1
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Zhang R, Ma R, Chen R, Wang L, Ma Y. Regioselective C 3Alkylation of Indoles for the Synthesis of Bis(indolyl)methanes and 3-Styryl Indoles. J Org Chem 2024; 89:1846-1857. [PMID: 38214898 DOI: 10.1021/acs.joc.3c02551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Herein, we describe an efficient transition-metal-free regioselective C3alkylation of indoles for the synthesis of bis(indolyl)methanes and 3-styryl indoles. Nitrobenzene is employed as the oxidant to oxidize the alcohols in the presence of a strong base and the reaction avoids the use of transition metals such as Ru and Mn. The protocol provides a favorable route to access biologically active compounds such as arundine, vibrindole A, and turbomycin B.
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Affiliation(s)
- Ruiqin Zhang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
- School of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou 310053, P. R. China
| | - Renchao Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
| | - Rener Chen
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
| | - Lei Wang
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou 311121, P. R. China
| | - Yongmin Ma
- Institute of Advanced Studies and School of Pharmaceutical Sciences, Taizhou University, Jiaojiang 318000, P. R. China
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2
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Kim SB, Maiti S, Park ES, Kim GY, Choun Y, Ahn SK, Kim JK, Kim J. One-Pot Synthesis of 1,3,4-Oxadiazines from Acylhydrazides and Allenoates. Molecules 2023; 28:molecules28093815. [PMID: 37175225 PMCID: PMC10180079 DOI: 10.3390/molecules28093815] [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: 03/30/2023] [Revised: 04/19/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The framework of 1,3,4-oxadiazine is crucial for numerous bioactive molecules, but only a limited number of synthetic methods have been reported for its production. In 2015, Wang's group developed a 4-(dimethylamino)pyridine (DMAP)-catalyzed [2 + 4] cycloaddition of allenoates with N-acyldiazenes, which provided an atom-efficient route for 1,3,4-oxadiazines. However, the practicality of this method was limited by the instability of N-acyldiazenes as starting materials. Building upon our ongoing research about the aerobic oxidation of hydrazides and their synthetic applications, we hypothesized that aerobic oxidative cycloadditions using acylhydrazides instead of N-acyldiazenes may provide a more practical synthetic route for 1,3,4-oxadiazines. In this manuscript, we describe a one-pot synthetic protocol for 1,3,4-oxadiazines from acylhydrazides and allenoates. The developed one-pot protocol consists of aerobic oxidations of acylhydrazides into N-acyldiazenes using NaNO2 and HNO3, followed by the DMAP-catalyzed cycloaddition of allenoate with the generated N-acyldiazenes. A variety of 1,3,4-oxadiazines were produced in good to high yields. In addition, the practicality of the developed method was demonstrated by a gram-scale synthesis of 1,3,4-oxadiazine.
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Affiliation(s)
- Su Been Kim
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Santanu Maiti
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Eun Sun Park
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Ga Young Kim
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Yunji Choun
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Soon Kil Ahn
- Institute for New Drug Development, Division of Life Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Jae Kwang Kim
- Division of Life Sciences, Incheon National University, Incheon 22012, Republic of Korea
| | - Jinho Kim
- Department of Chemistry and Research Institute of Basic Sciences, Incheon National University, Incheon 22012, Republic of Korea
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3
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Gao HJ, Miao YH, Jia SK, Li N, Xu LP, Wang W, Wang MC, Mei GJ. Azo group-enabled metal- and oxidant-free alkenyl C–H thiolation: Access to stereodefined tetrasubstituted acyclic olefins. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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4
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Ubale AS, Londhe GS, Shaikh MA, Gnanaprakasam B. Transition-Metal-Free Alkylative Aromatization of Tetralone Using Alcohol/Amino Alcohol towards the Synthesis of Bioactive Naphthol and Benzo[ e/ g]indole Derivatives. J Org Chem 2022; 87:8104-8117. [PMID: 35612287 DOI: 10.1021/acs.joc.2c00779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we report alkylative aromatization of tetralone for the synthesis of bioactive naphthols and benzo[e/g]indole derivatives using alcohols in the presence of NaOH via an aerobic oxidative cross-coupling protocol. This is a general and transition-metal-free method, which uses an inexpensive base, avoids inert conditions, and furnishes water and hydrogen peroxide as the byproducts. Moreover, this method demonstrated with wide substrate scope and obtained exclusive regioselectivity.
