1
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Karpe SA, Mondal D. Synthesis of 3‐Hydroxy‐2‐oxindole and 2,5‐Diketopiperazine Cores as Privileged Scaffolds of Indole Alkaloids. ChemistrySelect 2022. [DOI: 10.1002/slct.202202516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sameer A. Karpe
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat India
| | - Dhananjoy Mondal
- School of Chemical Sciences Central University of Gujarat 382030 Gandhinagar Gujarat India
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2
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Hazarika H, Chutia K, Das B, Gogoi P. One-pot synthesis of 3-substituted-3-hydroxyindolin-2-ones: three component coupling of N-protected isatin, aryne precursor and 1,3-cyclodione under metal-free conditions. NEW J CHEM 2022. [DOI: 10.1039/d1nj04295e] [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
A transition-metal free synthetic strategy for the direct synthesis of 3-substituted-3-hydroxy-indolin-2-ones via three component coupling of N-protected isatin, aryne precursor, and 1,3-cyclodione.
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Affiliation(s)
- Hemanta Hazarika
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India
| | - Kangkana Chutia
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
| | - Babulal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India
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3
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Mondal B, Roy UK. Making and breaking of Zn–C bonds in the cases of allyl and propargyl organozincs. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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4
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Zhang S, Wang P, Cao X. Applications of Ytterbium(II) Reagent as Grignard Reagent and Single-Electron Transfer Reagent in the Synthesis of 3-Substituted 2-Oxindoles. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1516-7917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractThe use of ytterbium(II) reagent as both nucleophilic reagent and single-electron transfer reagent in the reaction of isatin derivatives with ytterbium(II) reagent is reported. From a synthetic point of view, a general, efficient, and experimentally simple one-pot method for the preparation of 3-substituted 2-oxindoles was developed.
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5
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Luo X, Zhang Q, Jiang Y, Wang C, Song X, Li J, Yan Q, Chan ASC, Zou Y. Copper-Catalyzed Lactamization of ( E)-2-(2-Bromophenyl)-3-arylacrylamides for the Synthesis of ( E)-3-Arylideneindolin-2-ones. J Org Chem 2021; 86:6698-6710. [PMID: 33881860 DOI: 10.1021/acs.joc.1c00452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A copper-catalyzed, ligand-free intramolecular C-N coupling of (E)-2-(2-bromophenyl)-3-arylacrylamides has been developed. This protocol provides an efficient and practical synthetic route for the biologically important (E)-3-arylideneindolin-2-ones from o-bromophenylacetic acids and aromatic or conjugated alkenyl aldehydes. Readily available starting materials, mild and noble metal-free conditions, high efficiency, and good tolerability for phenolic hydroxyl groups make this approach attractive and applicable.
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Affiliation(s)
- Xiang Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Qianzhong Zhang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yi Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Chengxin Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, People's Republic of China
| | - Xianheng Song
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jianheng Li
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Qinfang Yan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Albert S C Chan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China.,Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, Guangzhou 510000, People's Republic of China
| | - Yong Zou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China.,Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery, Guangzhou 510000, People's Republic of China
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6
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Zhao LM, Liu K, Li DF. One-Pot Synthesis of Aza-Morita-Baylis-Hillman Adducts via Zinc-Mediated Allylation of 4-Bromocrotonates and Imines. J Org Chem 2019; 84:15429-15436. [PMID: 31657557 DOI: 10.1021/acs.joc.9b02434] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An approach to the synthetically valuable β-substituted aza-Morita-Baylis-Hillman (MBH) type products, through zinc-mediated allylation of imines with 4-bromocrotonates followed by subsequent isomerization of the double bond, was developed. Complementary to classical MBH reaction, this reaction utilizes easily available 4-bromocrotonates as the reaction partners, providing a rapid alternative to the traditional use of α,β-unsaturated carbonyl compounds. The short reaction time, one-pot operation, broad substrate scopes, gram-scale synthesis, and synthetic application exemplified the utility and practicability of this method.
