1
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Cook A, Newman SG. Alcohols as Substrates in Transition-Metal-Catalyzed Arylation, Alkylation, and Related Reactions. Chem Rev 2024; 124:6078-6144. [PMID: 38630862 DOI: 10.1021/acs.chemrev.4c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Alcohols are abundant and attractive feedstock molecules for organic synthesis. Many methods for their functionalization require them to first be converted into a more activated derivative, while recent years have seen a vast increase in the number of complexity-building transformations that directly harness unprotected alcohols. This Review discusses how transition metal catalysis can be used toward this goal. These transformations are broadly classified into three categories. Deoxygenative functionalizations, representing derivatization of the C-O bond, enable the alcohol to act as a leaving group toward the formation of new C-C bonds. Etherifications, characterized by derivatization of the O-H bond, represent classical reactivity that has been modernized to include mild reaction conditions, diverse reaction partners, and high selectivities. Lastly, chain functionalization reactions are described, wherein the alcohol group acts as a mediator in formal C-H functionalization reactions of the alkyl backbone. Each of these three classes of transformation will be discussed in context of intermolecular arylation, alkylation, and related reactions, illustrating how catalysis can enable alcohols to be directly harnessed for organic synthesis.
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Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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2
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Zhao D, Pan Y, Guo S, Chen X, Hou H, Han Y, Yan C, Shi Y, Zhu S. Copper-Catalyzed Oxidative Dearomatized Oxyalkylation of Indoles with Alcohols: Synthesis of 3-Alkoxy-2-Oxindoles. J Org Chem 2022; 87:16867-16872. [DOI: 10.1021/acs.joc.2c02073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dengyang Zhao
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Shengkun Guo
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyun Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang 212005, China
| | - Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
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3
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Sivaraman S, Aruljothi S, Vaithiyanathan V. Allylic arylative isomerisation of Morita-Baylis-Hillman adduct of isatin derivatives with arenes using FeCl3 and K-10 clay. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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4
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Shaikh MA, Samal PP, Ubale AS, Krishnamurty S, Gnanaprakasam B. Lewis Acid-Catalyzed Chemodivergent and Regiospecific Reaction of Phenols with Quaternary Peroxyoxindoles. J Org Chem 2022; 87:14155-14167. [PMID: 36269888 DOI: 10.1021/acs.joc.2c01701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The indium-catalyzed regiospecific coupling of substituted phenol derivatives and quaternary peroxyoxindoles for the synthesis of C2 or C4 benzoxazin-3-one-substituted phenols via skeletal rearrangement is described. This reaction is demonstrated with 17 examples with good yields and diverse aryl substituents. In contrast to the indium-catalyzed reaction, the Cu(OTf)2-catalyzed reaction of the phenol with quaternary peroxyoxindoles afforded C2 or C4 2-oxindole-substituted phenol derivatives. This diverse catalytic reaction generated various biologically important phenol-substituted 2-oxindole derivatives directly without any skeleton rearrangement and was demonstrated with 19 examples in high yield. The regiospecificity and the reaction pathways were explained with the support of density functional theory (DFT).
