1
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Zheng H, Han Y, Sun J, Yan CG. Tri( n-butyl)phosphine-promoted domino reaction for the efficient construction of spiro[cyclohexane-1,3'-indolines] and spiro[indoline-3,2'-furan-3',3''-indolines]. Beilstein J Org Chem 2022; 18:669-679. [PMID: 35821699 PMCID: PMC9235906 DOI: 10.3762/bjoc.18.68] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/02/2022] [Indexed: 01/15/2023] Open
Abstract
The tri(n-butyl)phosphine-catalyzed reaction of isatylidene malononitriles and bis-chalcones in chloroform at 65 °C afforded functionalized spiro[cyclohexane-1,3'-indolines] in good yields and with good diastereoselectivity. On the other hand, the tri(n-butyl)phosphine-catalyzed reaction of 3-(ethoxycarbonylmethylene)oxindoles and bis-chalcones gave functionalized spiro[cyclohexane-1,3'-indolines] with different regioselectivity. Additionally, the tri(n-butyl)phosphine-promoted domino annulation reaction of isatins and ethyl isatylidene cyanoacetates produced spiro[indoline-3,2'-furan-3',3''-indolines] in satisfactory yields.
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Affiliation(s)
- Hui Zheng
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ying Han
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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2
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Liu M, Zhou L, Shi W, Hu Y, Liao J, Duan Z, Wang W, Wu Y, Zheng B, Guo H. Phosphine-Catalyzed (4 + 2) Annulation of δ-Sulfonamido-Substituted Enones with 1,1-Dicyanoalkenes: Synthesis of Piperidine Derivatives. Org Lett 2021; 23:7703-7707. [PMID: 34605654 DOI: 10.1021/acs.orglett.1c02557] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The δ-sulfonamido-substituted enones were employed as phosphine acceptor in phosphine-catalyzed (4 + 2) annulation of 1,1-dicyanoalkenes. They served as a four-membered synthon to react with 1,1-dicyanoalkenes under mild reaction conditions, producing piperidine derivatives in moderate to excellent yields with good to excellent diastereoselectivities.
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Affiliation(s)
- Min Liu
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Leijie Zhou
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Wangyu Shi
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Yimin Hu
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Jianning Liao
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Zeqing Duan
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Wei Wang
- College of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou 450001, PR China
| | - Bing Zheng
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
| | - Hongchao Guo
- Department of Chemistry and Innovation Center of Pesticide Research, China Agricultural University, Beijing 100193, PR China
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3
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Li YQ, Xu GD, Huang ZZ. An organophosphorus-mediated cross-Rauhut-Currier/Wittig domino reaction for the efficient synthesis of trisubstituted cyclopentenes. Org Biomol Chem 2021; 19:2487-2491. [PMID: 33656503 DOI: 10.1039/d1ob00150g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient organophosphorus-mediated cross-Rauhut-Currier/Wittig domino reaction of vinyl ketones with chalcones has been developed for the synthesis of trisubstituted cyclopentenes. The new synthetic method has the advantages of mild reaction conditions, high efficiency, environmental friendliness and satisfactory yields.
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Affiliation(s)
- Ya-Qiong Li
- Department of Chemistry, Zhejiang University, Hangzhou 310058, P.R. China.
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4
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Li N, Huang Y. Phosphine-Catalyzed Sequential [3+3]/Aza-6π-Electrocyclization Reaction of Cross-Conjugated Azatrienes and δ-Sulfonamido-Allenoates. Org Lett 2020; 22:9392-9397. [PMID: 33231467 DOI: 10.1021/acs.orglett.0c03725] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An unprecedented sequential [3+3]/aza-6π-electrocyclization between cross-conjugated azatrienes and δ-sulfonamido-allenoates, catalyzed by phosphine, has been developed, which provides efficient and facile access to highly functionalized tetrahydroisoquinoline derivatives. The products can be easily transformed into (dihydro)isoquinolines and their fused polycyclic compounds. The reactivity of both azatrienes and δ-sulfonamido-allenoates in this text, acting as a five-atom unit, is unique in the phosphine-catalyzed annulations of allenoates.
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Affiliation(s)
- Ning Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - You Huang
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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5
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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6
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Xiao BX, Jiang B, Song X, Du W, Chen YC. Phosphine-catalysed asymmetric dearomative formal [4+2] cycloadditions of 3-benzofuranyl vinyl ketones. Chem Commun (Camb) 2019; 55:3097-3100. [PMID: 30789167 DOI: 10.1039/c9cc00386j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An asymmetric dearomative formal [4+2] cycloaddition reaction of 3-benzofuranyl vinyl ketones and 3-olefinic (7-aza)oxindoles is explored which is catalysed by chiral phosphines.
