are valuable synthetic building blocks that can be easily converted into α-aryl substituted aldehydes, ketones, carboxylic acids, as well as amines. Herein, an efficient Cu/oxalamide-catalyzed coupling between nitroalkanes and (hetero)aryl halides (Br, I) was developed to direct access highly diverse α-aryl substituted nitroalkanes. Compared with the current state of art, this protocol is more environmentally friendly and practical for synthetic chemists. This approach is characterized by a broad substrate scope on both nitroalkane part (primary nitroalkanes and nitromethane) and sp2 halide part ((hetero)aryl bromides/iodides and alkenyl bromides/iodides). The excellent functional group tolerance was observed, which would enable real world synthetic applications. More importantly, TON of current transformation reached to 3640, when some aryl iodides were used as coupling partners. This represents currently the highest catalyst turnover for transition-metal catalyzed α-arylation of nitroalkanes. Furthermore, the successful application in late-stage modification of complex molecules and synthesis of a known retinoid X receptor (RXR) antagonist exemplified its synthetic potential.
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Affiliation(s)
- Jianqiang Huang
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology (SUSTech), Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Taian Li
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology (SUSTech), Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Xiaobiao Lu
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology (SUSTech), Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
| | - Dawei Ma
- Shenzhen Key Laboratory of Cross-Coupling Reactions, Southern University of Science and Technology (SUSTech), Department of Chemistry, Southern University of Science and Technology (SUSTech), Shenzhen, 518055, China
- State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, China
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4
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Xu B, Wang Q, Fang C, Zhang ZM, Zhang J. Recent advances in Pd-catalyzed asymmetric cyclization reactions. Chem Soc Rev 2024; 53:883-971. [PMID: 38108127 DOI: 10.1039/d3cs00489a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Over the past few decades, there have been major developments in transition metal-catalyzed asymmetric cyclization reactions, enabling the convenient access to a wide spectrum of structurally diverse chiral carbo- and hetero-cycles, common skeletons found in fine chemicals, natural products, pharmaceuticals, agrochemicals, and materials. In particular, a plethora of enantioselective cyclization reactions have been promoted by chiral palladium catalysts owing to their outstanding features. This review aims to collect the latest advancements in enantioselective palladium-catalyzed cyclization reactions over the past eleven years, and it is organized into thirteen sections depending on the different types of transformations involved.
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Affiliation(s)
- Bing Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Zhuhai Fudan Innovation Institute, Zhuhai 519000, China
| | - Quanpu Wang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
| | - Chao Fang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
| | - Zhan-Ming Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Fudan Zhangjiang Institute, Shanghai 201203, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China.
- Fudan Zhangjiang Institute, Shanghai 201203, China
- School of Chemisty and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
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5
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Zhou L, Liu D, Huang H, Zhang K, Ning Y, Chen FE. Palladium-catalyzed decarboxylative allylation of vinyloxazolidin-2-ones with sodium sulfinates: stereoselective assembly of highly functionalized ( Z)-allylic amines. Chem Commun (Camb) 2023; 59:9892-9895. [PMID: 37493523 DOI: 10.1039/d3cc02237d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
Abstract
We report a general approach to highly functionalized (Z)-allylic amines by decarboxylative allylation of vinyloxazolidin-2-ones. This process engages sodium sulfinates as nucleophiles to form a new carbon-sulfur bond, utilizing a palladium catalyst generated from Pd(OAc)2 and diphosphine ligand dpppe. The scope of the protocol is illustrated by the synthesis of 30 representative allylic amines with high regio- and stereoselectivity. Mechanistic studies show that the Z-selectivity of the reaction stems from the formation of a palladacycle intermediate through Pd-N chelation. The synthetic utility of this method was further exemplified by the gram-scale synthesis and subsequent transformations to various compounds.
