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Javahershenas R, Makarem A, Klika KD. Recent advances in microwave-assisted multicomponent synthesis of spiro heterocycles. RSC Adv 2024; 14:5547-5565. [PMID: 38357035 PMCID: PMC10866134 DOI: 10.1039/d4ra00056k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024] Open
Abstract
Spiro heterocycle frameworks are a class of organic compounds that possesses unique structural features making them highly sought-after targets in drug discovery due to their diverse biological and pharmacological activities. Microwave-assisted organic synthesis has emerged as a powerful tool for assembling complex molecular architectures. The use of microwave irradiation in synthetic chemistry is a promising method for accelerating reaction rates and improving yields. This review provides insights into the current state of the art and highlights the potential of microwave-assisted multicomponent reactions in the synthesis of novel spiro heterocyclic compounds that were reported between 2017 and 2023.
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Affiliation(s)
- Ramin Javahershenas
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University Urmia Iran
| | - Ata Makarem
- Institute of Pharmacy, University of Hamburg 20146 Hamburg Germany
| | - Karel D Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ) 69120 Heidelberg Germany
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2
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Nguyen HT, Tuan AN, Thi TAD, Van KT, Le-Nhat-Thuy G, Thi PH, Thi QGN, Thi CB, Quang HT, Van Nguyen T. Synthesis, in vitro Α-Glucosidase, and acetylcholinesterase inhibitory activities of novel Indol-Fused Pyrano[2,3-D]Pyrimidine compounds. Bioorg Med Chem Lett 2024; 98:129566. [PMID: 38008338 DOI: 10.1016/j.bmcl.2023.129566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/07/2023] [Accepted: 11/22/2023] [Indexed: 11/28/2023]
Abstract
In this study, new indol-fused pyrano[2,3-d]pyrimidines were designed and synthesized. These products were obtained in moderate to good yields and their structures were assigned by NMR, MS, and IR analysis. Afterwards, the biological important of the products was highlighted by evaluating in vitro for α-glucosidase inhibitory activity as well as acetylcholinesterase (AChE) inhibitory activity. Eleven products revealed substantial inhibitory activity against α-glucosidase enzyme, among which, two most potent products 11d,e were approximately 93-fold more potent than acarbose as a standard antidiabetic drug. Besides that, product 11k exhibited good AChE inhibition. The substituents on the 5-phenyl ring, attached to the pyran ring, played a critical role in inhibitory activities. The biological potencies have provided an opportunity to further investigations of indol-fused pyrano[2,3-d]pyrimidines as potential anti-diabetic agents.
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Affiliation(s)
- Ha Thanh Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
| | - Anh Nguyen Tuan
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Tuyet Anh Dang Thi
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ket Tran Van
- Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Military Technology Academy, 236 Hoang Quoc Viet, Bac Tu Liem, Hanoi, Vietnam
| | - Giang Le-Nhat-Thuy
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phuong Hoang Thi
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Quynh Giang Nguyen Thi
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Cham Ba Thi
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hung Tran Quang
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Tuyen Van Nguyen
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam; Graduate University of Science and Technology, VAST, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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3
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Sanabria-Sánchez CM, Kouznetsov VV, Ochoa-Puentes C. Diastereoselective multicomponent synthesis of dihydroisoindolo[2,1- a]quinolin-11-ones mediated by eutectic solvents. RSC Adv 2023; 13:26189-26195. [PMID: 37671006 PMCID: PMC10475973 DOI: 10.1039/d3ra05561b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 08/27/2023] [Indexed: 09/07/2023] Open
Abstract
In this contribution, a series of dihydroisoindolo[2,1-a]quinolin-11-ones was synthesized by a one-pot multicomponent Povarov reaction starting from anilines, alkenes (trans-anethole, methyl eugenol and indene) and 2-formylbenzoic acid. Different eutectic solvents bearing Lewis or Brønsted acids were evaluated as reaction media and catalysts for the model reaction employing p-toluidine and trans-anethole finding that the eutectic mixture ChCl/ZnCl2 (1/2) allowed the obtention of the target compound in 77% isolated yield. Under the optimized reaction conditions, 20 derivatives were obtained in good to moderated yields using meta- and para-susbstituted anilines, while the corresponding ortho-analogs followed a different pathway affording isoindolinones. In addition, the eutectic mixture was reused in six cycles without observing a detrimental catalytic activity. This methodology features mild reaction conditions, short reaction time, simple work-up, and utilization of a reusable solvent; and provides straightforward and diastereoselective access to these alkaloid-like heterocyclic molecules.