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Affiliation(s)
- Akash S Ubale
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Gokul S Londhe
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Moseen A Shaikh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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5
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Ke C, Cao Q, Luo Y, Liu X, Feng X. Catalytic asymmetric amination of azlactones with azobenzenes. Chem Commun (Camb) 2022; 58:5881-5884. [PMID: 35470829 DOI: 10.1039/d2cc01656g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We reported an efficient asymmetric amination of azlactones with N-aryl-N-aroyldiazenes through a chiral N,N'-dioxide-based Lewis acid catalyst. The multicoordination ability of Nd(III) enabled it to simultaneously activate and to locate the two reactants for N-selective addition. Hydrazine-bearing azlactone derivatives were obtained in moderate to good yields with high enantioselectivity.
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Affiliation(s)
- Chaoqi Ke
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Qiuhui Cao
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Yao Luo
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
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6
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Organocatalytic cycloaddition of alkynylindoles with azonaphthalenes for atroposelective construction of indole-based biaryls. Nat Commun 2022; 13:632. [PMID: 35110529 PMCID: PMC8810779 DOI: 10.1038/s41467-022-28211-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 12/14/2021] [Indexed: 12/29/2022] Open
Abstract
The axially chiral indole-aryl motifs are present in natural products and biologically active compounds as well as in chiral ligands. Atroposelective indole formation is an efficient method to construct indole-based biaryls. We report herein the result of a chiral phosphoric acid catalyzed asymmetric cycloaddition of 3-alkynylindoles with azonaphthalenes. A class of indole-based biaryls were prepared efficiently with excellent yields and enantioselectivities (up to 98% yield, 99% ee). Control experiment and DFT calculations illustrate a possible mechanism in which the reaction proceeds via a dearomatization of indole to generate an allene-iminium intermediate, followed by an intramolecular aza-Michael addition. This approach provides a convergent synthetic strategy for enantioselective construction of axially chiral heterobiaryl backbones. There is great interest in methods for catalytic enantioselective construction of axially chiral compounds found in natural products. Here, the authors develop a cycloaddition strategy for atroposelective construction of indole-based biaryls via chiral phosphoric acid-catalysed cycloaddition.
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7
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Xu WL, Zhao WM, Zhang RX, Chen J, Zhou L. Organocatalytic cycloaddition-elimination cascade for atroposelective construction of heterobiaryls. Chem Sci 2021; 12:14920-14926. [PMID: 34820108 PMCID: PMC8597853 DOI: 10.1039/d1sc05161j] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/28/2021] [Indexed: 12/19/2022] Open
Abstract
The first chiral phosphoric acid (CPA) catalyzed cycloaddition–elimination cascade reaction of 2-naphthol- and phenol-derived enecarbamates with azonaphthalenes has been established, providing a highly atroposelective route to an array of axially chiral aryl-C3-benzoindoles in excellent yields with excellent enantioselectivities. The success of this strategy derives from the stepwise process involving CPA-catalyzed asymmetric formal [3 + 2] cycloaddition and subsequent central-to-axial chirality conversion by elimination of a carbamate. In addition, the practicality of this reaction had been verified by varieties of transformations towards functionalized atropisomers. An organocatalytic asymmetric cycloaddition–elimination cascade reaction of aryl enecarbamates with azonaphthalenes has been developed to access axially chiral heterobiaryls in excellent yields and enantioselectivities.![]()
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Affiliation(s)
- Wen-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Wei-Ming Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Ru-Xia Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University Xi'an 710102 P. R. China
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8
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Liu SJ, Tu MS, Liu KY, Chen JY, Ni SF, Zhang YC, Shi F. Organocatalytic Asymmetric [2 + 4] Cycloadditions of 3-Vinylindoles with ortho-Quinone Methides. Molecules 2021; 26:6751. [PMID: 34771158 PMCID: PMC8587149 DOI: 10.3390/molecules26216751] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 11/16/2022] Open
Abstract
Catalytic asymmetric [2 + 4] cycloadditions of 3-vinylindoles with ortho-quinone methides and their precursors were carried out in the presence of chiral phosphoric acid to afford a series of indole-containing chroman derivatives with structural diversity in overall high yields (up to 98%), good diastereoselectivities (up to 93:7 dr) and moderate to excellent enantioselectivities (up to 98% ee). This approach not only enriches the chemistry of catalytic asymmetric cycloadditions involving 3-vinylindoles but is also useful for synthesizing chiral chroman derivatives.