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Affiliation(s)
- Ledan Zhou
- College of Chemistry, Fuzhou University, Fuzhou 350102, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
| | - Ding Liu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
| | - Huashan Huang
- College of Chemistry, Fuzhou University, Fuzhou 350102, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
| | - Ke Zhang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
| | - Yingtang Ning
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
| | - Fen-Er Chen
- College of Chemistry, Fuzhou University, Fuzhou 350102, China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Fudan University, 200433 Shanghai, China.
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, 200433 Shanghai, China
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6
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McArthur G, Abel S, Volpin G, Barber DM. Strategies for the Enantioselective Synthesis of 2‐Isoxazolines and 2‐Isoxazolin‐5‐ones Bearing Fully Substituted Stereocenters**. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Gillian McArthur
- Research and Development, Weed Control Chemistry, Bayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
| | - Steven Abel
- Research and Development, Weed Control Chemistry, Bayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
| | - Giulio Volpin
- Research and Development, Small Molecules Technologies, Process Research, Bayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
| | - David M. Barber
- Research and Development, Weed Control Chemistry, Bayer AG, Crop Science Division Industriepark Höchst 65926 Frankfurt am Main Germany
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7
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Simlandy AK, Rodphon W, Alturaifi TM, Mai BK, Ni HQ, Gurak JA, Liu P, Engle KM. Catalytic Addition of Nitroalkanes to Unactivated Alkenes via Directed Carbopalladation. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amit Kumar Simlandy
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Warabhorn Rodphon
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Turki M. Alturaifi
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Binh Khanh Mai
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Hui-Qi Ni
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - John A. Gurak
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
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8
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Khan S, Shah BH, Zhao C, Zhang YJ. Pd-Catalyzed regio- and stereoselective allylic substitution of vinylethylene carbonates with 1,2,4-triazoles. Org Biomol Chem 2022; 20:6532-6536. [PMID: 35880932 DOI: 10.1039/d2ob01156e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
N 1-Substituted 1,2,4-triazoles are ubiquitous skeletons in medicinal agents, agrochemicals, and organic materials. Herein, an efficient and practical method for the synthesis of N1-allylated 1,2,4-triazoles via Pd-catalyzed allylic substitution of vinylethylene carbonates (VECs) with 1,2,4-triazoles has been developed. By using a catalyst generated in situ from Pd2(dba)3·CHCl3 and DPPE under mild conditions, the process allows rapid access to N1-allylated 1,2,4-triazoles bearing diverse functionalities in high yields with excellent N1-selectivities, linear-selectivities, and Z-stereoselectivities.
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Affiliation(s)
- Sardaraz Khan
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, and School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Babar Hussain Shah
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, and School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Can Zhao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, and School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Yong Jian Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Frontiers Science Center for Transformative Molecules, and School of Chemistry and Chemical Engineering Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
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9
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Zhao C, Khan S, Khan I, Shah BH, Zhang YJ. Pd‐Catalyzed Asymmetric Allylic Cycloaddition of Vinylethylene Carbonates with Nitroalkenes: A Route to Tetrahydrofurans bearing Vicinal Tetrasubstituted Stereocenters. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200313] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Can Zhao
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Sardaraz Khan
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Ijaz Khan
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Babar Hussain Shah
- Shanghai Jiao Tong University School of chemistry and Chemical Engineering CHINA
| | - Yong Jian Zhang
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 800 Dongchuan Road 200240 Shanghai CHINA
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10
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Zhao C, Li T, Khan I, Zhang YJ. Pd‐Catalyzed Chemoselective Bis‐Allylic Substitution of Allylic Dicarbonates with Arylated Nitromethanes: A Route to 1,2‐Oxazine N‐Oxides. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Can Zhao
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering CHINA
| | - Tao Li
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering CHINA
| | - Ijaz Khan
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering CHINA
| | - Yong Jian Zhang
- Shanghai Jiao Tong University School of Chemistry and Chemical Engineering 800 Dongchuan Road 200240 Shanghai CHINA
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11
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Zhang K, Ke M, Liu Z, Zuo S, Chen FE. One-Pot Synthesis of Cyclopentenols from Vinylethylene Carbonates via Palladium-Catalyzed Decarboxylative Allylation and Cascade Oxidation-Cyclization. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210451] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ke Zhang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University,Yanbian University, Yanji 133000, People’s Republic of China
| | - Miaolin Ke
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People’s Republic of China
| | - Zhigang Liu
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People’s Republic of China
| | - Sheng Zuo
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People’s Republic of China
| | - Fen-er Chen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, Yanbian University,Yanbian University, Yanji 133000, People’s Republic of China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People’s Republic of China
- Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People’s Republic of China
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12
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Wan Y, Zhu Y, Peng H, Deng G. Preparation of 4-(Nitromethyl)furan Derivatives and Their Application in the Syntheses of Bis(furan-2-yl)oximes. J Org Chem 2021; 87:281-293. [PMID: 34902975 DOI: 10.1021/acs.joc.1c02359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for the preparation of tetrasubstituted furans, which contains a nitromethyl group at the 4-position, has been developed. The applications of 4-(nitromethyl)furans on the synthesis of highly functionalized bis(furyl)oxime were explored for the first time.
