1
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Lin H, Hu X, Han B, Yang X, Deng Y, Luo J, Ge Y, Mao B, Wang C, Yuan C. Facile Synthesis of Quinoline-Substituted 3-Hydroxy-2-oxindoles and 3-Amino-2-oxindoles via a Palladium-Catalyzed Cascade Intramolecular Cyclization/Intermolecular Nucleophilic Addition Reaction. J Org Chem 2024; 89:3413-3418. [PMID: 38377573 DOI: 10.1021/acs.joc.3c02837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
An efficient cascade intramolecular cyclization/intermolecular nucleophilic addition reaction of allenyl benzoxazinone with isatin or isatin-derived ketimine has been established by using Pd0-π-Lewis base catalysis. A series of 3-hydroxy-2-oxindoles and 3-amino-2-oxindoles with quaternary carbon atoms at the C3 position were synthesized in good yields under mild conditions through this protocol.
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Affiliation(s)
- Huawei Lin
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Xinyan Hu
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Bing Han
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Xianru Yang
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Yiwei Deng
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Jiayi Luo
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Yanqing Ge
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
| | - Biming Mao
- Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, P. R. China
| | - Chang Wang
- Pharmacy College, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250117, Shandong, P. R. China
| | - Chunhao Yuan
- School of Chemistry and Pharmaceutical Engineering, Shandong First Medical University & Shandong Academy of Medical Sciences, Taian 271016, Shandong, P. R. China
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2
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Durugappa B, C S A, Doddamani SV, Somappa SB. DBU-Catalyzed Diastereo/Regioselective Access to Highly Substituted Spiro-oxetane Oxindoles via Ring Annulation of Isatins and Allenoates. J Org Chem 2023. [PMID: 37363866 DOI: 10.1021/acs.joc.3c00664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
A facile and efficient method for the diastereo/regioselective synthesis of highly functionalized spiro-oxetane oxindoles has been described. The 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU)-catalyzed reaction proceeds via spiro-annulation of isatins and allenoates. The reaction is compatible with a wide range of isatins containing electron-donating groups (EDGs) and electron-withdrawing groups (EWGs) with various allenoates affording the corresponding products in acceptable yields. It is noteworthy that this is the first protocol for constructing structurally diverse motifs of highly functionalized spiro-oxetane oxindoles of pharmaceutical relevance.
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Affiliation(s)
- Basavaraja Durugappa
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Athira C S
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Siddalingeshwar V Doddamani
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sasidhar B Somappa
- Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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3
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Wang Y, Young CM, Cordes DB, Slawin AMZ, Smith AD. Probing Regio- and Enantioselectivity in the Formal [2 + 2] Cycloaddition of C(1)-Alkyl Ammonium Enolates with β- and α,β-Substituted Trifluoromethylenones. J Org Chem 2023. [PMID: 37184337 DOI: 10.1021/acs.joc.2c02688] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The isothiourea-catalyzed regio- and enantioselective formal [2 + 2] cycloaddition of C(1)-alkyl and C(1)-unsubstituted ammonium enolates with β- and α,β-substituted trifluoromethylenones has been developed. In all cases, preferential [2 + 2]-cycloaddition over the alternative [4 + 2]-cycloaddition is observed, giving β-lactones with excellent diastereo- and enantioselectivity (34 examples, up to >95:5 dr, >99:1 er). The regioselectivity of the process was dictated by the nature of the substituents on both reaction components. Solely [2 + 2] cycloaddition products are observed when using α,β-substituted trifluoromethylenones or α-trialkylsilyl acetic acid derivatives; both [2 + 2] and [4 + 2] cycloaddition products are observed when using β-substituted trifluoromethylenones and α-alkyl-α-trialkylsilyl acetic acids as reactants, with the [2 + 2] cycloaddition as the major reaction product. The beneficial role of the α-silyl substituent within the acid component in this protocol has been demonstrated by control experiments.
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Affiliation(s)
- Yihong Wang
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Claire M Young
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - David B Cordes
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, U.K
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4
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Chen X, He P, Xia S, Cui L, Zhong G, Yang L. NHC-Activations on α-, β-, γ-, and Beyond. CHEM REC 2023:e202200279. [PMID: 36916715 DOI: 10.1002/tcr.202200279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/27/2023] [Indexed: 03/15/2023]
Abstract
Over the recent decades, due to the special electronic characteristics and diverse reactivities, N-heterocyclic carbene (NHC) has received significant interest in organocatalyzed reactions. The formation of Breslow intermediates by NHC can convert into acyl anion equivalent, enolates, homoenolate, acyl azolium, and vinyl enolate etc., and the cycloaddition reactions of these species has attracted lots of attention. In this review, we focus on the summry of the development of NHC-activation of carbonyl carbon (or imine carbon) in situ, α-, β-, γ-, and beyond, and the cycloaddition reaction of these species.