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Affiliation(s)
- Si-Jia Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Man-Su Tu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Kai-Yue Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Jia-Yi Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, Shantou 515063, China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, China
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9
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Zhao F, Qiao J, Lu Y, Zhang X, Dai L, Liu S, Ni H, Jia X, Wu X, Lu S. Redox-Neutral Rhodium(III)-Catalyzed Chemospecific and Regiospecific [4+1] Annulation between Indoles and Alkenes for the Synthesis of Functionalized Imidazo[1,5- a]indoles. J Org Chem 2021; 86:10591-10607. [PMID: 34297561 DOI: 10.1021/acs.joc.1c01256] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Exploiting internal alkenes embedded with an oxidizing function/leaving group as a rare and unconventional one-carbon unit, a redox-neutral rhodium(III)-catalyzed chemo- and regiospecific [4+1] annulation between indoles and alkenes for the synthesis of functionalized imidazo[1,5-a]indoles has been achieved. Internal alkenes employed here can fulfill an unusual [4+1] annulation rather than normal [4+2] annulation/C-H alkenylation. This method is characterized by excellent chemo- and regioselectivity, broad substrate scope, good functional group tolerance, good to high yields, and redox-neutral conditions.
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Affiliation(s)
- Fei Zhao
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Jin Qiao
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Yangbin Lu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiaoning Zhang
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Long Dai
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Siyu Liu
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Hangcheng Ni
- Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
| | - Xiuwen Jia
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China
| | - Xiaowei Wu
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, P. R. China.,Zhongshan Institute for Drug Discovery, the Institutes of Drug Discovery and Development, Chinese Academy of Sciences, Zhongshan 528400, P. R. China
| | - Shiyao Lu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610106, P. R. China.,Jinhua Branch, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Jinhua 321007, P. R. China
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10
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Zhang J, Liu M, Huang M, Li W, Zhang X. Enantioselective Dearomative [3+2] Annulation of 3‐Hydroxymaleimides with Azonaphthalenes. ChemistrySelect 2021. [DOI: 10.1002/slct.202100722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Jiayan Zhang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu China
- University of Chinese Academy of Sciences Beijing China
| | - Min Liu
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu China
- University of Chinese Academy of Sciences Beijing China
| | - Min Huang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu China
- University of Chinese Academy of Sciences Beijing China
| | - Wenzhe Li
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu China
- University of Chinese Academy of Sciences Beijing China
| | - Xiaomei Zhang
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province Chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu China
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11
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Chen C, Cui S. BF3-promoted annulation of azonaphthalenes and ynamides for synthesis of benzo[e]indoles. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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12
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Tu MS, Chen KW, Wu P, Zhang YC, Liu XQ, Shi F. Advances in organocatalytic asymmetric reactions of vinylindoles: powerful access to enantioenriched indole derivatives. Org Chem Front 2021. [DOI: 10.1039/d0qo01643h] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review summarizes advances in vinylindole-based organocatalytic asymmetric reactions since 2008 and includes the applications of some methodologies in the total synthesis of natural products, points out remaining challenges in this research area.