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Affiliation(s)
- Carlos M Sanabria-Sánchez
- Laboratorio de Química Orgánica y Biomolecular, Escuela de Química, Universidad Industrial de Santander Cl. 9 # Cra 27 A.A. 680006 Bucaramanga Santander Colombia
- Laboratorio de Síntesis Orgánica Sostenible, Departamento de Química, Universidad Nacional de Colombia-Sede Bogotá Carrera 45 # 26-85 A.A. 5997 Bogotá Cundinamarca Colombia
| | - Vladimir V Kouznetsov
- Laboratorio de Química Orgánica y Biomolecular, Escuela de Química, Universidad Industrial de Santander Cl. 9 # Cra 27 A.A. 680006 Bucaramanga Santander Colombia
| | - Cristian Ochoa-Puentes
- Laboratorio de Síntesis Orgánica Sostenible, Departamento de Química, Universidad Nacional de Colombia-Sede Bogotá Carrera 45 # 26-85 A.A. 5997 Bogotá Cundinamarca Colombia
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4
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Noser AA, Baren MH, Ibrahim SA, Rekaby M, Salem MM. New Pyrazolothiazole as Potential Wnt/β‐Catenin Inhibitors: Green Synthesis, Characterization, Antimicrobial, Antioxidant, Antineoplastic Evaluation, and Molecular Docking Study. ChemistrySelect 2023. [DOI: 10.1002/slct.202204670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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5
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Omidi M, Mobinikhaledi A, Ahadi N. A Facile and Efficient Synthesis of Indole Derivatives in Aqueous Media Catalyzed by [DMAP-SO 3H]Cl and [DMAP-H]HSO 4. ORG PREP PROCED INT 2023. [DOI: 10.1080/00304948.2022.2162319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- Mahdi Omidi
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
| | - Akbar Mobinikhaledi
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
- Institute of Nanosciences and Nanotechnology, Arak University, Arak, Iran
| | - Najmieh Ahadi
- Department of Chemistry, Faculty of Science, Arak University, Arak, Iran
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6
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Microwave‐Assisted Multicomponent Synthesis of New 6‐Arylated 5‐Hydroxy‐benzo[
a
]phenazine Derivatives and Their Potential Anti‐inflammatory Activity. ChemistrySelect 2023. [DOI: 10.1002/slct.202204376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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7
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Pasumpon K, Mahendran V, Shanmugam S. Microwave‐Assisted Tandem Copper‐Catalyzed Three‐Component Reaction for Synthesis of 2‐Iminopyrans. ChemistrySelect 2022. [DOI: 10.1002/slct.202203659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Kamaraj Pasumpon
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
- Department of Chemistry Eurofins Advinus Biopharma Services India Pvt. Ltd Bangalore 560058
| | | | - Sivakumar Shanmugam
- Department of Organic Chemistry School of Chemistry Madurai Kamaraj University Madurai 625 021
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8
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Ratnani S, Mahilkar Sonkar S, Kumari R. Strategies for sustainable organic synthesis. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2022. [DOI: 10.1007/s13738-022-02687-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
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9
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Ibrahim SA, Salem MM, Elsalam HAA, Noser AA. Design, synthesis, in-silico and biological evaluation of novel 2-Amino-1,3,4-thiadiazole based hydrides as B-cell lymphoma-2 inhibitors with potential anticancer effects. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133673] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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10
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Koumpoura C, Nguyen M, Bijani C, Vendier L, Salina EG, Buroni S, Degiacomi G, Cojean S, Loiseau PM, Benoit-Vical F, García-Sosa AT, Baltas M. Design of Anti-infectious Agents from Lawsone in a Three-Component Reaction with Aldehydes and Isocyanides. ACS OMEGA 2022; 7:35635-35655. [PMID: 36249398 PMCID: PMC9558256 DOI: 10.1021/acsomega.2c03421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
The first effective synthetic approach to naphthofuroquinones via a reaction involving lawsone, various aldehydes, and three isocyanides under microwave irradiation afforded derivatives in moderate to good yields. In addition, for less-reactive aldehydes, two naphtho-enaminodione quinones were obtained for the first time, as result of condensation between lawsone and isocyanides. X-ray structure determination for 9 and 2D-NMR spectra of 28 confirmed the obtained structures. All compounds were evaluated for their anti-infectious activities against Plasmodium falciparum, Leishmania donovani, and Mycobacterium tuberculosis. Among the naphthofuroquinone series, 17 exhibited comparatively the best activity against P. falciparum (IC50 = 2.5 μM) and M. tuberculosis (MIC = 9 μM) with better (P. falciparum) or equivalent (M. tuberculosis) values to already-known naphthofuroquinone compounds. Among the two naphtho-enaminodione quinones, 28 exhibited a moderate activity against P. falciparum with a good selectivity index (SI > 36) while also a very high potency against L. donovani (IC50 = 3.5 μM and SI > 28), rendering it very competitive to the reference drug miltefosine. All compounds were studied through molecular modeling on their potential targets for P. falciparum, Pfbc1, and PfDHODH, where 17 showed the most favorable interactions.
