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Mhasni O, Bouajila J, Rezgui F. Metal catalyst-free N-allylation/alkylation of imidazole and benzimidazole with Morita-Baylis-Hillman (MBH) alcohols and acetates. Beilstein J Org Chem 2023; 19:1251-1258. [PMID: 37674521 PMCID: PMC10477972 DOI: 10.3762/bjoc.19.93] [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: 05/23/2023] [Accepted: 08/24/2023] [Indexed: 09/08/2023] Open
Abstract
A highly α-regioselective N-nucleophilic allylic substitution of cyclic MBH alcohols and acetates with imidazole or benzimidazole, in toluene at reflux with an azeotropic distillation, was successfully carried out with no catalysts or additives, affording the corresponding N-substituted imidazole derivatives in good yields. On the other hand, in refluxing toluene or methanol, the aza-Michael addition of imidazole onto acyclic MBH alcohols was performed using DABCO as an additive, leading to the corresponding 1,4-adducts in 70-84% yields.
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Affiliation(s)
- Olfa Mhasni
- Laboratory of Materials, Treatement and Analysis LMTA, LR 15 INRAP 03, National Institute of Research and Physico-Chemical Analysis (INRAP), Biotechpôle Sidi Thabet 2020, Tunisia
| | - Jalloul Bouajila
- Paul Sabatier University, Toulouse 3, Laboratoire de Génie Chimique UMR 5503 Toulouse, France
| | - Farhat Rezgui
- University of Tunis El Manar, Laboratory of Organic Chemistry, Faculty of Sciences, Campus, 2092 Tunis, Tunisia
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2
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Ghobadi M, Pourmoghaddam Qhazvini P, Kazemi M. Catalytic application of zinc (II) bromide (ZnBr 2) in organic synthesis. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1811873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Massoud Ghobadi
- Central Laboratory, Ilam Petro Chemical Coomplex (ILPC), Chavar, Iran
| | | | - Mosstafa Kazemi
- Young Researchers and Elite Club, Ilam Branch, Islamic Azad University, Ilam, Iran
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3
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Yokoo K, Mori K. Expeditious Synthesis of Multisubstituted Quinolinone Derivatives Based on Ring Recombination Strategy. Org Lett 2020; 22:244-248. [PMID: 31834806 DOI: 10.1021/acs.orglett.9b04224] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We achieved a concise construction of 3-substituted quinolinone derivatives based on a ring recombination strategy. In this process, seven transformations involving two types of cyclization proceeded in one pot to afford various quinolinone derivatives in good to excellent chemical yields (up to 98%).
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Affiliation(s)
- Kazuma Yokoo
- Department of Applied Chemistry , Graduate School of Engineering, Tokyo University of Agriculture and Technology , 2-24-16 Nakacho , Koganei , Tokyo 184-8588 , Japan
| | - Keiji Mori
- Department of Applied Chemistry , Graduate School of Engineering, Tokyo University of Agriculture and Technology , 2-24-16 Nakacho , Koganei , Tokyo 184-8588 , Japan
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4
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Reaction of aryne with aza-Morita–Baylis–Hillman adducts: Synthesis of 4-quinolones and N -arylation products. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2016.09.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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5
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Lakshmi Narayana Sharma K, Suresh Kumar C, Kumaraswamy S, Krishna Reddy V, Kameswara Rao N, Raghu Babu K, Ramakrishna G. Palladium-catalyzed domino sequence for the synthesis of N-aryl quinolinone-3-carboxylate derivatives and their anti-proliferative activity. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Cheng YC, Chen YY, Chuang CP. Cobalt salt-catalyzed carbocyclization reactions of α-bromo-N-phenylacetamide derivatives. Org Biomol Chem 2017; 15:2020-2032. [DOI: 10.1039/c7ob00009j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A Co(ii)-catalyzed carbocyclization reaction for the synthesis of 4-substituted quinolin-2-(1H)-ones is described.