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Affiliation(s)
- Man-Su Tu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Ke-Wei Chen
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Ping Wu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Xiao-Qin Liu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
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13
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Liu S, Zang Y, Huang H, Sun J. In(OTf)3-Catalyzed Synthesis of 2,3-Dihydro-1H-benzo[e]indoles and 2,3-Dihydrobenzofurans via [3 + 2] Annulation. Org Lett 2020; 22:8219-8223. [DOI: 10.1021/acs.orglett.0c02729] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shuxuan Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Yu Zang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water
Bay, Kowloon, Hong Kong, SAR, China
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14
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Lin X, Fang F, Lin W, Liu Z, Chang X, Li P, Li W. Organocatalytic Enantioselective α‐Amination by Conjugate Addition of 5
H
‐Thiazol‐4‐ones to Arylazocarboxylates: Access to Chiral
N
,
S
‐acetals. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiao Lin
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Fang Fang
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
| | - Wei Lin
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Zhantao Liu
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Xiaoyong Chang
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
| | - Pengfei Li
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
- Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
| | - Wenjun Li
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
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15
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Catalytic Asymmetric Formal [3+2] Cycloaddition of Azoalkenes with 3-Vinylindoles: Synthesis of 2,3-Dihydropyrroles. iScience 2020; 23:100873. [PMID: 32062452 PMCID: PMC7021545 DOI: 10.1016/j.isci.2020.100873] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 01/13/2020] [Accepted: 01/27/2020] [Indexed: 12/17/2022] Open
Abstract
Chiral phosphoric acid-catalyzed highly enantioselective formal [3 + 2] cycloaddition reaction of azoalkenes with 3-vinylindoles has been established. Under mild conditions, the projected cycloaddition proceeded smoothly, affording a variety of 2,3-dihydropyrroles in high yields and excellent enantioselectivities, and also in a diastereospecific manner. As opposed to the common 4-atom synthons in the previous literature reports, azoalkenes served as 3-atom synthons. Besides, the observed selectivity was supported by primary theoretical calculation. The unique chemistry of azoalkenes disclosed herein will empower asymmetric synthesis of nitrogen-containing ring structural motifs in a broader context. Chiral phosphoric acid catalyzed formal [3 + 2] cycloaddition reaction 2,3-Dihydropyrroles were enantioselectively synthesized Azoalkenes served as 3-atom synthons
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16
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Zhang J, Liu M, Huang M, Liu H, Yan Y, Wang Z, Zhang X. Enantioselective dearomative [3 + 2] annulation of 3-hydroxy chromanones with azonaphthalenes. Org Chem Front 2020. [DOI: 10.1039/d0qo00772b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Enantioselective dearomative [3 + 2] annulation of 3-hydroxy chromanones with azonaphthalenes provided a large variety of chromanone fused indolines in moderate to good yields with generally good enantioselectivities.
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Affiliation(s)
- 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
| | - Min Huang
- Department of Chemistry
- Xihua University
- China
- Asymmetric Synthesis and Chiraltechnology Key Laboratory of Sichuan Province
- Chengdu Institute of Organic Chemistry
| | - 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
| | - 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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17
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Wu SF, Tu MS, Hang QQ, Zhang S, Ding H, Zhang YC, Shi F. Construction of chiral chroman scaffolds via catalytic asymmetric (4 + 2) cyclizations of para-quinone methide derivatives with 3-vinylindoles. Org Biomol Chem 2020; 18:5388-5399. [DOI: 10.1039/d0ob01049a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The title reaction has been established in the presence of chiral phosphoric acid, affording chiral chroman derivatives bearing an indole moiety in high yields and with moderate to good stereoselectivities.
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Affiliation(s)
- Shu-Fang Wu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Man-Su Tu
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Qing-Qing Hang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Shu Zhang
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Haixia Ding
- Department of Geriatrics
- the First Affiliated Hospital of Nanjing Medical University
- Nanjing
- 210029
- China
| | - Yu-Chen Zhang
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
| | - Feng Shi
- School of Chemistry and Materials Science
- the Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province
- Jiangsu Normal University
- Xuzhou
- China
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18
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Lu K, Feng X, Yan CX, Yang FL, Yang X, Zhou PP, Yang Z. Chiral phosphoric acid catalyzed asymmetric arylation of indolesvianucleophilic aromatic substitution: mechanisms and origin of enantioselectivity. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00008f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Asymmetric arylation of indolesvianucleophilic aromatic substitution can be effectively achieved using chiral phosphoric acid as catalyst, where the mechanisms and origin of enantioselectivity were explored theoretically.