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Affiliation(s)
- Moseen A Shaikh
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
| | - Pragnya Paramita Samal
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Akash S Ubale
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
| | - Sailaja Krishnamurty
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, Maharashtra 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune, Maharashtra 411008, India
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5
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Liu L, Wang Q, Li Y, Wu M. 3‐Pyrazolyl‐oxindoles as efficient nucleophiles for construction of 3,3′‐diheterocycle substituted oxindoles using chitosan as reusable catalyst in water. J Heterocycl Chem 2021. [DOI: 10.1002/jhet.4390] [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)
- Li Liu
- Key Laboratory of Tropical Medicinal Resource Chemistry of the Ministry of Education Hainan Normal University Haikou China
| | - Qing‐He Wang
- Key Laboratory of Tropical Medicinal Resource Chemistry of the Ministry of Education Hainan Normal University Haikou China
| | - Yue Li
- Key Laboratory of Tropical Medicinal Resource Chemistry of the Ministry of Education Hainan Normal University Haikou China
| | - Ming‐Shu Wu
- Key Laboratory of Tropical Medicinal Resource Chemistry of the Ministry of Education Hainan Normal University Haikou China
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6
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Samikannu R, Sethuraman S, Akula N, Radhakrishnan V, Kamisetti S, Banu S, Vetrichelvan M, Gupta A, Li J, Rampulla R, Mathur A. Solvent-specific, DAST-mediated intramolecular Friedel-Crafts reaction: access to dibenzoxepine-fused spirooxindoles. Org Biomol Chem 2021; 19:1760-1768. [PMID: 33538747 DOI: 10.1039/d0ob02461a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A facile, DAST-mediated intramolecular cyclization of 3-hydroxy-3-(2-((3-methoxybenzyl)oxy)phenyl)indolin-2-one derivatives for the synthesis of spirooxindoles fused with dibenzoxepine moieties is described. The success of this reaction is highly dependent on the choice of solvent (promoted by DCM and 1,2-DCE) and the electronic nature of the pendant aromatic ring, which is favored by the presence of electron-donating substituents. The reaction is believed to proceed through an intramolecular Friedel-Crafts-type reaction. Various dibenzoxepine-fused spirooxindoles were successfully synthesized in up to 98% yield. This methodology provides libraries of structurally diverse and medicinally important small molecules that could aid in the search for new bioactive molecules.
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Affiliation(s)
- Ramesh Samikannu
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Sankaranarayanan Sethuraman
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Nagaraja Akula
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Vignesh Radhakrishnan
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Srinivasarao Kamisetti
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Shabana Banu
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Muthalagu Vetrichelvan
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Anuradha Gupta
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India.
| | - Jianqing Li
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, 100 Binney St., Cambridge, MA 02142, USA
| | - Richard Rampulla
- Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, P.O. Box 5400, Princeton, New Jersey 08543-4000, USA
| | - Arvind Mathur
- Department of Discovery Synthesis, Biocon Bristol Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Jigani Link Road, Bommasandra IV, Bangalore 560100, India. and Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, P.O. Box 5400, Princeton, New Jersey 08543-4000, USA
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7
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Tang Z, Wang Z, Peng Z, Yang Q, Yin SF, Qiu R. I 2-Mediated Cross-Dehydrogenative Coupling and Amidation of 3-Aryl Benzofuranones with Aryl Amines for the Synthesis of 3,3-Diaryl Indolin-2-ones. J Org Chem 2021; 86:2965-2973. [PMID: 33492130 DOI: 10.1021/acs.joc.0c02846] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed a protocol for efficient synthesis of indolin-2-ones from benzofuranones and aryl amines using iodine as a mediator. A diverse range of benzofuranones and aryl amines undergo cross-dehydrogenative coupling and amidation of 3-aryl benzofuranones for the cascade reaction to generate products in 24-93% yields. This reaction can be easily scaled-up to give an indolin-2-one in a gram scale. Further chemical manipulation of the products enabled useful transformations of the phenol ring including alkylation, arylation, etc.