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Affiliation(s)
- Yinbo Wan
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Yang Zhu
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Haiyun Peng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
| | - Guisheng Deng
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), Hunan Normal University, Changsha 410081, China.,Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha 410081, China
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13
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Fershtat LL, Teslenko FE. Five-Membered Hetarene N-Oxides: Recent Advances in Synthesis and Reactivity. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1529-7678] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AbstractFive-membered heterocyclic N-oxides attract special attention due to their significant potential applications in medicinal chemistry and advanced materials science. In this regard, novel methods for their synthesis and functionalization are in constant demand. In this short review, recent state-of-the-art achievements in the chemistry of isoxazoline N-oxides, 1,2,3-triazole 1-oxides and 1,2,5-oxadiazole 2-oxides are summarized. The main routes involving transition-metal-catalyzed and metal-free functionalization protocols along with mechanistic considerations are outlined. The transformations of these hetarene N-oxide rings as precursors to other nitrogen heterocyclic systems are also presented.1 Introduction2 Isoxazoline N-Oxides3 1,2,3-Triazole 1-Oxides4 1,2,5-Oxadiazole 2-Oxides5 Conclusion
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Affiliation(s)
- Leonid L. Fershtat
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
- National Research University Higher School of Economics
| | - Fedor E. Teslenko
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences
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14
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Fernandes RA, Gangani AJ, Panja A. Synthesis of 5-Vinyl-2-isoxazolines by Palladium-Catalyzed Intramolecular O-Allylation of Ketoximes. Org Lett 2021; 23:6227-6231. [PMID: 34324361 DOI: 10.1021/acs.orglett.1c01897] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for the synthesis of 5-vinyl-2-isoxazolines by Pd-catalyzed intramolecular O-allylation of ketoximes has been developed. The reaction involves Pd(0)-catalyzed π-allyl formation via leaving group ionization or Pd(II)-catalyzed allylic C-H activation followed by intramolecular nucleophilic oxime oxygen attack. This methodology has been elaborated to various value-added products by epoxidation, Wacker oxidation, cross-metathesis, hydroboration-oxidation, dihydroxylation, and catalytic hydrogenation.
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Affiliation(s)
- Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Ashvin J Gangani
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
| | - Arpita Panja
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, Maharashtra, India
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15
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Five-Membered Cyclic Carbonates: Versatility for Applications in Organic Synthesis, Pharmaceutical, and Materials Sciences. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11115024] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This review presents the recent advances involving several applications of five-membered cyclic carbonates and derivatives. With more than 150 references, it covers the period from 2012 to 2020, with special emphasis on the use of five-membered cyclic carbonates as building blocks for organic synthesis and material elaboration. We demonstrate the application of cyclic carbonates in several important chemical transformations, such as decarboxylation, hydrogenation, and transesterification reactions, among others. The presence of cyclic carbonates in molecules with high biological potential is also displayed, together with the importance of these compounds in the preparation of materials such as urethanes, polyurethanes, and flame retardants.