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Affiliation(s)
- Ka Lu
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Xiao Feng
- Key Laboratory of Biotechnology of Antibiotics
- Ministry of Health
- Institute of Medicinal Biotechnology
- Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC)
- Beijing 100050
| | - Chao-Xian Yan
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Fang-Ling Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Xing Yang
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Pan-Pan Zhou
- State Key Laboratory of Applied Organic Chemistry
- Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou
| | - Zhaoyong Yang
- Key Laboratory of Biotechnology of Antibiotics
- Ministry of Health
- Institute of Medicinal Biotechnology
- Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC)
- Beijing 100050
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19
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Yin X, Xu A, Hu J, Bao M, Hu W, Qian Y. A Rh( ii)/phosphoric acid co-catalyzed three-component reaction of diazo-ketones with alcohols and azonaphthalenes: access to indole derivatives via a formal [3 + 2]-cycloaddition. Org Biomol Chem 2020; 18:9805-9809. [DOI: 10.1039/d0ob02189j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Rh(ii)/Phosphoric Acid co-catalyzed muti-component annulation was well established as a new efficient route to construct 1-amino-indole derivatives via dearomatization/rearomatization/cyclization process with in situ formed oxonium ylide.
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Affiliation(s)
- Xinru Yin
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Aimin Xu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Jidi Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Ming Bao
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Wenhao Hu
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Yu Qian
- Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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20
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Zhang M, Chen M, Zhang Z. Visible Light‐Initiated Catalyst‐Free One‐Pot, Multicomponent Construction of 5‐Substituted Indole Chromeno[2,3‐
b
]pyridines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900994] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mo Zhang
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials ScienceHebei Normal University Shijiazhuang 050024 People's Republic of China
| | - Meng‐Nan Chen
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials ScienceHebei Normal University Shijiazhuang 050024 People's Republic of China
| | - Zhan‐Hui Zhang
- National Demonstration Center for Experimental Chemistry Education, Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Materials ScienceHebei Normal University Shijiazhuang 050024 People's Republic of China
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21
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Pan D, Mou C, Zan N, Lv Y, Song BA, Chi YR, Jin Z. NaOH-Promoted Chemoselective Cascade Cyclization of Cyclopropyl Esters with Unsaturated Imines: Access to Bioactive Cyclopenta[c]pyridine Derivatives. Org Lett 2019; 21:6624-6627. [PMID: 31411487 DOI: 10.1021/acs.orglett.9b02088] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A chemoselective cascade cycloaddition reaction is developed for green and efficient access to cyclopenta[c]pyridine derivatives. Simple and inexpensive NaOH is used as the sole catalyst for this process. The δ-carbon of cyclopropyl ester is activated as a nucleophilic carbon to initiate highly chemoselective cascade reactions. Cyclopenta[c]pyridines bearing various substituents are afforded in excellent yields. Preliminary studies on the bioactivities of the afforded products show promising antibacterial activities for potential applications in plant protections.
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Affiliation(s)
- Dingwu Pan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Chengli Mou
- Guizhou University of Traditional Chinese Medicine, Huaxi District, Guiyang 550025, China
| | - Ningning Zan
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Ya Lv
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Bao-An Song
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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22
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Zhao H, Yuan H, Zhang Y, Li R, Li W. Enamine Catalytic Annulation of Azonaphthalenes: An Access to Indole Derivatives. Org Lett 2019; 21:6557-6561. [DOI: 10.1021/acs.orglett.9b02507] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hanhui Zhao
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Huijun Yuan
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Yanru Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Rongshi Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
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23
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Wu Z, Wang J. A tandem dearomatization/rearomatization strategy: enantioselective N-heterocyclic carbene-catalyzed α-arylation. Chem Sci 2019; 10:2501-2506. [PMID: 30881680 PMCID: PMC6385844 DOI: 10.1039/c8sc04601h] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 12/21/2018] [Indexed: 12/14/2022] Open
Abstract
In this study, the first example of carbene-catalyzed tandem dearomatization/rearomatization reaction of azonaphthalenes with α-chloroaldehydes is described.
In this study, the first example of the carbene-catalyzed tandem dearomatization/rearomatization reaction of azonaphthalenes with α-chloroaldehydes is described. This protocol enables the efficient assembly of chiral dihydrocinnolinone derivatives in good yields with excellent enantioselectivities (up to 99% ee). Moreover, this strategy enables not only the highly enantioselective NHC-catalyzed nucleophilic aromatic substitution, but also a formal Csp2–Csp3 bond formation.
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Affiliation(s)
- Zijun Wu
- School of Pharmaceutical Sciences , Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology , Ministry of Education , Tsinghua University , Beijing , 100084 , China .
| | - Jian Wang
- School of Pharmaceutical Sciences , Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology , Ministry of Education , Tsinghua University , Beijing , 100084 , China .