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Affiliation(s)
- Zhi Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China.,Key Laboratory of Ministry of Education for Advanced Materials in Tropical Island Resources, Hainan Provincial Key Lab of Fine Chem, Hainan University, Haikou, 570228, China
| | - Zhiqing Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Zhihong Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Qinghua Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
| | - Renhua Qiu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, P. R. China
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8
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Guan R, Hsu C, Han J. Trifluoroethanol‐mediated Decarboxylative Addition Reactions of β‐Ketoacids with Diverse Electrophiles. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ren‐You Guan
- Department of Chemistry National Chung Hsing University 145 Xingda Rd., South Dist. Taichung City 402 Taiwan R.O.C
| | - Chan‐Wei Hsu
- Department of Chemistry Chung Yuan Christian University 200 Chung Pei Road, Chung Li District Taoyuan City 32023 Taiwan R.O.C
| | - Jeng‐Liang Han
- Department of Chemistry National Chung Hsing University 145 Xingda Rd., South Dist. Taichung City 402 Taiwan R.O.C
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9
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Sugawara M, Ohnishi R, Ezawa T, Akakabe M, Sawamura M, Hojo D, Hashizume D, Sohtome Y, Sodeoka M. Regiodivergent Oxidative Cross-Coupling of Catechols with Persistent tert-Carbon Radicals. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03986] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Masumi Sugawara
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Rikako Ohnishi
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Tetsuya Ezawa
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mai Akakabe
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Miki Sawamura
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daiki Hojo
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshihiro Sohtome
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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10
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Laxmikeshav K, Sakla AP, Rasane S, John SE, Shankaraiah N. Microwave‐Assisted Regioselective Friedel–Crafts Arylation by BF
3
⋅ OEt
2
: A Facile Synthetic Access to 3‐Substituted‐3‐Propargyl Oxindole Scaffolds. ChemistrySelect 2020. [DOI: 10.1002/slct.202001660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Kritika Laxmikeshav
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 India
| | - Akash P. Sakla
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 India
| | - Sai Rasane
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 India
| | - Stephy Elza John
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 India
| | - Nagula Shankaraiah
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500 037 India
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11
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Serbian I, Loesche A, Sommerwerk S, Liebing P, Ströhl D, Csuk R. In the Mists of a Fungal Metabolite: An Unexpected Reaction of 2,4,5-Trimethoxyphenylglyoxylic Acid. Molecules 2020; 25:molecules25081978. [PMID: 32340302 PMCID: PMC7221594 DOI: 10.3390/molecules25081978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/09/2020] [Accepted: 04/21/2020] [Indexed: 11/30/2022] Open
Abstract
The reactions of phenylglyoxylic acids during the synthesis and biological evaluation of fungal metabolites led to the discovery of hitherto unknown compounds with a p-quinone methide (p-QM) structure. The formation of these p-QMs using 13C-labelled starting materials revealed a key-step of this reaction being a retro-Friedel–Crafts alkylation.
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Affiliation(s)
- Immo Serbian
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany; (I.S.); (A.L.); (S.S.); (D.S.)
| | - Anne Loesche
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany; (I.S.); (A.L.); (S.S.); (D.S.)
| | - Sven Sommerwerk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany; (I.S.); (A.L.); (S.S.); (D.S.)
| | - Phil Liebing
- Otto von Guericke Universität Magdeburg, Chemisches Institut, Universitätsplatz 2, D-39106 Magdeburg, Germany;
| | - Dieter Ströhl
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany; (I.S.); (A.L.); (S.S.); (D.S.)
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120 Halle (Saale), Germany; (I.S.); (A.L.); (S.S.); (D.S.)
- Correspondence: ; Tel.: +49-345-55-25660
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12
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Rani D, Bhargava M, Agarwal J. Asymmetric Michael Addition of Unactivated Ketones with β‐Nitrostyrenes Mediated by Bifunctional L‐Prolinamide Organocatalysts. ChemistrySelect 2020. [DOI: 10.1002/slct.202000136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dixita Rani
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Meha Bhargava
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
| | - Jyoti Agarwal
- Department of Chemistry and Center of Advanced Studies Panjab University Chandigarh 160014 India
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13
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Zhou Z, Xu Y, Zhu B, Li P, Hu G, Yang F, Xu S, Zhang X. One-pot synthesis of 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides. NEW J CHEM 2020. [DOI: 10.1039/d0nj04588h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A novel one-pot method to prepare 3-hydroxy-2-oxindoles via acyloin rearrangements of 2-hydroxy-indolin-3-ones generated in situ from 2-alkynyl arylazides has been described.