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16
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Pàmies O, Margalef J, Cañellas S, James J, Judge E, Guiry PJ, Moberg C, Bäckvall JE, Pfaltz A, Pericàs MA, Diéguez M. Recent Advances in Enantioselective Pd-Catalyzed Allylic Substitution: From Design to Applications. Chem Rev 2021; 121:4373-4505. [PMID: 33739109 PMCID: PMC8576828 DOI: 10.1021/acs.chemrev.0c00736] [Citation(s) in RCA: 201] [Impact Index Per Article: 67.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/30/2022]
Abstract
This Review compiles the evolution, mechanistic understanding, and more recent advances in enantioselective Pd-catalyzed allylic substitution and decarboxylative and oxidative allylic substitutions. For each reaction, the catalytic data, as well as examples of their application to the synthesis of more complex molecules, are collected. Sections in which we discuss key mechanistic aspects for high selectivity and a comparison with other metals (with advantages and disadvantages) are also included. For Pd-catalyzed asymmetric allylic substitution, the catalytic data are grouped according to the type of nucleophile employed. Because of the prominent position of the use of stabilized carbon nucleophiles and heteronucleophiles, many chiral ligands have been developed. To better compare the results, they are presented grouped by ligand types. Pd-catalyzed asymmetric decarboxylative reactions are mainly promoted by PHOX or Trost ligands, which justifies organizing this section in chronological order. For asymmetric oxidative allylic substitution the results are grouped according to the type of nucleophile used.
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Affiliation(s)
- Oscar Pàmies
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Jèssica Margalef
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
| | - Santiago Cañellas
- Discovery
Sciences, Janssen Research and Development, Janssen-Cilag, S.A. Jarama 75A, 45007, Toledo, Spain
| | - Jinju James
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Eric Judge
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre
for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Christina Moberg
- KTH
Royal Institute of Technology, Department of Chemistry, Organic Chemistry, SE 100 44 Stockholm, Sweden
| | - Jan-E. Bäckvall
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE 106 91 Stockholm, Sweden
| | - Andreas Pfaltz
- Department
of Chemistry, University of Basel. St. Johanns-Ring 19, 4056 Basel, Switzerland
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Inorgànica i Orgànica, Universitat de Barcelona. 08028 Barcelona, Spain
| | - Montserrat Diéguez
- Universitat
Rovira i Virgili, Departament de
Química Física i Inorgànica, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain
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17
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Li H, Khan I, Li M, Wang Z, Wu X, Ding K, Zhang YJ. Pd-Catalyzed Regio- and Enantioselective Aminoarylation of Allenols with Aryl Iodides and 2-Pyridones. Org Lett 2021; 23:3567-3572. [DOI: 10.1021/acs.orglett.1c00959] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hongfang Li
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Department of Chemistry, College of Science, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Ijaz Khan
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Meiqi Li
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Zheng Wang
- State Key Laboratory of Organometallic Chemistry, Center of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Xue Wu
- Department of Chemistry, College of Science, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
| | - Kuiling Ding
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- State Key Laboratory of Organometallic Chemistry, Center of Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, P. R. China
| | - Yong Jian Zhang
- Frontiers Science Center for Transformative Molecules, Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, and School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
- Department of Chemistry, College of Science, Yanbian University, 977 Gongyuan Road, Yanji, Jilin 133002, P. R. China
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18
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Guo K, Kleij AW. Copper-Mediated Dichotomic Borylation of Alkyne Carbonates: Stereoselective Access to (E)-1,2-Diborylated 1,3-Dienes versus Traceless Monoborylation Affording α-Hydroxyallenes. Angew Chem Int Ed Engl 2021; 60:4901-4906. [PMID: 33230901 DOI: 10.1002/anie.202014310] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Indexed: 11/09/2022]
Abstract
A mild copper-mediated protocol has been developed for borylation of alkynyl cyclic carbonates. Depending on the nature of the borylating reaction partner, either stereoselective diborylation of the propargylic surrogate takes place, providing convenient access to (E)-1,2-borylated 1,3-dienes, or traceless monoborylation occurs, which leads to α-hydroxyallenes as the principal product. The dichotomy in this borylation protocol has been scrutinized by several control experiments, illustrating that a relatively small change in the diboron(4) reagent allows for competitive alcohol-assisted protodemetalation to forge an α-hydroxyallene product under ambient conditions.