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Affiliation(s)
- Xiaoyu Chen
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Pengyu He
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Siqi Xia
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Lixin Cui
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Guofu Zhong
- Department of Chemistry, Eastern Institute for Advanced Study, Ningbo, 315200, China.,School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, China
| | - Limin Yang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
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5
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Mondal S, Ghosh A, Biju AT. N-Heterocyclic Carbene (NHC)-Catalyzed Transformations Involving Azolium Enolates. CHEM REC 2022; 22:e202200054. [PMID: 35562645 DOI: 10.1002/tcr.202200054] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/19/2022] [Indexed: 11/08/2022]
Abstract
The recent advances in the N-heterocyclic carbene (NHC)-organocatalyzed generation of azolium enolate intermediates and their subsequent interception with electrophiles are highlighted. The NHC-bound azolium intermediates are generated by the addition of NHCs to suitably substituted aldehydes, acid derivatives or ketenes. A broad range of coupling partners can intercept the azolium enolates to form [2+n] cycloadducts (n=2,3,4) and various α-functionalized compounds. The enantioselective synthesis of the target compounds are achieved with the use of chiral NHCs. Herein, we summarized the development that occurred in this subclass of NHC catalysis.
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Affiliation(s)
- Santigopal Mondal
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012
| | - Arghya Ghosh
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012
| | - Akkattu T Biju
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012
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6
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Chen Y, Shi B, Yin H, Liu Y, Yu C, Zhang K, Li T, Yao C. Stereoselective synthesis of chiral sultam-fused dihydropyridinones via photopromoted NHC catalyzed [4 + 2] annulation. Org Chem Front 2022. [DOI: 10.1039/d2qo00908k] [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 photopromoted NHC catalyzed asymmetric [4+2] annulation of saccharine-derived azadienes and α-diazoketones was developed, affording the corresponding sultam-fused dihydropyridinones efficiently (up to 80% yield, 99% ee and >20 : 1 d.r.).
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Affiliation(s)
- Yangxu Chen
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Bai Shi
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Huiping Yin
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Yinping Liu
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Chenxia Yu
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Kai Zhang
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Tuanjie Li
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
| | - Changsheng Yao
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, Jiangsu 221116, P R China
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7
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Sun D, Zhang H, Gao J, Guan X, Qin X, Jiang G, Zhang G, Zheng L, Zhang S. Asymmetric Synthesis of Spiro[3,2'-morpholine-oxindoles] Derivatives via the [5 + 1] Annulation Reaction. J Org Chem 2021; 86:16815-16823. [PMID: 34761939 DOI: 10.1021/acs.joc.1c02037] [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
An efficacious method in which BINOL-type chiral imidodiphosphoric acid catalyzed the asymmetric [5 + 1] annulation reaction of 2-pyrrolylphenol with 1-methylindoline-2,3-dione was established. The strategy tolerated a broad substrate scope, and 30 examples were obtained. A range of enantioenriched spiro[3,2'-morpholine-oxindole] derivatives which incorporate a tertiary stereocenter, with moderate to excellent yields (up to 96%) and enantioselectivities (up to 99%) under mild conditions, was delivered.
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8
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Dandia A, Mahawar DK, Saini P, Saini S, Gupta SL, Rathore KS, Parewa V. Site-specific role of bifunctional graphitic carbon nitride catalyst for the sustainable synthesis of 3,3-spirocyclic oxindoles in aqueous media. RSC Adv 2021; 11:28452-28465. [PMID: 35478581 PMCID: PMC9038049 DOI: 10.1039/d1ra03881h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/08/2021] [Indexed: 12/14/2022] Open
Abstract
Functionalized graphitic carbon nitride (Sg-C3N4) has been manufactured and used as a reusable catalyst for the one-pot production of various spiro-pyrano chromenes and spiro indole-3,1′-naphthalene tetracyclic systems in aqueous media. An ultrasound-assisted method has been used for the functionalization of g-C3N4. The catalytic functionalities and the structural integrity of the catalyst were characterized via different analytical tools. The catalytic site-specific role of Sg-C3N4 was confirmed via various control experiments in one-pot reaction sequences. We recognized that Sg-C3N4 acts as a bifunctional acid–base catalyst for the first reaction sequence whereas it is an acidic catalyst for the second reaction sequence during the one-pot production of various spiro-pyrano chromenes. In addition, the bifunctional acid–base catalytic role of Sg-C3N4 has been confirmed for the first reaction sequence whereas it has a basic catalytic role for the second reaction sequence during the one-pot production of spiro indole-3,1′-naphthalene tetracyclic systems. Diverse C–C, C–O, and C–N bonds, six-membered cycles, stereogenic centers, and spiro frameworks were formed in a single reaction, enhancing the biocidal profile and possibly resulting in the discovery of new medicinal properties. The mild reaction environment, simple workup, easy separation, low cost, heterogeneity, and recyclability of Sg-C3N4 are some rewards of this approach. Functionalized graphitic carbon nitride (Sg-C3N4) has been manufactured and used as a reusable catalyst for the one-pot production of various spiro-pyrano chromenes and spiro indole-3,1′-naphthalene tetracyclic systems in aqueous media.![]()