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Affiliation(s)
- Ben-Xian Xiao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Bo Jiang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xue Song
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Wei Du
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Ying-Chun Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Ministry of Education and Sichuan Research Center for Drug Precision Industrial Technology
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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7
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Abstract
The hallmark of nucleophilic phosphine catalysis is the initial nucleophilic addition of a phosphine to an electrophilic starting material, producing a reactive zwitterionic intermediate, generally under mild conditions. In this Review, we classify nucleophilic phosphine catalysis reactions in terms of their electrophilic components. In the majority of cases, these electrophiles possess carbon-carbon multiple bonds: alkenes (section 2), allenes (section 3), alkynes (section 4), and Morita-Baylis-Hillman (MBH) alcohol derivatives (MBHADs; section 5). Within each of these sections, the reactions are compiled based on the nature of the second starting material-nucleophiles, dinucleophiles, electrophiles, and electrophile-nucleophiles. Nucleophilic phosphine catalysis reactions that occur via the initial addition to starting materials that do not possess carbon-carbon multiple bonds are collated in section 6. Although not catalytic in the phosphine, the formation of ylides through the nucleophilic addition of phosphines to carbon-carbon multiple bond-containing compounds is intimately related to the catalysis and is discussed in section 7. Finally, section 8 compiles miscellaneous topics, including annulations of the Hüisgen zwitterion, phosphine-mediated reductions, iminophosphorane organocatalysis, and catalytic variants of classical phosphine oxide-generating reactions.
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Affiliation(s)
- Hongchao Guo
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yi Chiao Fan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
| | - Zhanhu Sun
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Yang Wu
- Department of Applied Chemistry, China Agricultural University, Beijing 100193, P. R. China
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, CA 90095-1569, USA
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8
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Chen P, Zhang J, Zhang J. Highly Substituted Cyclohexenes via Phosphine-Catalyzed [4+2] Annulation of Electron-deficient Dienes and Vinyl Ketones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701168] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Peng Chen
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemsitry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Junyou Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemsitry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemsitry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
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9
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Zhou R, Zhang K, Han L, Chen Y, Li R, He Z. Unusual Formal [1+4] Annulation through Tandem P(NMe2
)3
-Mediated Cyclopropanation/Base-Catalyzed Cyclopropane Rearrangement: Facile Syntheses of Cyclopentenimines and Cyclopentenones. Chemistry 2016; 22:5883-7. [DOI: 10.1002/chem.201505047] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Rong Zhou
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 P. R. China
| | - Kai Zhang
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 P. R. China
| | - Ling Han
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 P. R. China
| | - Yusong Chen
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 P. R. China
| | - Ruifeng Li
- College of Chemistry and Chemical Engineering; Taiyuan University of Technology; Taiyuan 030024 P. R. China
| | - Zhengjie He
- The State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 P. R. China
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10
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Zheng C, Wang HF, Chen WQ, Chen WX, Chen FE. Organocatalytic Asymmetric Vinylogous Michael Addition of 3-(2-Oxoindolin-3-ylidene)butanoates to Nitroalkenes Catalyzed by a Bifunctional Cinchona-Based Squaramide. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500111] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Chen Zheng
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Hai-Feng Wang
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Wei-Qi Chen
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Wen-Xue Chen
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
| | - Fen-Er Chen
- Department of Chemistry; Fudan University; 220 Handan Road Shanghai 200433 China
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11
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Sosnovskikh VY, Korotaev VY, Barkov AY, Kutyashev IB, Safrygin AV. One-Pot Domino Synthesis of Polyfunctionalized Benzophenones, Dihydroxanthones, andm-Terphenyls from 2-(Polyfluoroalkyl)chromones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403585] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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12
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Jang YJ, Chen YS, Lee CJ, Chen CH, Reddy GM, Ko CT, Lin W. Asymmetric Organocatalytic Synthesis of Highly Substituted Cyclohexenols by Domino Double-Michael Reactions of 1-Hydroxy-1,4-dien-3-ones and 2-Alkylidenemalononitriles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403677] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Chen R, Xu S, Fan X, Li H, Tang Y, He Z. Construction of dispirocyclohexanes via amine-catalyzed [2 + 2 + 2] annulations of Morita–Baylis–Hillman acetates with exocyclic alkenes. Org Biomol Chem 2015; 13:398-408. [DOI: 10.1039/c4ob01927j] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Divergent amine-catalyzed [2 + 2 + 2] annulations of Morita–Baylis–Hillman acetates with exocyclic alkenes were developed for the convergent construction of multistereogenic dispirocyclohexanes.