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Affiliation(s)
- Yi-Chen Cheng
- Department of Chemistry
- National Cheng Kung University
- Tainan
- Republic of China
| | - Ying-Yu Chen
- Department of Chemistry
- National Cheng Kung University
- Tainan
- Republic of China
| | - Che-Ping Chuang
- Department of Chemistry
- National Cheng Kung University
- Tainan
- Republic of China
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7
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Chuang CP, Chen YJ. Manganese(III) acetate mediated oxidative radical cyclizations of α-substituted N-[2-(phenylethynyl)phenyl]acetamides. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Moon HR, Kim SY, Lim JW, Kim JN. An Expedient Synthesis of Pyrrolo[3,2,1-ij]quinoline-1,2-diones via Intramolecular Friedel-Crafts Cyclization Protocol. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hye Ran Moon
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Su Yeon Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jin Woo Lim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 Korea
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9
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Lin GA, Chuang CP. Manganese(III) acetate mediated oxidative radical cyclizations of α-substituted N-[(E)-stilben-2-yl]acetamides. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.05.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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10
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Pięta M, Kędzia J, Janecka A, Pomorska DK, Różalski M, Krajewska U, Janecki T. Novel synthesis and cytotoxic activity of 1,4-disubstituted 3-methylidene-3,4-dihydroquinolin-2(1H)-ones. RSC Adv 2015. [DOI: 10.1039/c5ra16673j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
1,4-Disubstituted 3-methylidene-3,4-dihydroquinolin-2(1H)-ones were efficiently synthesized using a Horner–Wadsworth–Emmons approach and their cytotoxic activity was evaluated.
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Affiliation(s)
- Marlena Pięta
- Institute of Organic Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
| | - Jacek Kędzia
- Institute of Organic Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
| | - Anna Janecka
- Department of Biomolecular Chemistry
- Medical University of Łódź
- 92-215 Łódź
- Poland
| | - Dorota K. Pomorska
- Department of Biomolecular Chemistry
- Medical University of Łódź
- 92-215 Łódź
- Poland
| | - Marek Różalski
- Department of Pharmacutical Biochemistry
- Medical University of Łódź
- 90-151 Łódź
- Poland
| | - Urszula Krajewska
- Department of Pharmacutical Biochemistry
- Medical University of Łódź
- 90-151 Łódź
- Poland
| | - Tomasz Janecki
- Institute of Organic Chemistry
- Lodz University of Technology
- 90-924 Łódź
- Poland
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12
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Eshghi H, Hassankhani A. Phosphorus pentoxide supported on silica gel and alumina (P2O5/SiO2, P2O5/Al2O3) as useful catalysts in organic synthesis. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-011-0057-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Wang Y, Liu L, Wang D, Chen YJ. Palladium-catalyzed α-regioselective allylic amination of Morita–Baylis–Hillman acetates with simple aromatic amines. Org Biomol Chem 2012; 10:6908-13. [DOI: 10.1039/c2ob25976a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Direct one-pot introduction of 2-methylpyridines to Baylis–Hillman adducts via base-mediated 3-aza-Cope rearrangement. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Kim KH, Kim SH, Lee KY, Kim JN. Regioselective Synthesis of Fluorenones via the Consecutive In-Mediated Barbier Reaction, Pd-Catalyzed Cyclization, and Friedel-Crafts Reaction Starting from Baylis-Hillman Adducts. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.4.1387] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Park BR, Kim SH, Kim YM, Kim JN. Synthesis of indenoindene-fused α-methylene-γ-butyrolactones via a tandem intra- and intermolecular Friedel–Crafts reaction. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.01.153] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Zhong W, Liu Y, Wang G, Hong L, Chen Y, Chen X, Zheng Y, Zhang W, Ma W, Shen Y, Yao Y. Recent Advances in Construction of Nitrogen-containing Heterocycles from Baylis-Hillman Adducts. ORG PREP PROCED INT 2011. [DOI: 10.1080/00304948.2011.549065] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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18
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Wu C, Zeng H, Liu L, Wang D, Chen Y. Tandem allylic amination/ring-opening/oxa-Michael addition reactions of chromone-derived Morita–Baylis–Hillman acetates with amines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.11.089] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Wu C, Liu Y, Zeng H, Liu L, Wang D, Chen Y. In(iii)-Catalyzed tandem reaction of chromone-derived Morita–Baylis–Hillman alcohols with amines. Org Biomol Chem 2011; 9:253-6. [PMID: 21049104 DOI: 10.1039/c0ob00604a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Chen Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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20
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Basavaiah D, Reddy BS, Badsara SS. Recent contributions from the Baylis-Hillman reaction to organic chemistry. Chem Rev 2010; 110:5447-674. [PMID: 20735052 DOI: 10.1021/cr900291g] [Citation(s) in RCA: 743] [Impact Index Per Article: 53.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Deevi Basavaiah
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, India.