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Affiliation(s)
- Anshu Dandia
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Dinesh Kumar Mahawar
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Pratibha Saini
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Surendra Saini
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
| | - Shyam L Gupta
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India .,Government Polytechnic College Near Itarana Fly Over, Kalimori Alwar Rajasthan 301001 India
| | - Kuldeep S Rathore
- Department of Physics, Arya College of Engineering and IT Jaipur India
| | - Vijay Parewa
- Centre of Advanced Studies, Department of Chemistry, University of Rajasthan Jaipur India
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9
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Meng X, Wang M, Hu C, Su Z. Asymmetric [2 + 2] cycloaddition of isatin with ketene catalyzed by N, N'-dioxide-Sc(III) complex: Mechanism and selectivity. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Jiang Z, Toffano M, Vo‐Thanh G, Bournaud C. Bifunctional N‐Heterocylic Carbene‐Catalyzed Highly Enantioselective Trans‐Cyclopentannulation of Enals and Enones via Homoenolate. ChemCatChem 2020. [DOI: 10.1002/cctc.202001513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhiwei Jiang
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182 Université Paris-Saclay Rue du doyen Georges Poitou 91405 Orsay Cedex France
| | - Martial Toffano
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182 Université Paris-Saclay Rue du doyen Georges Poitou 91405 Orsay Cedex France
| | - Giang Vo‐Thanh
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182 Université Paris-Saclay Rue du doyen Georges Poitou 91405 Orsay Cedex France
| | - Chloée Bournaud
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS UMR 8182 Université Paris-Saclay Rue du doyen Georges Poitou 91405 Orsay Cedex France
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11
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Peng Q, Li SJ, Zhang B, Guo D, Lan Y, Wang J. N-Heterocyclic carbene-catalyzed enantioselective hetero-[10 + 2] annulation. Commun Chem 2020; 3:177. [PMID: 36703423 PMCID: PMC9814252 DOI: 10.1038/s42004-020-00425-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 10/22/2020] [Indexed: 01/29/2023] Open
Abstract
Higher-order cycloadditions are a powerful strategy for the construction of polycycles in one step. However, an efficient and concise version for the induction of asymmetry is lacking. N-heterocyclic carbenes are widely used organocatalysts for asymmetric synthesis and could be an ideal choice for enantioselective higher-order cycloadditions. Here, we report an enantioselective [10 + 2] annulation between catalytically formed aza-benzofulvene intermediates and trifluoromethyl ketone derivatives. This protocol exhibits a wide scope, high yields, and good ee values, reflecting a robust and efficient higher-order cycloaddition. Density functional theory calculations provide an accurate prediction of the reaction enantioselectivity, and in-depth insight to the origins of stereocontrol.
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Affiliation(s)
- Qiupeng Peng
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084 China
| | - Shi-Jun Li
- grid.207374.50000 0001 2189 3846College of Chemistry, and Institute of Green Catalysis, Zhengzhou University, Zhengzhou, 450001 China
| | - Bei Zhang
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084 China
| | - Donghui Guo
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084 China
| | - Yu Lan
- grid.207374.50000 0001 2189 3846College of Chemistry, and Institute of Green Catalysis, Zhengzhou University, Zhengzhou, 450001 China ,grid.190737.b0000 0001 0154 0904School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 400030 China
| | - Jian Wang
- grid.12527.330000 0001 0662 3178School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases Key Laboratory of Bioorganic Phosphorous Chemistry and Chemical Biology (Ministry of Education), Tsinghua University, Beijing, 100084 China
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12
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Dzieszkowski K, Barańska I, Mroczyńska K, Słotwiński M, Rafiński Z. Organocatalytic Name Reactions Enabled by NHCs. MATERIALS 2020; 13:ma13163574. [PMID: 32823580 PMCID: PMC7475904 DOI: 10.3390/ma13163574] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/07/2020] [Accepted: 08/09/2020] [Indexed: 12/20/2022]
Abstract
Giving reactions the names of their discoverers is an extraordinary tradition of organic chemistry. Nowadays, this phenomenon is much rarer, although already named historical reactions are still often developed. This is also true in the case of a broad branch of N-heterocyclic carbenes catalysis. NHCs allow many unique synthetic paths, including commonly known name reactions. This article aims to gather this extensive knowledge and compare historical reactions with current developed processes. Furthermore, this review is a great opportunity to highlight some of the unique applications of these procedures in the total synthesis of biologically active compounds. Hence, this concise article may also be a source of knowledge for scientists just starting their adventure with N-heterocyclic carbene chemistry.