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Affiliation(s)
- Li-Ming Zhao
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China.,State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Kun Liu
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China
| | - De-Feng Li
- School of Chemistry and Materials Science , Jiangsu Normal University , Xuzhou 221116 , Jiangsu , China
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7
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Wang X, Huang D, Wang K, Liu J, Zong W, Wang J, Su Y, Hu Y. Tin powder promoted synthesis of trifluoroethylamine‐containing 3,3′‐disubstituted oxindoles. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4995] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Xiaoping Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Danfeng Huang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Ke‐Hu Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Jiaxin Liu
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Wuzhong Zong
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Juanjuan Wang
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Yingpeng Su
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
| | - Yulai Hu
- College of Chemistry and Chemical EngineeringNorthwest Normal University Anning East 967 Road Lanzhou Gansu 730070 P. R. China
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8
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Li DF, Gu Y, Zhang JR, Liu K, Zhao LM. Diastereoselective Construction of Spiro-furo[3,2-c]benzopyranoxindoles through a Cu(OTf)2/AcOH Cooperative Promoted Bicyclization Reaction. J Org Chem 2018; 84:879-887. [DOI: 10.1021/acs.joc.8b02762] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- De-Feng Li
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Yan Gu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Jing-Ru Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Kun Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, Guangxi Normal University, Guilin 541004, Guangxi, China
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9
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Li DF, Jin HS, Zhang JR, Jiang YX, Zhao LM. Protecting-Group-Free Synthesis of 3-Amino-3-α-prenyl-oxindoles through the Direct Prenylation of Isatin-Derived Imines. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800881] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- De-Feng Li
- School of Chemistry and Materials Science; Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Hai-Shan Jin
- School of Chemistry and Materials Science; Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Jing-Ru Zhang
- School of Chemistry and Materials Science; Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Yi-Xuan Jiang
- School of Chemistry and Materials Science; Jiangsu Normal University; 221116 Xuzhou Jiangsu China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science; Jiangsu Normal University; 221116 Xuzhou Jiangsu China
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources; Guangxi Normal University; 541004 Guangxi China
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10
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Li DF, Liu K, Jiang YX, Gu Y, Zhang JR, Zhao LM. Access to 3-Prenylated Oxindoles by α-Regioselective Prenylation: Application to the Synthesis of (±)-Debromoflustramine E. Org Lett 2018; 20:1122-1125. [PMID: 29400474 DOI: 10.1021/acs.orglett.8b00045] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of a rapid, highly efficient, and one-pot synthesis of C3-α-prenylated oxindoles with simple reagents is described. The process is based on zinc-mediated α-regioselective prenylation of 3-acylidene-oxindole with commercially available prenyl bromide using inexpensive CeCl3 as the catalyst. The new transformation tolerates a wide range of 3-acylidene-oxindoles, providing easy access to a variety of functionalized 3-prenylated oxindoles. The synthetic utility of the approach is verified by formal synthesis of the flustramine family alkaloid (±)-debromoflustramine E.
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Affiliation(s)
- De-Feng Li
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
| | - Kun Liu
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
| | - Yi-Xuan Jiang
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
| | - Yan Gu
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
| | - Jing-Ru Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University , Xuzhou 221116, Jiangsu, China
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11
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Wu Z, Fang X, Leng Y, Yao H, Lin A. Indium-mediated Palladium-catalyzed Allylic Alkylation of Isatins with Alkynes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701139] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Zijun Wu
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Xinxin Fang
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Yuning Leng
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Hequan Yao
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
| | - Aijun Lin
- State Key Laboratory of Natural Medicines (SKLNM) and Department of Medicinal Chemistry; School of Pharmacy, China Pharmaceutical University; Nanjing 210009 People's Republic of China
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12
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Zhang JH, Wang RB, Li DF, Zhao LM. Green Method To Preparing Oxindole-Fused Spirotetrahydrofuran Scaffolds through Methanesulfonic Acid-Catalyzed Cyclization Reactions of 3-Allyl-3-hydroxy-2-oxindole in Water. ACS OMEGA 2017; 2:7022-7028. [PMID: 31457284 PMCID: PMC6645229 DOI: 10.1021/acsomega.7b01279] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 10/09/2017] [Indexed: 06/10/2023]
Abstract
Water is an ideal solvent for chemical transformations in environmentally friendly and sustainable processes. An operationally simple, metal-free, and green approach to the synthesis of oxindole-fused spirotetrahydrofurans from 3-allyl-3-hydroxy-2-oxindoles in water is described. This method requires only cheap methanesulfonic acid as a catalyst and eliminates the need of complicated reagents. This atom- and step-economical transformation is highly efficient, which provides a new approach for the construction of oxindole-fused spirotetrahydrofuran molecules with potential pharmaceutical interest.
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Affiliation(s)
- Jie-Huan Zhang
- School
of Chemistry and Materials Science, Jiangsu
Normal University, Xuzhou 221116, Jiangsu, China
| | - Ru-Bing Wang
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines,
Institute of Materia Medica, Chinese Academy
of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - De-Feng Li
- School
of Chemistry and Materials Science, Jiangsu
Normal University, Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School
of Chemistry and Materials Science, Jiangsu
Normal University, Xuzhou 221116, Jiangsu, China
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13
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Zhao LM, Gao HS, Li DF, Dong J, Sang LL, Ji J. Zinc-mediated α-regioselective Barbier-type cinnamylation reactions of aldehydes, ketones and esters. Org Biomol Chem 2017; 15:4359-4366. [PMID: 28474723 DOI: 10.1039/c7ob00723j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report a simple, efficient, and general method for the zinc-mediated regioselective cinnamylation of aldehydes and ketones under Barbier-type conditions in a one-pot synthesis affording the corresponding α-cinnamylated alcohols in moderate to excellent yields. Compared to the literature procedures, this approach is operationally simple, uses simple reactants, and provides direct access to linear α-cinnamylated alcohols with excellent regioselectivity. Experimental results suggest that the reactions proceed through the radical pathway. In addition, the reaction was found to be scalable to the gram-scale and the one-pot protocol is also applicable to less reactive esters leading to bishomoallylic alcohols which were valuable intermediates for desymmetrizing intramolecular Heck cyclization, allowing for the elaboration to functionalized building blocks.
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Affiliation(s)
- Li-Ming Zhao
- School of Chemistry and Chemical Engineering, and Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China.
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