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Affiliation(s)
- Kun Guo
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Arjan W Kleij
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Catalan Institute of Research and Advanced Studies (ICREA), Pg. Lluís Companys 23, 08010, Barcelona, Spain
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19
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Guo K, Kleij AW. Copper‐Mediated Dichotomic Borylation of Alkyne Carbonates: Stereoselective Access to (
E
)‐1,2‐Diborylated 1,3‐Dienes versus Traceless Monoborylation Affording α‐Hydroxyallenes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Kun Guo
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
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20
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Zhao C, Shah BH, Li H, Wu X, Zhang YJ. Palladium‐Catalyzed Allylic Cycloaddition of Vinylethylene Carbonates with 3‐Nitrochromone. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000714] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Can Zhao
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
| | - Babar Hussain Shah
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
| | - Hongfang Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
- Department of Chemistry College of Science Yanbian University 977 Gongyuan Road, Yanji 133002 Jilin P. R. China
| | - Xue Wu
- Department of Chemistry College of Science Yanbian University 977 Gongyuan Road, Yanji 133002 Jilin P. R. China
| | - Yong Jian Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs Frontiers Science Center for Transformative Molecules School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 800 Dongchuan Road 200240 Shanghai P. R. China
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21
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de la Cruz-Sánchez P, Pàmies O. Metal-π-allyl mediated asymmetric cycloaddition reactions. ADVANCES IN CATALYSIS 2021. [DOI: 10.1016/bs.acat.2021.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Zhao C, Khan I, Zhang YJ. Enantioselective total synthesis of furofuran lignans via Pd-catalyzed asymmetric allylic cycloadditon of vinylethylene carbonates with 2-nitroacrylates. Chem Commun (Camb) 2020; 56:12431-12434. [PMID: 32939529 DOI: 10.1039/d0cc05640e] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, a practical and efficient approach to tetrahydrofurans with three-stereocenters has been developed through Pd-catalyzed asymmetric allylic cycloaddition of vinylethylene carbonates (VECs) with 2-nitroacrylates under mild conditions. By using this asymmetric catalytic reaction as a key step, several furofuran lignans with stereodivergency have been effectively synthesized through 5- or 6-step sequences from readily available starting materials.
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Affiliation(s)
- Can Zhao
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Ijaz Khan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
| | - Yong Jian Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, and Shanghai Key Laboratory of Electrical Insulation and Thermal Aging, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
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23
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Kim RS, Dinh-Nguyen LV, Shimkin KW, Watson DA. Copper-Catalyzed Propargylation of Nitroalkanes. Org Lett 2020; 22:8106-8110. [PMID: 33006901 DOI: 10.1021/acs.orglett.0c03061] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Using a commercially available, inexpensive, and abundant copper catalyst system, an efficient α-functionalization of nitroalkanes with propargyl bromides is now established. This mild and robust method is highly functional group tolerant and provides straightforward access to complex secondary and tertiary homopropargylic nitroalkanes. Moreover, the utility of these α-propargylated nitroalkanes is demonstrated through downstream functionalization to biologically relevant, five-membered N-heterocycles such as pyrroles and 2-pyrrolines.