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Affiliation(s)
- Zhiqiang Zhou
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Yao Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Boyu Zhu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Ping Li
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Guiwen Hu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Fan Yang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Shijie Xu
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Xiaoxiang Zhang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products
- College of Chemical Engineering
- Nanjing Forestry University
- Nanjing 210037
- China
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14
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Paluru DK, Mahesh S, Ahmad F, Vijaya Anand R. A Cascade Synthesis of Hetero‐arylated Triarylmethanes Through a Double 5‐
endo
‐dig Cyclization Sequence. Chem Asian J 2019; 14:4688-4695. [DOI: 10.1002/asia.201900960] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/03/2019] [Indexed: 12/17/2022]
Affiliation(s)
- Dilip K. Paluru
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Sriram Mahesh
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Sector 81, Knowledge City, S. A. S. Nagar, Manauli (PO) Punjab- 140306 India
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15
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Yi B, Yan N, Yi N, Xie Y, Wen X, Au CT, Lan D. Oxidative cyanation of N-aryltetrahydroisoquinoline induced by visible light for the synthesis of α-aminonitrile using potassium thiocyanate as a “CN” agent. RSC Adv 2019; 9:29721-29725. [PMID: 35531501 PMCID: PMC9071963 DOI: 10.1039/c9ra06120g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 09/12/2019] [Indexed: 11/21/2022] Open
Abstract
A novel method for the synthesis of α-aminonitrile, through visible-light-induced oxidative cyanation of N-aryltetrahydroisoquinoline with potassium thiocyanate, has been developed.
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Affiliation(s)
- Bing Yi
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Ning Yan
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Niannian Yi
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Yanjun Xie
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Xiaoyong Wen
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Chak-Tong Au
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
| | - Donghui Lan
- Hunan Province Key Laboratory of Environmental Catalysis and Waste Rechemistry
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan
- P. R. China
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16
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Liu XL, Yue J, Chen S, Liu HH, Yang KM, Feng TT, Zhou Y. Thermal-mediated catalyst-free heterolytic cleavage of 3-halooxindoles: rapid access to 3-functionalized-2-oxindoles. Org Chem Front 2019. [DOI: 10.1039/c8qo01222a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein a previously unreported catalyst-free SN1 reaction of the 3-halooxindoles to build 3-functionalized-2-oxindoles is described.
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Affiliation(s)
- Xiong-Li Liu
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
| | - Jing Yue
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Shuang Chen
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Huan-Huan Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Kai-Mo Yang
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine
- Guizhou University
- Guiyang
- P. R. China
| | - Ting-Ting Feng
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences
- Guizhou University of Chinese Medicine
- Guiyang
- P. R. China
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17
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Sharma N, Peddinti RK. Experimental and theoretical investigations of regioselective functionalization of 3-hydroxy bisindoles with thiols. Org Biomol Chem 2018; 16:9259-9268. [PMID: 30465586 DOI: 10.1039/c8ob02118j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An instant and efficient p-TSA·H2O-catalyzed sulfenylation reaction of 3-hydroxy bisindole derivatives is reported. This highly regioselective approach afforded C-3 functionalized products in excellent yield, and this methodology was found to be compatible with both aromatic and aliphatic thiols having electronic and steric divergence as well as diverse functional groups. The sulfenylation reaction was performed at room temperature with a green solvent with minimal catalyst loading and proceeded with the involvement of a quasi-antiaromatic-2H-indol-2-one ring intermediate. Moreover, the experimental results obtained for the sulfenylation reaction of 3-hydroxy bisindoles were supported by theoretical calculations in order to comprehend the regioselectivity and chemical reactivity observed in the thiolation reaction of 3-hydroxy bisindoles. The protocol involved the SN1 pathway, as also demonstrated by theoretical calculations.
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Affiliation(s)
- Nitika Sharma
- Department of Chemistry, Indian Institute of Technology, Roorkee-247667, Uttarakhand, India.
