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Maddahi M, Asghari S, Pasha GF. A facile one-pot green synthesis of novel 2-amino-4H-chromenes: antibacterial and antioxidant evaluation. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04893-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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2
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Synthesis, characterization and catalytic evaluation of ZrCl4:Mg(ClO4)2 for the synthesis of 1,3-diaryl-3-(phenylthio)propan-1-one. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101359] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Han J, Zhang JL, Zhang WQ, Gao Z, Xu LW, Jian Y. “On Water” Catalytic Aldol Reaction between Isatins and Acetophenones: Interfacial Hydrogen Bonding and Enamine Mechanism. J Org Chem 2019; 84:7642-7651. [DOI: 10.1021/acs.joc.9b00441] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jinsong Han
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Jin-Lei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Wei-Qiang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
| | - Li-Wen Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou 310012, P. R. China
| | - Yajun Jian
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710062, P. R. China
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Fallek A, Portnoy M. The Use of Lewis Acids for Repairing Chemoselectivity of the Organocatalyzed Morita‐Baylis‐Hillman Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201900157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amit Fallek
- School of ChemistryRaymond and Beverly Sackler Faculty of Exact SciencesTel Aviv University Tel Aviv 699678 Israel
| | - Moshe Portnoy
- School of ChemistryRaymond and Beverly Sackler Faculty of Exact SciencesTel Aviv University Tel Aviv 699678 Israel
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Mojtahedi MM, Darvishi K, Abaee MS, Halvagar MR. Synthesis and fluorescence studies of novel bisarylmethylidene derivatives of 2-methoxy-2-methyl-1,3-dioxan-5-one. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0099] [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
The first general procedure is described for the synthesis of novel bisarylmethylidenes of 2-methoxy-2-methyl-1,3-dioxan-5-one 1. Thus, several derivatives of 3 are obtained rapidly in high yields by reacting 1 with different aldehydes in the presence of catalytic quantities of pyrrolidine in EtOH at room temperature. Upon completion of the reactions, products are obtained directly by spontaneous precipitation avoiding time consuming and expensive chromatographic separations. All products were characterized by proton and carbon NMR spectroscopy methods, and in one case, the proposed structure was elucidated by X-ray crystallography, confirming the Z stereochemistry for the olefinic C=C bonds. Due to showing different colours in solid and solution states, products were studied for their photophysical properties as well.
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Affiliation(s)
- Mohammad M. Mojtahedi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
| | - Kiana Darvishi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
| | - M. Saeed Abaee
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
| | - Mohammad R. Halvagar
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Pajohesh Blvrd., 17th km of Tehran-Karaj Highway, P.O. Box 14335-186, Tehran, Iran
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Karabline-Kuks J, Ramesh P, Portnoy M. Chemoselectivity ImprovementviaPartial Shielding of an Imidazole Active Site in Branched/Dendritic Homogeneous Catalysts of the Baylis-Hillman Reaction. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600421] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jeny Karabline-Kuks
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 699678 Israel
| | - Palakuri Ramesh
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 699678 Israel
| | - Moshe Portnoy
- School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences; Tel Aviv University; Tel Aviv 699678 Israel
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8
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Abaee MS, Mohammadi M, Mojtahedi MM, Halvagar MR. Synthesis and Diels–Alder reactions of novel styrylcyclohexenol dienes: a general pathway for the synthesis of tricyclic lactone and octahydronaphthalene systems. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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9
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Pourabdi L, Osati F, Mojtahedi MM, Abaee SM. A convenient one-pot synthesis of thiopyrano[4,3-b]pyran derivatives under LiOH·H2O/EtOH/ultrasonic conditions. J Sulphur Chem 2016. [DOI: 10.1080/17415993.2016.1223299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ladan Pourabdi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Fatemeh Osati
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Mohammad M. Mojtahedi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Saeed M. Abaee
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
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Abaee MS, Forghani S, Mojtahedi MM, Harms K. Facile one-pot synthesis of novel dicyanoanilines fused to tetrahydro-4H-thiopyran-4-one ring via Et3N/H2O catalyzed pseudo four-component reaction. J Sulphur Chem 2016. [DOI: 10.1080/17415993.2016.1182170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- M. Saeed Abaee
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Soodabeh Forghani
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Mohammad M. Mojtahedi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Klaus Harms
- Fachbereich Chemie der Philipps-Universitaet Marburg, Marburg, Germany
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Abaee MS, Mohammadi M, Mohammadi A, Mojtahedi MM, Rezaei MT, Saberi F, Harms K. Sequential Diels–Alder Reactions in a Conjugated Tetraene System. JOURNAL OF CHEMICAL RESEARCH 2016. [DOI: 10.3184/174751916x14567530340542] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A sequence of two Diels–Alder reactions is observed for the reaction of bis-diene ( E)-3-[2-(furan-2-yl)vinyl]-5,5-dimethylcyclohex-2-en-1-one with two equivalents of N-phenylmaleimide. This study shows that the electron-deficient furanyl site, which is primarily “inactive” towards a [4 + 2] reaction, easily undergoes cycloaddition with the second equivalent of N-phenylmaleimide to produce the final bis-adduct. This is because the first Diels–Alder reaction between N-phenylmaleimide and the more reactive cyclohex-2-en-1-one site of the diene converts the 2-furanyl ring to a more electron-rich component, since the electron-withdrawing double bond attached to the furan ring changes to an electron-releasing alkyl group after the first cycloaddition. Consequently, the resulting furanyl diene is then able to undergo the second cycloaddition.