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Affiliation(s)
- Raphael S Kim
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Linh V Dinh-Nguyen
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Kirk W Shimkin
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Donald A Watson
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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24
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Luo X, Liu S, Lan Y. Mechanism and Regioselectivity of 1,3‐Dipolar Cycloaddition of Nitrile Oxides to 3‐Methylene Oxindole: A Density Functional Theory Study. ChemistrySelect 2020. [DOI: 10.1002/slct.202002672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaoling Luo
- Chongqing Key Laboratory of Inorganic Functional Materials, College of ChemistryChongqing Normal University Chongqing 401331 China
| | - Song Liu
- Chongqing Key Laboratory of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringChongqing University Chongqing 400030 China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational ChemistrySchool of Chemistry and Chemical EngineeringChongqing University Chongqing 400030 China
- College of Chemistryand Institute of Green CatalysisZhengzhou University Zhengzhou Henan 450001 China
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25
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Xiong W, Zhang S, Li H, Zhang Z, Xu T. Pd-Catalyzed Decarboxylative Cycloaddition of Vinylethylene Carbonates with Isothiocyanates. J Org Chem 2020; 85:8773-8779. [DOI: 10.1021/acs.joc.0c00243] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Wei Xiong
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi’an 710127, P. R. China
| | - Shengjun Zhang
- State Energy Key Lab of Clean Coal Grading Conversion Modern Chemical Technology Department, Shaanxi Key Laboratory of Low Rank Coal Pyrolysis, Shaanxi Coal and Chemical Technology Institute Co., Ltd., 2 Jinye Road, Xi’an 710065, P. R. China
| | - Huijun Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi’an 710127, P. R. China
| | - Zhifeng Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi’an 710127, P. R. China
| | - Tongyu Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, 1 Xuefu Road, Xi’an 710127, P. R. China
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26
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Ke M, Liu Z, Huang G, Wang J, Tao Y, Chen F. Palladium-Catalyzed Regio- and Stereoselective Cross-Coupling of Vinylethylene Carbonates with Ketimine Esters to Generate ( Z)-Tri- and Tetra-substituted Allylic Amino Acid Derivatives. Org Lett 2020; 22:4135-4140. [PMID: 32383610 DOI: 10.1021/acs.orglett.0c01211] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Herein we report the palladium-catalyzed regio- and stereoselective cross-coupling of vinylethylene carbonates with ketimine esters to construct allylic amino acid scaffolds. This operationally simple protocol furnished (Z)-tri- and tetra-substituted allylic amino acid derivatives in good to excellent yields with distinguished geometric control under mild reaction conditions and proved to be sufficient in large-scale synthesis while retaining excellent reactivity and stereoselectivity, highlighting the practical value of this transformation.
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Affiliation(s)
- Miaolin Ke
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People's Republic of China
| | - Zhigang Liu
- School of Environment and Chemical Engineering, Xi'an Polytechnic University, 19 Jinhua South Road, Xi'an, Shanxi 710048, People's Republic of China
| | - Guanxin Huang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People's Republic of China
| | - Jiaqi Wang
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People's Republic of China
| | - Yuan Tao
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People's Republic of China
| | - Fener Chen
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, People's Republic of China.,Shanghai Engineering Center of Industrial Asymmetric Catalysis for Chiral Drugs, Shanghai 200433, People's Republic of China
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27
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Liu H, Yan Y, Zhang J, Liu M, Cheng S, Wang Z, Zhang X. Enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines. Chem Commun (Camb) 2020; 56:13591-13594. [DOI: 10.1039/d0cc05807f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Enantioselective dearomative [3+2] annulation of 5-amino-isoxazoles with quinone monoimines provided various (bridged) isoxazolines fused dihydrobenzofurans with moderate to good yields in moderate to good enantioselectivities.
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Affiliation(s)
- Hui Liu
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - Yingkun Yan
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - Jiayan Zhang
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - Min Liu
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - Shaobing Cheng
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - Zhouyu Wang
- Department of Chemistry
- Xihua University
- China
| | - Xiaomei Zhang
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
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