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21
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Ge SQ, Hua YY, Xia M. Accelerated Amination of Baylis–Hillman Acetates Under Ultrasound Irradiation. SYNTHETIC COMMUN 2010. [DOI: 10.1080/00397910903219310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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22
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Mechanism and synthesis of pharmacologically active quinolones from Morita–Baylis–Hillman adducts. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.018] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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23
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Basavaiah D, Devendar B, Aravindu K, Veerendhar A. A Facile One-Pot Transformation of Baylis-Hillman Adducts into Unsymmetrical Disubstituted Maleimide and Maleic Anhydride Frameworks: A Facile Synthesis of Himanimide A. Chemistry 2010; 16:2031-5. [DOI: 10.1002/chem.200902887] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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24
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Zulykama Y, Uma U, Devi PC, Perumal PT. Chemo- and regio-selective functionalization of Morita–Baylis–Hillman bromides with anthranilic acid. CAN J CHEM 2009. [DOI: 10.1139/v09-128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nucleophilic substitution products of Morita–Baylis–Hillman adducts and their derivatives are valuable synthons. In an attempt to ameliorate the functionality of these functionalized motifs, we report the regio- and chemo-selective functionalization of Morita–Baylis–Hillman bromides with anthranilic acid.
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Affiliation(s)
- Yusuf Zulykama
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai-20, India
| | - Ulagamani Uma
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai-20, India
| | - Palanisamy Chitra Devi
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai-20, India
| | - Paramasivan T. Perumal
- Organic Chemistry Division, Central Leather Research Institute, Adyar, Chennai-20, India
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25
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Zhang SJ, Cui HL, Jiang K, Li R, Ding ZY, Chen YC. Enantioselective Allylic Amination of Morita-Baylis-Hillman Carbonates Catalysed by Modified Cinchona Alkaloids. European J Org Chem 2009. [DOI: 10.1002/ejoc.200900944] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Ge SQ, Hua YY, Xia M. Ultrasound-promoted access to Baylis-Hillman amines. ULTRASONICS SONOCHEMISTRY 2009; 16:743-746. [PMID: 19342285 DOI: 10.1016/j.ultsonch.2009.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Revised: 02/04/2009] [Accepted: 02/16/2009] [Indexed: 05/27/2023]
Abstract
It is surveyed that the amination of the Baylis-Hillman acetates with primary amines can be dramatically promoted in improved yields and shortened reaction time under ultrasound irradiation than those under conventional stirring. The extensive scope of both amines and acetates are screened to investigate the relationship between substituents and their performance in such transformation.
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Affiliation(s)
- Shao-Qin Ge
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, PR China
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27
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Ramesh C, Kavala V, Raju BR, Kuo CW, Yao CF. Novel synthesis of indolylquinoline derivatives via the C-alkylation of Baylis–Hillman adducts. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.04.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Arfaoui A, Amri H. An effective new access to ethyl 2-[(alkylamino)(cyano)methyl] acrylates: first synthesis of ethyl 3-cyano-2-(hydroxymethyl) acrylate. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.04.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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29
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A highly α-regioselective In(OTf)3-catalyzed N-nucleophilic substitution of cyclic Baylis–Hillman adducts with aromatic amines. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.02.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Synthesis of 3,4-disubstituted 2(1H)-quinolinones via intramolecular Friedel–Crafts reaction of N-arylamides of Baylis–Hillman adducts. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.01.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Affiliation(s)
- Valérie Declerck
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-Universités Montpellier 1 et 2, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-Universités Montpellier 1 et 2, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Frédéric Lamaty
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247 CNRS-Universités Montpellier 1 et 2, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
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32
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Synthesis of β-Aryl Substituted N-Tosyl Aza-Baylis-Hillman Adducts: Heck Reaction of N-Tosyl Aza-Baylis-Hillman Adducts. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.8.1583] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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33
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Singh V, Batra S. Advances in the Baylis–Hillman reaction-assisted synthesis of cyclic frameworks. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.02.087] [Citation(s) in RCA: 403] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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34