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13
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Wang C, Wang Z, Yang J, Shi SH, Hui XP. Sequential Visible-Light and N-Heterocyclic Carbene Catalysis: Stereoselective Synthesis of Tetrahydropyrano[2,3-b]indoles. Org Lett 2020; 22:4440-4443. [DOI: 10.1021/acs.orglett.0c01447] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Chengyuan Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Zheyuan Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shi-Hui Shi
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi, P. R. China
| | - Xin-Ping Hui
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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14
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Palomba M, Scarcella E, Sancineto L, Bagnoli L, Santi C, Marini F. Synthesis of Spirooxindole Oxetanes Through a Domino Reaction of 3-Hydroxyoxindoles and Phenyl Vinyl Selenone. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900499] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Martina Palomba
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo, 1 - 06123 Perugia Italy
| | - Elisabetta Scarcella
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo, 1 - 06123 Perugia Italy
| | - Luca Sancineto
- Division of Organic Chemistry; Center of Molecular and Macromolecular Studies; Polish academy of Science; Sienkiewicza, 112 90-363 Lodz Poland
| | - Luana Bagnoli
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo, 1 - 06123 Perugia Italy
| | - Claudio Santi
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo, 1 - 06123 Perugia Italy
| | - Francesca Marini
- Department of Pharmaceutical Sciences; University of Perugia; Via del Liceo, 1 - 06123 Perugia Italy
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15
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Barrios Antúnez DJ, Greenhalgh MD, Brueckner AC, Walden DM, Elías-Rodríguez P, Roberts P, Young BG, West TH, Slawin AMZ, Ha-Yeon Cheong P, Smith AD. Catalytic enantioselective synthesis of perfluoroalkyl-substituted β-lactones via a concerted asynchronous [2 + 2] cycloaddition: a synthetic and computational study. Chem Sci 2019; 10:6162-6173. [PMID: 31360423 PMCID: PMC6585878 DOI: 10.1039/c9sc00390h] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/27/2019] [Indexed: 11/21/2022] Open
Abstract
The enantioselective preparation of a range of perfluoroalkyl-substituted β-lactones through an isothiourea (HyperBTM) catalysed reaction using symmetric anhydrides as ammonium enolate precursors and perfluoroalkylketones (RF = CF3, C2F5, C4F9) is reported. Following optimisation, high diastereo- and enantioselectivity was observed for β-lactone formation using C2F5- and C4F9-substituted ketones at room temperature (26 examples, up to >95 : 5 dr and >99 : 1 er), whilst -78 °C was necessary for optimal dr and er with CF3-substituted ketones (11 examples, up to >95 : 5 dr and >99 : 1 er). Derivatisation of the β-lactones through ring-opening, as well as a two-step conversion to give perfluoroalkyl-substituted oxetanes, is demonstrated without loss of stereochemical integrity. Density functional theory computations, alongside 13C natural abundance KIE studies, have been used to probe the reaction mechanism with a concerted asynchronous [2 + 2]-cycloaddition pathway favoured over a stepwise aldol-lactonisation process.
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Affiliation(s)
| | - Mark D Greenhalgh
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Alexander C Brueckner
- Department of Chemistry , Oregon State University , 153 Gilbert Hall , Corvallis , Oregon 97333 , USA .
| | - Daniel M Walden
- Department of Chemistry , Oregon State University , 153 Gilbert Hall , Corvallis , Oregon 97333 , USA .
| | - Pilar Elías-Rodríguez
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Patrick Roberts
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Benjamin G Young
- Department of Chemistry, Physics, and Engineering , Biola University , 315 Lim Center , La Mirada , California 90639 , USA
| | - Thomas H West
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Alexandra M Z Slawin
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
| | - Paul Ha-Yeon Cheong
- Department of Chemistry , Oregon State University , 153 Gilbert Hall , Corvallis , Oregon 97333 , USA .
| | - Andrew D Smith
- EaStCHEM , School of Chemistry , University of St Andrews , North Haugh , St Andrews , KY16 9ST , UK .
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16
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Liu Q, Chen X, Li S, Rissanen K, Enders D. N‐Heterocyclic Carbene Catalyzed Asymmetric Synthesis of Pentacyclic Spirooxindoles via [3+3] Annulations of Isatin‐Derived Enals and Cyclic N‐Sulfonyl Ketimines. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900065] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Qiang Liu
- Institute of Organic ChemistryRWTH Aachen University Aachen 52074 Germany
| | - Xiang‐Yu Chen
- Institute of Organic ChemistryRWTH Aachen University Aachen 52074 Germany
| | - Sun Li
- Institute of Organic ChemistryRWTH Aachen University Aachen 52074 Germany
| | - Kari Rissanen
- Department of ChemistryUniversity of Jyvaskyla, P. O. Box 35 40014 Jyväskylä Finland
| | - Dieter Enders
- Institute of Organic ChemistryRWTH Aachen University Aachen 52074 Germany
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17
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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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18
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Gao Y, Liu D, Fu Z, Huang W. Facile Synthesis of 2,2-Diacyl Spirocyclohexanones via an N-Heterocyclic Carbene-Catalyzed Formal [3C + 3C] Annulation. Org Lett 2019; 21:926-930. [PMID: 30714381 DOI: 10.1021/acs.orglett.8b03892] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A novel strategy for the construction of 2,2-diacyl spirocyclohexanones 3 has been demonstrated on the basis of an NHC-catalyzed [3C + 3C] annulation of potassium 2-oxo-3-enoates with 2-ethylidene 1,3-indandiones. Furthermore, enantioenriched 3 was obtained in good to excellent yields with good enantioselectivities when chiral N-heterocyclic carbene (NHC) was employed. Notably, ring opening of the resulting 2,2-diacyl spirocyclohexanones 3 with hydrazine led to the formation of phthalazinones in good to excellent yields.