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18
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Efficient synthesis of highly functionalized indole and phenol containing 3,3′-disubstituted oxindoles and chromene fused spirooxindoles. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.10.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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19
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Gao Z, Zhang J, Yang H, Jiang G. Brønsted Acid-Promoted Friedel-Crafts Alkylation/Cyclization of (7-Hydroxynaphthalenyl)pyrrole or (2-Hydroxyphenyl)pyrroles with Isatins for the Construction of Pyrrolospirooxindole Derivatives. J Org Chem 2018; 83:11407-11414. [PMID: 30028135 DOI: 10.1021/acs.joc.8b01703] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient trifluoroacetic acid-catalyzed cascade Friedel-Crafts alkylation/cyclization of 1-(7-hydroxynaphthalenyl)pyrrole or 1-(2-hydroxyphenyl)pyrroles with isatins has been developed, providing practical access to a variety of biologically important pyrrole-containing spirooxindoles.
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Affiliation(s)
- Zeng Gao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences , Lanzhou 730000 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jinlong Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Huameng Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences , Lanzhou 730000 , China
| | - Gaoxi Jiang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Center for Excellence in Molecular Synthesis, Suzhou Research Institute of LICP , Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences , Lanzhou 730000 , China
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20
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Schlegel M, Schneider C. Rapid Construction of Complex 2-Pyrrolines through Lewis Acid-Catalyzed, Sequential Three-Component Reactions via in Situ-Generated 1-Azaallyl Cations. Org Lett 2018; 20:3119-3123. [DOI: 10.1021/acs.orglett.8b01205] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Marcel Schlegel
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
| | - Christoph Schneider
- Institut für Organische Chemie, Universität Leipzig, Johannisallee 29, 04103 Leipzig, Germany
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21
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Gade AB, Bagle PN, Shinde PS, Bhardwaj V, Banerjee S, Chande A, Patil NT. Catalytic Enantioselective 1,3-Alkyl Shift in Alkyl Aryl Ethers: Efficient Synthesis of Optically Active 3,3′-Diaryloxindoles. Angew Chem Int Ed Engl 2018; 57:5735-5739. [DOI: 10.1002/anie.201801650] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/12/2018] [Indexed: 12/27/2022]
Affiliation(s)
- Amol B. Gade
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Pradip N. Bagle
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Popat S. Shinde
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Vipin Bhardwaj
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
| | - Subhrashis Banerjee
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr Homi Bhabha Road Pune - 411 008 India
| | - Ajit Chande
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
| | - Nitin T. Patil
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
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22
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Gade AB, Bagle PN, Shinde PS, Bhardwaj V, Banerjee S, Chande A, Patil NT. Catalytic Enantioselective 1,3-Alkyl Shift in Alkyl Aryl Ethers: Efficient Synthesis of Optically Active 3,3′-Diaryloxindoles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801650] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Amol B. Gade
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Pradip N. Bagle
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Popat S. Shinde
- Division of Organic Chemistry; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune - 411 008 India
- Academy of Scientific and Innovative Research (AcSIR); New Delhi - 110 025 India
| | - Vipin Bhardwaj
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
| | - Subhrashis Banerjee
- Physical and Materials Chemistry Division; CSIR-National Chemical Laboratory; Dr Homi Bhabha Road Pune - 411 008 India
| | - Ajit Chande
- Department of Biological Sciences; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
| | - Nitin T. Patil
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal, Bhauri; Bhopal 462 066 India
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23
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Seo DY, Kim G, Jo HY, Kim JN. Synthesis of Cyclopentadiindolyl Spirooxindoles via Palladium-catalyzed Intramolecular Oxidative Indole-Indole Coupling Reaction. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Da Young Seo
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Gieun Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Hwi Yul Jo
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
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24