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Affiliation(s)
- Christina
L. Koumpoura
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Michel Nguyen
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Christian Bijani
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Laure Vendier
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Elena G. Salina
- Bach
Institute of Biochemistry, Research Center
of Biotechnology of the Russian Academy of Sciences, Moscow 119071, Russia
| | - Silvia Buroni
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Giulia Degiacomi
- Department
of Biology and Biotechnology “Lazzaro Spallanzani”, University of Pavia, Pavia 27100, Italy
| | - Sandrine Cojean
- Antiparasite
Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University
Paris-Saclay, Châtenay-Malabry 92290, France
| | - Philippe M. Loiseau
- Antiparasite
Chemotherapy, UMR 8076 CNRS BioCIS, Faculty of Pharmacy, University
Paris-Saclay, Châtenay-Malabry 92290, France
| | - Françoise Benoit-Vical
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
| | - Alfonso T. García-Sosa
- Department
of Molecular Technology, Institute of Chemistry, University of Tartu, Ravila 14a, Tartu 50411, Estonia
| | - Michel Baltas
- Laboratoire
de Chimie de Coordination du CNRS−UPR8241, Inserm ERL 1289
Team “New antiplasmodial molecules and pharmacological approaches”, 205 route de Narbonne, BP 44099, Toulouse Cedex 31077, France
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11
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Arango-Daza JC, Lluna-Galán C, Izquierdo-Aranda L, Cabrero-Antonino JR, Adam R. Heterogeneous Pd-Catalyzed Efficient Synthesis of Imidazolones via Dehydrogenative Condensation between Ureas and 1,2-Diols. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01423] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Juan Camilo Arango-Daza
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Carles Lluna-Galán
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Luis Izquierdo-Aranda
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Jose R. Cabrero-Antonino
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
| | - Rosa Adam
- Instituto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Av. de los Naranjos s/n, 46022 València, Spain
- Departament de Química Orgànica, Facultat de Farmàcia, Universitat de València, Av. Vicent Andrés Estellés s/n, Burjassot, 46100 València, Spain
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12
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Polymer Processing under Microwaves. ADVANCES IN POLYMER TECHNOLOGY 2022. [DOI: 10.1155/2022/3961233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Over the last decades, microwave heating has experienced a great development and reached various domains of application, especially in material processing. In the field of polymers, this unusual source of energy showed important advantages arising from the direct microwave/matter interaction. Indeed, microwave heating allows regio-, chemio-, and stereo-selectivity, faster chemical reactions, and higher yields even in solvent-free processes. Thus, this heating mode provides a good alternative to the conventional heating by reducing time and energy consumption, hence reducing the costs and ecological impact of polymer chemistry and processing. This review states some achievements in the use of microwaves as energy source during the synthesis and transformation of polymers. Both in-solution and free-solvent processes are described at different scales, with comparison between microwave and conventional heating.
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13
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Karati D, Mahadik KR, Kumar D. Microwave assisted synthetic scheme of a novel Schiff base congeners of pyrimidine nuclei by using water as solvent: green approach of synthesis. CURRENT MICROWAVE CHEMISTRY 2022. [DOI: 10.2174/2213335609666220414141731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aim:
The research work aims to develop sustainable microwave-assisted scheme for the synthesis of 4-(benzylidene amino)-6-phenylpyrimidine-5-carbonitrile congeners.