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Affiliation(s)
- Rongshun Chen
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
- P. R. China
| | - Silong Xu
- Department of Chemistry
- School of Science
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Xia Fan
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
- P. R. China
| | - Hanyuan Li
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
- P. R. China
| | - Yuhai Tang
- Department of Chemistry
- School of Science
- Xi'an Jiaotong University
- Xi'an 710049
- P. R. China
| | - Zhengjie He
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
- Tianjin 300071
- P. R. China
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14
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Zhou R, Yang C, Liu Y, Li R, He Z. Diastereoselective Synthesis of Functionalized Spirocyclopropyl Oxindoles via P(NMe2)3-Mediated Reductive Cyclopropanation. J Org Chem 2014; 79:10709-15. [DOI: 10.1021/jo502106c] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Rong Zhou
- College
of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Changjiang Yang
- The
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, P. R. China
| | - Yiyi Liu
- The
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, P. R. China
| | - Ruifeng Li
- College
of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China
| | - Zhengjie He
- The
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300071, P. R. China
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15
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Korotaev VY, Barkov AY, Kutyashev IB, Safrygin AV, Sosnovskikh VY. Synthesis of electron-deficient dienes bearing a chromonyl moiety via the reaction of 3-formylchromones with ylidenemalononitriles and ethyl α-cyano-β-methylcinnamate. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.03.105] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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16
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Hu FL, Wei Y, Shi M. Phosphine-Catalyzed Asymmetric Formal [4+2] Tandem Cyclization of Activated Dienes with Isatylidenemalononitriles: Enantioselective Synthesis of Multistereogenic Spirocyclic Oxindoles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301070] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Zhou R, Duan C, Yang C, He Z. Phosphane-Catalyzed [4+1] Annulation between Nitroalkenes and Morita-Baylis-Hillman Carbonates: Facile Synthesis of IsoxazolineN-Oxides by Phosphorus Ylides. Chem Asian J 2014; 9:1183-9. [DOI: 10.1002/asia.201301633] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Indexed: 12/31/2022]
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18
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Wen LR, Lan MC, Yuan WK, Li M. DABCO-mediated isocyanide-based multicomponent reaction: synthesis of highly substituted cyclopentenes. Org Biomol Chem 2014; 12:4628-32. [DOI: 10.1039/c4ob00012a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Highly substituted cyclopentenes can be accessed rapidly from isocyanides, aldehydes and malononitrile or ethyl cyanoacetate (AB2C2) using DABCO as a catalyst under solvent-free conditions at 40 °C within 30 min.
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Affiliation(s)
- Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042, P. R. China
| | - Ming-Chao Lan
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042, P. R. China
| | - Wen-Kui Yuan
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042, P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042, P. R. China
- State Key Laboratory of Institute of Elemento-organic Chemistry
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19
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Liu W, Zhao G. DABCO catalyzed cross-Rauhut-Currier/transesterification reactions of activated alkenes with phenyl acrylates: scope and mechanistic insight. Org Biomol Chem 2013; 12:832-5. [PMID: 24326624 DOI: 10.1039/c3ob41763h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
DABCO catalyzed the cross-Rauhut-Currier/transesterification reaction of α-cyano-α,β-unsaturated ketones and aryl acrylates was discovered. The reaction rate law was determined by an integral method under pseudo-first-order reaction conditions, which assisted in proposing the mechanism of cross-Rauhut-Currier reaction promoted by Brønsted acid and establishing the rate-determining step.
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Affiliation(s)
- Wen Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
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20
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21
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Xu LW. Powerful Amino Acid Derived Bifunctional Phosphine Catalysts Bearing a Hydrogen Bond Donor in Asymmetric Synthesis. ChemCatChem 2013. [DOI: 10.1002/cctc.201300198] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Dong X, Hui Y, Xie S, Zhang P, Zhou G, Xie Z. Schiff base supported MCM-41 catalyzed the Knoevenagel condensation in water. RSC Adv 2013. [DOI: 10.1039/c3ra00138e] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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