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Kinthada LK, Babu KN, Padhi D, Bisai A. Lewis-Acid-Catalysed Reaction of 3-Hydroxy-2-oxindoles with Terminal Alkynes: Synthetic Approaches to the Pyrroloindoline Alkaloids. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700507] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lakshmana K. Kinthada
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - K. Naresh Babu
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - Dikshaa Padhi
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
| | - Alakesh Bisai
- Department of Chemistry; Indian Institute of Science Education and Research Bhopal; Bhopal Bypass Road 462066 Bhouri, Bhopal Madhya Pradesh India
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25
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Shi L, Li L, Wang J, Huang B, Zeng K, Jin H, Zhang Q, Jia Y. Total synthesis of natural spiro-trisindole enantiomers similisines A, B and their stereoisomers. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Affiliation(s)
| | | | - Stephen F. Martin
- Department
of Chemistry, The University of Texas, Austin, Texas 78712, United States
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27
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Regiospecific synthesis of 1,5,6,7-tetrahydro-4 H -indol-4-ones via dehydroxylated [3+2] cyclization of β -hydroxy ketones with cyclic enaminones. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.03.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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28
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Sharma N, Peddinti RK. BF 3·OEt 2 Mediated Regioselective Reaction of Electron-Rich Arenes with 3-Ylidene Oxindoles. J Org Chem 2017; 82:918-924. [PMID: 27992723 DOI: 10.1021/acs.joc.6b02395] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A BF3·OEt2 mediated novel and regioselective protocol for the construction of a C-C bond between 3-ylidene oxindoles and electron-rich arenes has been successfully accomplished. The reaction was compatible with a wide variety of electron-rich arenes. A cascade reaction of 3-ylidene oxindoles with phenols and β-naphthol resulted in 2,3-difunctionalized benzofuran and lactone bearing indoline-2-one scaffolds under same conditions.
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Affiliation(s)
- Nitika Sharma
- Department of Chemistry, Indian Institute of Technology , Roorkee-247667, Uttarakhand, India
| | - Rama Krishna Peddinti
- Department of Chemistry, Indian Institute of Technology , Roorkee-247667, Uttarakhand, India
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29
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Tokuyama H, Sato S, Hirayama A, Adachi T, Kawauchi D, Ueda H. AgNTf2-Mediated Arylation of Bromopyrroloindolines. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Samineni R, Bandi CRC, Srihari P, Mehta G. Multiple Aryne Insertions into Oxindoles: Synthesis of Bioactive 3,3-Diarylated Oxindoles and Dibenzo[b,e]azepin-6-ones. Org Lett 2016; 18:6184-6187. [DOI: 10.1021/acs.orglett.6b03224] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ramesh Samineni
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Chandramohan Reddy C. Bandi
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Pabbaraja Srihari
- Division
of Natural Products Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
| | - Goverdhan Mehta
- School
of Chemistry, University of Hyderabad, Hyderabad-500 046, India
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31
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Moon HR, Lee S, Roh HJ, Kim JN. Facile Synthesis of 3-Aryl-3-hydroxy-2-oxindoles from 2-Arylindoles. B KOREAN CHEM SOC 2016. [DOI: 10.1002/bkcs.10807] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Sangku Lee
- Targeted Medicine Research Center; Korea Research Institute of Bioscience and Biotechnology; Chungbuk 363-883 Korea
| | - Hwa Jung Roh
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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32
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Yu B, Xing H, Yu DQ, Liu HM. Catalytic asymmetric synthesis of biologically important 3-hydroxyoxindoles: an update. Beilstein J Org Chem 2016; 12:1000-1039. [PMID: 27340490 PMCID: PMC4902056 DOI: 10.3762/bjoc.12.98] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/30/2016] [Indexed: 12/14/2022] Open
Abstract
Oxindole scaffolds are prevalent in natural products and have been recognized as privileged substructures in new drug discovery. Several oxindole-containing compounds have advanced into clinical trials for the treatment of different diseases. Among these compounds, enantioenriched 3-hydroxyoxindole scaffolds also exist in natural products and have proven to possess promising biological activities. A large number of catalytic asymmetric strategies toward the construction of 3-hydroxyoxindoles based on transition metal catalysis and organocatalysis have been reported in the last decades. Additionally, 3-hydroxyoxindoles as versatile precursors have also been used in the total synthesis of natural products and for constructing structurally novel scaffolds. In this review, we aim to provide an overview about the catalytic asymmetric synthesis of biologically important 3-substituted 3-hydroxyoxindoles and 3-hydroxyoxindole-based further transformations.