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Affiliation(s)
- Yaru Gao
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China.,Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Dehai Liu
- Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Zhenqian Fu
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China.,Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
| | - Wei Huang
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , China.,Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , China
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19
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Zhu SY, Zhang Y, Chen XF, Huang J, Shi SH, Hui XP. Highly enantioselective synthesis of functionalized azepino[1,2-a]indolesviaNHC-catalyzed [3+4] annulation. Chem Commun (Camb) 2019; 55:4363-4366. [DOI: 10.1039/c9cc01444f] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The enantioselective [3+4] annulation of 3-formylindol-2-methylmalonates with 2-bromoenals catalyzed by NHCs is described to efficiently synthesise functionalized azepino[1,2-a]indoles.
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Affiliation(s)
- Shi-Ya Zhu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yuanzhen Zhang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xin-Fa Chen
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jun Huang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Shi-Hui Shi
- Shaanxi Key Laboratory of Chemical Reaction Engineering, College of Chemistry and Chemical Engineering
- Yan’an University
- Yan’an 716000
- P. R. China
| | - Xin-Ping Hui
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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20
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Yang W, Wang X, Jin X, Sun H, Guo R, Xu W, Cai Q. Copper‐Catalysed Double
O
‐Arylation for Enantioselective Synthesis of
oxa
‐Spirocycles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801395] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Wenqiang Yang
- College of pharmacyLinyi University Shuangling Road Linyi 276000 People's Republic of China
| | - Xingyuan Wang
- College of pharmacyLinyi University Shuangling Road Linyi 276000 People's Republic of China
| | - Xiao Jin
- College of pharmacyLinyi University Shuangling Road Linyi 276000 People's Republic of China
| | - Han Sun
- College of pharmacyLinyi University Shuangling Road Linyi 276000 People's Republic of China
| | - Runan Guo
- College of pharmacyLinyi University Shuangling Road Linyi 276000 People's Republic of China
| | - Wei Xu
- College of PharmacyJinan University No.601 Huangpu Avenue West Guangzhou 510530 People's Republic of China
| | - Qian Cai
- College of PharmacyJinan University No.601 Huangpu Avenue West Guangzhou 510530 People's Republic of China
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21
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Mukherjee S, Biju AT. Recent Advances in the Organocatalytic Enantioselective Synthesis of Functionalized β-Lactones. Chem Asian J 2018; 13:2333-2349. [DOI: 10.1002/asia.201800902] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 07/20/2018] [Indexed: 01/25/2023]
Affiliation(s)
- Subrata Mukherjee
- Organic Chemistry Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road Pune 411008 India
| | - Akkattu T. Biju
- Department of Organic Chemistry; Indian Institute of Science; Bangalore 560012 India
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22
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Yan J, Sun R, Shi K, Li K, Yang L, Zhong G. N-Heterocyclic Carbene-Catalyzed Asymmetric Benzoin Reaction in Water. J Org Chem 2018; 83:7547-7552. [DOI: 10.1021/acs.joc.8b00481] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jun Yan
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Rong Sun
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kuangxi Shi
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Kai Li
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Limin Yang
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Guofu Zhong
- College of Materials, Chemistry & Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
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23
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N-Heterocyclic Carbene-Catalyzed Double Michael Addition: Stereoselective Synthesis of Spirofluorenes and Multisubstituted Indanes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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24
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Yan J, Shi K, Zhao C, Ding L, Jiang S, Yang L, Zhong G. NHC-catalyzed [4+2] cycloaddition reactions for the synthesis of 3′-spirocyclic oxindoles via a C–F bond cleavage protocol. Chem Commun (Camb) 2018; 54:1567-1570. [DOI: 10.1039/c7cc08048d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chiral NHC-catalyzed cycloaddition of γ-fluoroenals is developed. The nucleophilic γ-carbon generated via C–F bond cleavage undergoes highly enantioselective cycloaddition (up to >99% ee) to isatins and provides 3′-spirocyclic oxindoles in good yields (up to 91%).
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Affiliation(s)
- Jun Yan
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Kuangxi Shi
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Chengtao Zhao
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Liyuan Ding
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Shengsheng Jiang
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Limin Yang
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Guofu Zhong
- College of Material
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
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25
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Li PG, Yan C, Zhu S, Liu SH, Zou LH. Direct construction of benzimidazo[l,2-c]quinazolin-6-ones via metal-free oxidative C–C bond cleavage. Org Chem Front 2018. [DOI: 10.1039/c8qo01039k] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A highly regioselective protocol has been developed for the synthesis of benzimidazo[l,2-c]quinazolin-6-ones via C–C bond cleavage and triple C–N bond formation.
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Affiliation(s)
- Ping-Gui Li
- School of Pharmaceutical Science
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
| | - Cheng Yan
- School of Pharmaceutical Science
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
| | - Shuai Zhu
- School of Pharmaceutical Science
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
| | - Shu-Hui Liu
- School of Pharmaceutical Science
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
| | - Liang-Hua Zou
- School of Pharmaceutical Science
- The Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
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26
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Maji B. N-Heterocyclic-Carbene-Catalyzed Reactions of Nitroalkenes: Synthesizing Important Building Blocks. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700520] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Biswajit Maji
- Department of Chemistry; Indira Gandhi National Tribal University; Anuppur Amarkantak Madhya Pradesh 484887 India
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27
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Gajaganti S, Bajpai S, Srivastava V, Singh S. An efficient, room temperature, oxygen radical anion (O2•−) mediated, one-pot, and multicomponent synthesis of spirooxindoles. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0432] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present report highlights an efficient use of oxygen radical anion to promote a room temperature multi-component synthesis of spirooxindoles (4a–4l) under mild reaction conditions. The potassium superoxide (KO2) and tetraethylammonium bromide (TEAB) combination generate the oxygen radical anion in situ to promote this transformation. This method offers a sustainable and direct access to the biologically important spirooxindole derivatives in good to excellent yields.