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24
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Yang X, Zhou YH, Yang H, Wang SS, Ouyang Q, Luo QL, Guo QX. Asymmetric Diels–Alder Reaction of 3-Vinylindoles and Nitroolefins Promoted by Multiple Hydrogen Bonds. Org Lett 2019; 21:1161-1164. [DOI: 10.1021/acs.orglett.9b00104] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xi Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu-Hao Zhou
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Han Yang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shan-Shan Wang
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qin Ouyang
- College of Pharmacy, Third Military Medical University, Chongqing 400038, China
| | - Qun-Li Luo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qi-Xiang Guo
- Key Laboratory of Applied Chemistry of Chongqing Municipality and Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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25
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Zhao Q, Ren L, Hou J, Yu W, Chang J. Annulation Reactions of In-Situ-Generated N-(Het)aroyldiazenes with Isothiocyanates Leading to 2-Imino-1,3,4-oxadiazolines. Org Lett 2019; 21:210-213. [PMID: 30547596 DOI: 10.1021/acs.orglett.8b03663] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel annulation reaction of N-(het)aroyldiazenes and isothiocyanates has been established. This transformation involves a sequential cyclization and desulfurization/intramolecular rearrangement to produce 2-imino-1,3,4-oxadiazolines. The less-stable N-(het)aroyldiazenes can be conveniently generated in situ by I2-mediated oxidation of hydrazides, which allows a one-pot synthesis of the products directly from readily accessible hydrazide and isothiocyanate substrates. This operationally simple synthetic process requires no use of malodorous isocyanides and can be conveniently conducted on a gram scale.
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Affiliation(s)
- Qiongli Zhao
- College of Chemistry and Molecular Engineering; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province; School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan Province 450001 , China
| | - Linning Ren
- College of Chemistry and Molecular Engineering; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province; School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan Province 450001 , China
| | - Jiao Hou
- College of Chemistry and Molecular Engineering; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province; School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan Province 450001 , China
| | - Wenquan Yu
- College of Chemistry and Molecular Engineering; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province; School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan Province 450001 , China
| | - Junbiao Chang
- College of Chemistry and Molecular Engineering; Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province; School of Pharmaceutical Sciences , Zhengzhou University , Zhengzhou , Henan Province 450001 , China
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26
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Yuan H, Li Y, Zhao H, Yang Z, Li X, Li W. Asymmetric synthesis of atropisomeric pyrazole via an enantioselective reaction of azonaphthalene with pyrazolone. Chem Commun (Camb) 2019; 55:12715-12718. [DOI: 10.1039/c9cc06360a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The first catalytic asymmetric reaction of azonaphthalene with pyrazolone has been established. A wide range of axially chiral pyrazole derivatives have been achieved in good yields (68–99%) with excellent enantioselectivities (83–98% ee) by utilizing chiral phosphoric acid as a catalyst.
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Affiliation(s)
- Huijun Yuan
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
| | - Yao Li
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Hanhui Zhao
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
| | - Zhihong Yang
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry
- College of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Wenjun Li
- Department of Medicinal Chemistry
- School of Pharmacy
- Qingdao University
- Qingdao 266021
- China
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27
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Chen S, Wang GL, Xu SW, Tian MY, Zhang M, Liu XL, Yuan WC. Regio- and stereoselective [3 + 2] cycloaddition reaction: access to isoxazole-dispirobisoxindoles featuring three contiguous stereocenters. Org Biomol Chem 2019; 17:6551-6556. [DOI: 10.1039/c9ob01203f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A novel methodology toward the diversity-oriented asymmetric construction of densely functionalized isoxazole-dispirobisoxindoles was developed.
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Affiliation(s)
- Shuang Chen
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Guan-Lian Wang
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Sheng-Wen Xu
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Min-Yi Tian
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Min Zhang
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Xiong-Li Liu
- Guizhou Medicine Edible Plant Resources Application Development Engineering Laboratory
- Guizhou University
- Guiyang
- China
| | - Wei-Cheng Yuan
- Key Laboratory for Asymmetric Synthesis & Chirotechnology of Sichuan Province
- Chengdu Institute of Organic Chemistry
- Chinese Academy of Sciences
- Chengdu 610041
- China
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