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Kim SH, Kim KH, Kim HS, Kim JN. Regioselective synthesis of 1,2,4,5-tetrasubstituted pyridines from Baylis–Hillman adducts via consecutive [3+2+1] annulation protocol. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.01.110] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Gowrisankar S, Lee HS, Kim JM, Kim JN. Pd-mediated synthesis of 2-arylquinolines and tetrahydropyridines from modified Baylis–Hillman adducts. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.12.133] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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37
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Synthesis of β,γ-Disubstituted α-Methylene-γ-butyrolactams Starting from the Baylis-Hillman Adducts. B KOREAN CHEM SOC 2007. [DOI: 10.5012/bkcs.2007.28.1.143] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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38
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Trifluoroacetic acid: a more effective and efficient reagent for the synthesis of 3-arylmethylene-3,4-dihydro-1H-quinolin-2-ones and 3-arylmethyl-2-amino-quinolines from Baylis–Hillman derivatives via Claisen rearrangement. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.10.053] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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39
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Zulykama Y, Perumal PT. Functionalization of Baylis - Hillman Bromides with Symmetric and Asymmetric Bifunctional Aromatics. Aust J Chem 2007. [DOI: 10.1071/ch06342] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Nucleophilic substitution products of Baylis–Hillman adducts are valuable synthons. In an attempt to improve the functionality of Baylis–Hillman adducts we report the regio- and chemo-selective fuctionalization of Baylis–Hillman bromides with symmetric and asymmetric bifunctional aromatics.
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40
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Madapa S, Singh V, Batra S. An alternate approach to quinoline architecture via Baylis–Hillman chemistry: SnCl2-mediated tandem reaction toward synthesis of 4-(substituted vinyl)-quinolines. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.06.098] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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41
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Lee KY, Gowrisankar S, Lee YJ, Kim JN. Synthesis of 2-amino-2,3-dihydrobenzofurans and fully substituted furans from modified Baylis–Hillman adducts. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.06.093] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Synthesis of 3-Aryl-3-hydroxypyrrolidin-2-ones and 2-Benzyl-9b-hydroxy-3,3a,5,9b-tetrahydro-2H-pyrrolo[3,4-c]quinoline-1,4-dione Derivatives from the Baylis-Hillman Adducts of Isatins. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.8.1133] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Lee KY, Seo J, Kim JN. Serendipitous synthesis of 2-amino-2,3-dihydrobenzofuran derivatives starting from Baylis–Hillman adducts. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.167] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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44
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Kim SC, Gowrisankar S, Kim JN. Synthesis of 3-aryl-3-hydroxypyrrolidin-2-ones and 2-benzyl-9b-hydroxy-3,3a,5,9b-tetrahydro-2H-pyrrolo[3,4-c]quinoline-1,4-dione derivatives from the Baylis–Hillman adducts of isatins. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.03.074] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Synthesis of 3,4-Disubstituted Pyridines Starting from Baylis-Hillman Adducts Using Schweizer Reaction. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.3.439] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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46
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Lee MJ, Lee KY, Park DY, Kim JN. Regioselective synthesis of polysubstituted benzenes from Baylis–Hillman adducts via [4+2] annulation protocol. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.01.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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47
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Lee MJ, Park DY, Lee KY, Kim JN. Base-catalyzed domino reaction toward 3-benzylidenecyclohexenes: DBU-promoted sequential Michael, aldol, dehydration, and dealkoxycarbonylation. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.12.134] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Synthesis of Cyclopropane Derivatives Starting from the Baylis-Hillman Adducts Using Sulfur Ylide Chemistry. B KOREAN CHEM SOC 2006. [DOI: 10.5012/bkcs.2006.27.2.319] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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49
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Lee MJ, Lee KY, Gowrisankar S, Kim JN. Regioselective construction of polysubstituted benzene ring from Baylis–Hillman adduct via [4+2] annulation strategy. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.12.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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50
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Park DY, Lee MJ, Kim TH, Kim JN. Regioselective construction of polysubstituted pyridine ring from Baylis–Hillman adducts via sequential introduction of tosylamide, Michael reaction, aldol condensation, and elimination of TsH. Tetrahedron Lett 2005. [DOI: 10.1016/j.tetlet.2005.10.034] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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