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Affiliation(s)
- Somaiah Gajaganti
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Shivam Bajpai
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Vandana Srivastava
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
- Department of Chemistry, Indian Institute of Technology — BHU, Varanasi 221 005, Uttar Pradesh, India
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28
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Recent Advances in the Synthesis of Spiroheterocycles via N-Heterocyclic Carbene Organocatalysis. Molecules 2017; 22:molecules22111882. [PMID: 29117098 PMCID: PMC6150278 DOI: 10.3390/molecules22111882] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 10/30/2017] [Indexed: 12/01/2022] Open
Abstract
Spiroheterocycles are regarded as a privileged framework because of their wide distribution in various natural products and synthetic molecules and promising bioactivities. This review focuses on the recent advances in the synthesis of spiroheterocycles by using the strategy of N-heterocyclic carbene (NHC) organocatalysis, and is organized based on the stereoselectivity and the reactive intermediates. According to the stereochemistry, this review was divided into two main parts, covering racemic and enantioselective versions. In each part, we firstly describe the synthetic transformations using nucleophilic Breslow intermediates, and then discuss the reactions that employ electrophilic acylazolium or radical cation intermediates. With those distinct catalytic activation modes of NHC organocatlysis, we expect this synthetic protocol will possibly produce new molecules with structural novelty and complexity, which may warrant further research in the field of drug discovery.
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29
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Wang L, Li S, Blümel M, Puttreddy R, Peuronen A, Rissanen K, Enders D. Switchable Access to Different Spirocyclopentane Oxindoles by N-Heterocyclic Carbene Catalyzed Reactions of Isatin-Derived Enals and N-Sulfonyl Ketimines. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704210] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Lei Wang
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
- The Institute of Medicinal Plant Development; Chinese Academy of Medical Sciences & Peking Union Medical College; Beijing 100199 China
| | - Sun Li
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Marcus Blümel
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
| | - Rakesh Puttreddy
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Anssi Peuronen
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Kari Rissanen
- Department of Chemistry; Nanoscience Center; University of Jyvaskyla; 40014 JYU Finland
| | - Dieter Enders
- Institute of Organic Chemistry; RWTH Aachen University; Landoltweg 1 52074 Aachen Germany
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30
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Switchable Access to Different Spirocyclopentane Oxindoles by N-Heterocyclic Carbene Catalyzed Reactions of Isatin-Derived Enals and N-Sulfonyl Ketimines. Angew Chem Int Ed Engl 2017; 56:8516-8521. [DOI: 10.1002/anie.201704210] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 12/23/2022]
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31
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Ren JW, Wang J, Xiao JA, Li J, Xiang HY, Chen XQ, Yang H. L-Pyroglutamic Sulphonamide as Hydrogen-Bonding Organocatalyst: Enantioselective Diels–Alder Cyclization to Construct Carbazolespirooxindoles. J Org Chem 2017; 82:6441-6449. [DOI: 10.1021/acs.joc.7b00733] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ji-Wei Ren
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jing Wang
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jun-An Xiao
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Jun Li
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Xiao-Qing Chen
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
| | - Hua Yang
- College of Chemistry and
Chemical Engineering, Central South University, Changsha 410083, P. R. China
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32
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Chennapuram M, Subba Reddy UV, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Nitro-Aldol Reaction of Nitromethane with Isatins. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Madhu Chennapuram
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - U. V. Subba Reddy
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8558 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Tokiwakai Group; 62 Numajiri, Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering; Graduate School of Engineering; Muroran Institute of Technology; 27-1 Mizumoto 050-8585 Muroran Japan
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33
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Zhang JQ, Li NK, Yin SJ, Sun BB, Fan WT, Wang XW. Chiral N-Heterocyclic Carbene-Catalyzed Asymmetric Michael-Intramolecular Aldol-Lactonization Cascade for Enantioselective Construction of β-Propiolactone-Fused Spiro[cyclopentane-oxindoles]. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601259] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Nai-Kai Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Shao-Jie Yin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Bing-Bing Sun
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Wei-Tai Fan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 People's Republic of China
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34
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Li JS, Chen GQ, Yang Q, Li ZW, Liu CZ, Huang PM. Copper powder-catalyzed chelation-assisted cascade reaction of o-chloroarylacetic acids with amines under solvent- and ligand-free conditions: synthesis of oxindoles. RSC Adv 2017. [DOI: 10.1039/c7ra08123e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Copper powder-catalyzed sequential C–Cl amination/intramolecular N-acylation under solvent- and ligand-free conditions is developed to access oxindoles.