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Affiliation(s)
- Bin Yu
- School of Pharmaceutical Sciences & Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China
| | - Hui Xing
- School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, 4072, Queensland, Australia
| | - De-Quan Yu
- School of Pharmaceutical Sciences & Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China
| | - Hong-Min Liu
- School of Pharmaceutical Sciences & Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou University, Zhengzhou 450001, China
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33
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Lim JW, Kim KH, Moon HR, Kim JN. Transition metal and base-free synthesis of 3,3-diaryl-2-oxindoles from 2,2,N-triarylacetamides. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Loach RP, Fenton OS, Movassaghi M. Concise Total Synthesis of (+)-Asperazine, (+)-Pestalazine A, and (+)-iso-Pestalazine A. Structure Revision of (+)-Pestalazine A. J Am Chem Soc 2016; 138:1057-64. [PMID: 26726924 PMCID: PMC4908971 DOI: 10.1021/jacs.5b12392] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The concise, enantioselective total syntheses of (+)-asperazine (1), (+)-iso-pestalazine A (2), and (+)-pestalazine A (3) have been achieved by the development of a late-stage C3-C8' Friedel-Crafts union of polycyclic diketopiperazines. Our modular strategy enables the union of complex polycyclic diketopiperazines in virtually their final forms, thus providing rapid and highly convergent assembly at the challenging quaternary stereocenter of these dimeric alkaloids. The significance of this carbon-carbon bond formation can be gauged by the manifold constraints that were efficiently overcome, namely the substantial steric crowding at both reactive sites, the nucleophilic addition of C8' over N1' to the C3 carbocation, and the multitude of reactivity posed by the use of complex diketopiperazine fragments in the coupling event. The success of the indoline π-nucleophile that evolved through our studies is notable given the paucity of competing reaction pathways observed in the presence of the highly reactive C3 carbocation generated. This first total synthesis of (+)-pestalazine A also allowed us to revise the molecular structure for this natural alkaloid.
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Affiliation(s)
- Richard P. Loach
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Owen S. Fenton
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Mohammad Movassaghi
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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35
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Alcaide B, Almendros P, Herrera F, Luna A, de Orbe ME, Torres MR. Gallium-Catalyzed Domino Arylation/Oxycyclization of Allenes with Phenols. J Org Chem 2015; 80:4157-63. [DOI: 10.1021/acs.joc.5b00106] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Benito Alcaide
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, IQOG-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
| | - Fernando Herrera
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Amparo Luna
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M. Elena de Orbe
- Grupo
de Lactamas y Heterociclos Bioactivos, Departamento de Química
Orgánica I, Unidad Asociada al CSIC, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M. Rosario Torres
- CAI
Difracción de Rayos X, Facultad de Química, Universidad Complutense de Madrid, 28040 Madrid, Spain
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36
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37
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Babu KN, Kinthada LK, Ghosh S, Bisai A. Highly chemoselective synthesis of dimeric 2-oxindoles with a C-3/C-5′ linkage via Friedel–Crafts alkylations of 2-oxindoles with 3-hydroxy-2-oxindoles. Org Biomol Chem 2015; 13:10641-55. [DOI: 10.1039/c5ob01670c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An expeditious approach to a variety of dimeric 2-oxindoles with a C-3/C-5′ linkage sharing an all-carbon quaternary center at the pseudobenzylic position has been developed via Lewis acid-catalyzed F–C alkylations.
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Affiliation(s)
- K. Naresh Babu
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Lakshmana K. Kinthada
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Santanu Ghosh
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
| | - Alakesh Bisai
- Department of Chemistry
- Indian Institute of Science Education and Research Bhopal
- Bhopal – 462 066
- India
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