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Affiliation(s)
- M. Saeed Abaee
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Mohadeseh Mohammadi
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Akram Mohammadi
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Mohammad M. Mojtahedi
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - M. Taghi Rezaei
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Farveh Saberi
- Department of Organic Chemistry, Chemistry and Chemical Engineering Research Centre of Iran, P.O. Box 14335-186, Tehran, Iran
| | - Klaus Harms
- Fachbereich Chemie der Philipps-Universitaet Marburg, Hans-Meerwein-Strasse, D-35032 Marburg, Germany
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12
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Mojtahedi MM, Pourabdi L, Abaee MS, Jami H, Dini M, Halvagar MR. Facile one-pot synthesis of novel ortho-aminocarbonitriles and dicyanoanilines fused to heterocycles via pseudo four-component reactions. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Abaee MS, Mahmoudi F, Forghani S, Mojtahedi MM, Harms K. Efficient synthesis of novel bis(arylmethylidenes) of the 2,2-dimethyl-1,3-dithian-5-one system. J Sulphur Chem 2016. [DOI: 10.1080/17415993.2015.1130131] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M. Saeed Abaee
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Fereshteh Mahmoudi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Soodabeh Forghani
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Mohammad M. Mojtahedi
- Department of Organic Chemistry and Natural Products, Chemistry and Chemical Engineering Research Center of Iran, Tehran, Iran
| | - Klaus Harms
- Fachbereich Chemie der, Philipps-Universitaet Marburg, Marburg, Germany
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An Investigation of the Enolization and Isomeric Products Distribution in the Water Promoted Aldol Reaction of Tropinone and Granatanone. J CHEM-NY 2016. [DOI: 10.1155/2016/4674901] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The exo,anti/exo,syn-diastereoselectivity of water promoted direct aldol reactions of tropinone and granatanone (pseudopelletierine) is strongly dependent on the amount of water added and aromatic aldehyde used. DFT methods were applied to calculate the free energies of tropinone and granatanone enols, transition states, and isomeric aldol products. A theoretical model was verified by comparison of results from several DFT methods and functionals with experiments. The 6-31g(d)/CPCM method proved most suited to the problem, although all methods tested predicted similar trends. Explicit inclusion of a water molecule bonded to the amino ketones resulted in increased stability of the enol forms. The dependence of the anti/syn-diastereoselectivity on the amount of water used may be rationalized on the basis of change in the polarity of the reaction medium. The predicted stabilities of competing products agreed with experimental results supporting the notion of thermodynamic control. The isomeric products distributions for the aldol reaction of several aromatic aldehydes in solventless (neat) conditions were accurately calculated from free energies of the aldol addition step in the gas phase using B3LYP/6-31g(d) method and in aqueous conditions using the CPCM-B3LYP/6-31g(d) model. Our methodology can be useful for predicting the outcome of this type of aldol reactions.
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Liu J, Ma S. Iron-catalyzed aerobic oxidation of allylic alcohols: the issue of C═C bond isomerization. Org Lett 2013; 15:5150-3. [PMID: 24099324 DOI: 10.1021/ol402434x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An aerobic oxidation of allylic alcohols using Fe(NO3)3·9H2O/TEMPO/NaCl as catalysts under atmospheric pressure of oxygen at room temperature was developed. This eco-friendly and mild protocol provides a convenient pathway to the synthesis of stereodefined α,β-unsaturated enals or enones with the retention of the C-C double-bond configuration.
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Affiliation(s)
- Jinxian Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University , 3663 North Zhongshan Lu, Shanghai 200062, P. R. China , College of Chemistry and Materials Science, Longyan University , Longyan 364000, P. R. China , and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 354 Fenglin Lu, Shanghai 200032, P. R. China
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Mojtahedi MM, Abaee MS, Samianifard M, Shamloo A, Padyab M, Mesbah AW, Harms K. Ultrasound mediation for efficient synthesis of monoarylidene derivatives of homo- and heterocyclic ketones. ULTRASONICS SONOCHEMISTRY 2013; 20:924-930. [PMID: 23219616 DOI: 10.1016/j.ultsonch.2012.11.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 11/05/2012] [Accepted: 11/06/2012] [Indexed: 06/01/2023]
Abstract
Ultrasonic irradiation was efficiently used for high yield synthesis of monoarylidene derivatives of cyclic systems directly from the reaction of ketone with various aldehydes under solvent-free conditions. Reactions took place rapidly in the presence of catalytic amounts of pyrrolidine, while no significant formation of the undesired bis by-products was observed. Moreover, the procedure was applicable to both homo- and heterocyclic ketones.
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Bhajiwala HM, Patil HR, Gupta V. Studies of amino acids for inhibition of aldol condensation and dissolution of polymeric product of aldehyde in alkaline media. APPLIED PETROCHEMICAL RESEARCH 2013. [DOI: 10.1007/s13203-013-0025-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Zakrzewski J. Reactions of nitroxides XIII: Synthesis of the Morita-Baylis-Hillman adducts bearing a nitroxyl moiety using 4-acryloyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl as a starting compound, and DABCO and quinuclidine as catalysts. Beilstein J Org Chem 2012; 8:1515-22. [PMID: 23019486 PMCID: PMC3458776 DOI: 10.3762/bjoc.8.171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 08/03/2012] [Indexed: 11/23/2022] Open
Abstract
The Morita-Baylis-Hillman adducts bearing a nitroxyl moiety were synthesized from 4-acryloyloxy-2,2,6,6-tetramethylpiperidine-1-oxyl and aliphatic, aryl and heterocyclic aldehydes.
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Affiliation(s)
- Jerzy Zakrzewski
- Institute of Industrial Organic Chemistry, Annopol 6, 03-236 Warsaw, Poland
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Abaee MS, Cheraghi S, Navidipoor S, Mojtahedi MM, Forghani S. An efficient tandem aldol condensation-thia-Michael addition process. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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