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Affiliation(s)
- Jiang-Sheng Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Guo-Qin Chen
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Qian Yang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Zhi-Wei Li
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Ci-Zhi Liu
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
| | - Peng-Mian Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- School of Chemistry and Biological Engineering
- Changsha University of Science & Technology
- Changsha 410114
- P. R. China
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35
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Yao H, Zhou Y, Chen X, Zhang P, Xu J, Liu H. N-Heterocyclic Carbene Catalytic [4 + 2] Cyclization of 3-Alkylenyloxindoles with Enals: γ-Carbon Activation for Enantioselective Assembly of Spirocarbocyclic Oxindoles. J Org Chem 2016; 81:8888-8899. [DOI: 10.1021/acs.joc.6b01596] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hong Yao
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu 210009, P. R. China
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
| | - Yu Zhou
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
| | - Xia Chen
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu 210009, P. R. China
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
| | - Pengfei Zhang
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu 210009, P. R. China
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
| | - Jinyi Xu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu 210009, P. R. China
| | - Hong Liu
- State
Key Laboratory of Natural Medicines and Department of Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing, Jiangsu 210009, P. R. China
- Key
Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, P. R. China
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36
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Zhang JQ, Qi ZH, Yin SJ, Li HY, Wang Y, Wang XW. Brønsted or Lewis Acid Initiated Multicomponent Cascade Reaction: Diastereoselective Synthesis of Imidazolidinyl Spirooxindole Derivatives. ChemCatChem 2016. [DOI: 10.1002/cctc.201600560] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jun-Qi Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Zheng-Hang Qi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Shao-Jie Yin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Hai-Yan Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Yong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
| | - Xing-Wang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science; Soochow University; Suzhou 215123 P.R. China
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37
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Cheng D, Ling F, Zheng C, Ma C. Tuning of Copper-Catalyzed Multicomponent Reactions toward 3-Functionalized Oxindoles. Org Lett 2016; 18:2435-8. [DOI: 10.1021/acs.orglett.6b00964] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Cheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
- School
of Chemistry and Materials Engineering, Chaohu University, Chaohu 238000, China
| | - Fei Ling
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Chenguang Zheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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38
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Huang H, Bihani M, Zhao JCG. Stereoselective synthesis of spirooxindole derivatives using an organocatalyzed tandem Michael–Michael reaction. Org Biomol Chem 2016; 14:1755-63. [DOI: 10.1039/c5ob02348c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly efficient and stereoselective method for the synthesis of functionalized spirooxindole derivatives was realized using enamine catalysis.
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Affiliation(s)
- Huicai Huang
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
| | - Manisha Bihani
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
| | - John C.-G. Zhao
- Department of Chemistry
- University of Texas at San Antonio
- San Antonio
- USA
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39
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Kumari P, Nandi S, Kumar G, Khan NH, Kureshy RI, Abdi SHR, Suresh E, Bajaj HC. Construction of highly enantioselective spiro-oxindole derivatives with fused chromene via organocascade catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra06812j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A first highly enantioselective addition of naphthols and sesamol to indolylidene cyanoacetate derived from isatins was carried out in the presence of bi-functional quinine thiourea as organocatalyst.
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Affiliation(s)
- Prathibha Kumari
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sekhar Nandi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Gaurav Kumar
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Noorul H. Khan
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
| | - E. Suresh
- Academy of Scientific & Innovative Research (AcSIR)
- India
- Analytical Division and Centralized Instrument Facility
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
| | - Hari C. Bajaj
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI)
- Bhavnagar
- India
- Academy of Scientific & Innovative Research (AcSIR)
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40
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Bao X, Wang B, Cui L, Zhu G, He Y, Qu J, Song Y. An Organocatalytic Asymmetric Friedel–Crafts Addition/Fluorination Sequence: Construction of Oxindole–Pyrazolone Conjugates Bearing Vicinal Tetrasubstituted Stereocenters. Org Lett 2015; 17:5168-71. [DOI: 10.1021/acs.orglett.5b02470] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiaoze Bao
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Baomin Wang
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Longchen Cui
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Guodong Zhu
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yuli He
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jingping Qu
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yuming Song
- State Key Laboratory of Fine
Chemicals, School of Pharmaceutical Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China
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41
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Douglas JJ, Churchill G, Slawin AMZ, Fox DJ, Smith AD. Stereo- and Chemodivergent NHC-Promoted Functionalisation of Arylalkylketenes with Chloral. Chemistry 2015; 21:16354-8. [PMID: 26406613 PMCID: PMC4648049 DOI: 10.1002/chem.201503308] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Indexed: 12/16/2022]
Abstract
Stereo- and chemodivergent enantioselective reaction pathways are observed upon treatment of alkylarylketenes and trichloroacetaldehyde (chloral) with N-heterocyclic carbenes, giving selectively either β-lactones (up to 88:12 dr, up to 94 % ee) or α-chloroesters (up to 94 % ee). Either 2-arylsubstitution or an α-branched iPr alkyl substituent within the ketene favours the chlorination pathway, allowing chloral to be used as an electrophilic chlorinating reagent in asymmetric catalysis.