Background:
4-(benzylidene amino)-6-phenylpyrimidine-5-carbonitrile scaffolds are novel molecules having various pharmacological activities such as neurodegenerative, anti-microbial, anti-cancer. Schiff base congeners are considered as efficient pharmacophores for research. These activities are due to the presence of azomethine (CH=N) group in the Schiff base compounds.
Objectives:
To synthesise different novel Schiff base scaffolds of pyrimidine nuclei by green chemistry with good yield.
Methods:
The 4-(benzylidene amino)-6-phenylpyrimidine-5-carbonitrile scaffolds were prepared by two step reactions. Both steps were microwave assisted. The first step was to synthesize 4-amino-6-phenylpyrimidine-5-carbonitrile as intermediate compound. This compound was synthesized by using benzaldehyde, malononitrile and formamidine hydrochloride. The reaction conditions are as following:
temperature- 1010C, pressure- 300W, time- 50min.
The final Schiff base congeners were obtained by reacting it with various aromatic aldehydes in the second step. The yield, reaction condition, and time consumption all were very acceptable for the green synthetic methods rather than the conventional schemes.
Results:
Microwave assisted method was more efficient. The reactions were less time consuming and the overall yield of the all-synthesized compounds was in the range of 72-81%. The synthesized congeners were characterized by different spectroscopic methods. The main functional group [azomethine] was considered by the IR peak at 1611 cm-1 wavelength.
Conclusions:
This microwave assisted synthetic method thus emerges as more eco-friendly due to a much-reduced usage of organic solvents, leading to less harmful residues. Using this scheme, we synthesized different Schiff base congeners with satisfactory chemical yields.
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Affiliation(s)
- Dipanjan Karati
- Poona College of Pharmacy, Department of Pharmaceutical Chemistry, Bharati Vidyapeeth (Deemed to be University) Erandwane, Pune- 411038, Maharashtra, India
| | - Kakasaheb Ramoo. Mahadik
- Poona College of Pharmacy, Department of Pharmaceutical Chemistry, Bharati Vidyapeeth (Deemed to be University) Erandwane, Pune- 411038, Maharashtra, India
| | - Dileep Kumar
- Poona College of Pharmacy, Department of Pharmaceutical Chemistry, Bharati Vidyapeeth (Deemed to be University) Erandwane, Pune- 411038, Maharashtra, India
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Martinho LA, Andrade CKZ. A greener approach for the synthesis of pyrido[2,3‐
d
]pyrimidine derivatives in glycerol under microwave heating. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Luan A. Martinho
- Instituto de Química, Laboratório de Química Metodológica e Orgânica Sintética (LaQMOS), Universidade de Brasília
| | - Carlos Kleber Z. Andrade
- Instituto de Química, Laboratório de Química Metodológica e Orgânica Sintética (LaQMOS), Universidade de Brasília
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Macías-Benítez P, Sierra-Padilla A, J Tenorio M, Moreno-Dorado FJ, Guerra FM. Copper-Catalyzed Microwave-Expedited Oxyphosphorylation of Alkynes with Diethyl Phosphite and t-Butyl Hydroperoxide Synthesis of Densely Functionalized Phosphonylated Indenones. J Org Chem 2021; 86:16409-16424. [PMID: 34709823 DOI: 10.1021/acs.joc.1c01763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Treatment of alkynes with diethyl phosphite and t-butyl hydroperoxide in the presence of [Cu(MeCN)4]BF4 under microwave irradiation produced the oxyphosphorylation of the triple bond, giving rise to the corresponding β-ketophosphonates in moderate-to-good yields. When the triple bond was conjugated to a carbonyl group bearing an aromatic ring, it led to the cyclization of the resulting ketone intermediate, producing eventually different phosphonylated indenones.
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Affiliation(s)
- Pablo Macías-Benítez
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Alfonso Sierra-Padilla
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Manuel J Tenorio
- Departamento de Ciencia de Materiales e Ingeniería Metalúrgica y Química Inorgánica and Instituto de Biomoléculas, Universidad de Cadiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - F Javier Moreno-Dorado
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
| | - Francisco M Guerra
- Departamento de Química Orgánica and Instituto de Biomoléculas, Universidad de Cádiz, Polígono Río San Pedro s/n, Puerto Real 11510, Cádiz, Spain
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