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Affiliation(s)
- James J Douglas
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST (UK) http://ch-www.st-andrews.ac.uk/staff/ads/group/,Current Address: Small Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285 (USA)
| | - Gwydion Churchill
- AstraZeneca, Pharmaceutical Development, Macclesfield, Cheshire, SK10 2NA (UK)
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST (UK) http://ch-www.st-andrews.ac.uk/staff/ads/group/
| | - David J Fox
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV7 4AL (UK).
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST (UK) http://ch-www.st-andrews.ac.uk/staff/ads/group/.
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42
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Flanigan DM, Romanov-Michailidis F, White NA, Rovis T. Organocatalytic Reactions Enabled by N-Heterocyclic Carbenes. Chem Rev 2015; 115:9307-87. [PMID: 25992594 PMCID: PMC4986729 DOI: 10.1021/acs.chemrev.5b00060] [Citation(s) in RCA: 1395] [Impact Index Per Article: 155.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Darrin M Flanigan
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | | | - Nicholas A White
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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43
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Organocatalytic Enantioselective Synthesis of Polysubstituted Spirooxindoles using a Tandem Michael-Michael Reaction. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500298] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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44
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Liu J, Tian Y, Shi J, Zhang S, Cai Q. An Enantioselective Synthesis of Spirobilactams through Copper-Catalyzed Intramolecular Double N-Arylation and Phase Separation. Angew Chem Int Ed Engl 2015; 54:10917-20. [PMID: 26228798 DOI: 10.1002/anie.201504589] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Indexed: 12/19/2022]
Abstract
Spirobicyclic structures are versatile building blocks for functional chiral molecules. An enantioselective synthesis of chiral spirobilactams via a copper-catalyzed double N-arylation was developed. Amplification of solution ee by in situ precipitation of the racemate was observed with this method and enantioenriched spirobilactams were obtained with excellent ee values through simple solid-solution phase separation.
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Affiliation(s)
- Jianguang Liu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)
| | - Yingying Tian
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)
| | - Jialing Shi
- College of Chemistry and Chemical Engineering, Hunan Normal University, No. 36 Lushan Road, Changsha, 410081 (China)
| | - Shasha Zhang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China)
| | - Qian Cai
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, No.190 Kaiyuan Avenue, Guangzhou Science Park, Guangzhou, 510530 (China).
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45
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Liu J, Tian Y, Shi J, Zhang S, Cai Q. An Enantioselective Synthesis of Spirobilactams through Copper-Catalyzed Intramolecular Double N-Arylation and Phase Separation. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201504589] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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46
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Alcaide B, Almendros P, Luna A, Soriano E. An Alternative to Precious Metals: Hg(ClO4)2·3H2O as a Cheap and Water-Tolerant Catalyst for the Cycloisomerization of Allenols. J Org Chem 2015; 80:7050-7. [PMID: 26079496 DOI: 10.1021/acs.joc.5b00887] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [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, CSIC, Juan de la Cierva 3, 28006 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
| | - Elena Soriano
- Instituto de Química Orgánica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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47
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Zhou P, Cai Y, Lin L, Lian X, Xia Y, Liu X, Feng X. Asymmetric Synthesis of Spirocyclic Oxindole-Fused Tetrahydrothiophenesvia N,N′-Dioxide-Nickel(II) Catalyzed Domino Reaction of 1,4-Dithiane-2,5-diol with 3-Alkenyloxindoles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400964] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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48
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Wang ZT, Zhao Y, Wang ZY, Cheng Y. N-Heterocyclic Carbene-Catalyzed Diastereoselective and Enantioselective Reaction of 2-Aroylvinylcinnamaldehydes with α,β-Unsaturated Imines: Complete Control and Switch of Diastereoselectivity by N-Substituents of Catalysts. J Org Chem 2015; 80:1727-34. [DOI: 10.1021/jo502668c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zi-Tian Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yuan Zhao
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zhan-Yong Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Ying Cheng
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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49
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Lin Y, Yang L, Deng Y, Zhong G. Cooperative catalysis of N-heterocyclic carbene and Brønsted acid for a highly enantioselective route to unprotected spiro-indoline-pyrans. Chem Commun (Camb) 2015; 51:8330-3. [DOI: 10.1039/c5cc02096d] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A chiral cooperative catalysis of NHC and Brønsted acid for a formal [4+2] reaction of unprotected isatins and enals was developed for the direct synthesis of unprotected spiro[indoline-3,2′-pyran]-2,6′(3′H)-diones in good to excellent yields (up to 95%) with high enantioselectivities (up to >93% ee).
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Affiliation(s)
- Youqiang Lin
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Limin Yang
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Yue Deng
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
| | - Guofu Zhong
- College of Materials
- Chemistry and Chemical Engineering
- Hangzhou Normal University
- Hangzhou 310018
- China
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50
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Liang ZQ, Gao ZH, Jia WQ, Ye S. Bifunctional N-Heterocyclic Carbene Catalyzed [3+4] Annulation of Enals and Aurones. Chemistry 2014; 21:1868-72. [DOI: 10.1002/chem.201405828] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Indexed: 12/25/2022]
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