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Verdhi LK, Fridman N, Szpilman AM. Copper- and Chiral Nitroxide-Catalyzed Oxidative Kinetic Resolution of Axially Chiral N-Arylpyrroles. Org Lett 2022; 24:5078-5083. [PMID: 35798692 DOI: 10.1021/acs.orglett.2c01860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A readily prepared C2-symmetric, α-hydrogen-substituted chiral hydroxylamine serves as a precatalyst to generate a chiral nitroxide in situ. This chiral nitroxide catalyst in combination with a copper co-catalyst functions as an oxidant for an unprecedented enantioselective oxidative kinetic resolution (OKR) of racemic axially chiral N-arylpyrrole alcohols using atmospheric oxygen as an environmentally friendly terminal oxidant. The OKR process provides the axially chiral N-arylpyrroles in er up to 3.5:96.5 and with s factors up to 24.
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Affiliation(s)
- Lenin Kumar Verdhi
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 3200009, Israel
| | - Alex M Szpilman
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
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2
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Sattari Alamdar S, Foroughifar N, Shahi M, Balali E. Synthesis, Biological Activitiy and DFT Study of New Azaphenalene Derivatives. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2089700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Somayeh Sattari Alamdar
- Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Department of Organic Chemistry, Islamic Azad University, Tehran, Iran
| | - Naser Foroughifar
- Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Department of Organic Chemistry, Islamic Azad University, Tehran, Iran
| | - Masoumeh Shahi
- Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Department of Organic Chemistry, Islamic Azad University, Tehran, Iran
| | - Ebrahim Balali
- Faculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Department of Organic Chemistry, Islamic Azad University, Tehran, Iran
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Design and synthesis of some new biologically active amidoalkyl naphthols in the presence of sulfonic acid functionalized silica-coated Fe3O4 nanoparticles. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04610-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Zagranyarska I, Kostova K, Zagranyarski Y, Nikolova R, Shivachev B, Dimitrov V. Estrone derived 2-naphthol analogue in the diastereoselective one-pot Betti-condensation. Mol Divers 2019; 24:1343-1353. [PMID: 31602565 DOI: 10.1007/s11030-019-09998-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 09/30/2019] [Indexed: 11/29/2022]
Abstract
The utility of deoxy-isoequilenine synthesized from estrone as valuable 2-naphthol analogue is demonstrated in the three components Betti-condensation. A simple, efficient and green procedure for the synthesis of aminobenzylnaphthol analogues (so-called Betti bases) has been realized highly diastereoselectively by using (S)-phenylethylamine and 1- or 2-naphthaldehyde. The absolute configuration of the new chiral compounds obtained has been determined by means of NMR experiments and confirmed by X-ray crystallography. The chiral steroidal aminobenzylnaphthols have been evaluated as pre-catalysts for the addition of diethylzinc to aldehydes with enantioselectivities of up to 98% ee.
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Affiliation(s)
- Irena Zagranyarska
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev 9, 1113, Sofia, Bulgaria
| | - Kalina Kostova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev 9, 1113, Sofia, Bulgaria
| | - Yulian Zagranyarski
- Faculty of Chemistry and Pharmacy, Sofia University "St. Kliment Ohridski", 1 James Bourchier Blvd., 1164, Sofia, Bulgaria
| | - Rositsa Nikolova
- Institute of Mineralogy and Crystallography "Acad. Ivan Kostov", Bulgarian Academy of Sciences, Acad. G. Bonchev 107, 1113, Sofia, Bulgaria
| | - Boris Shivachev
- Institute of Mineralogy and Crystallography "Acad. Ivan Kostov", Bulgarian Academy of Sciences, Acad. G. Bonchev 107, 1113, Sofia, Bulgaria
| | - Vladimir Dimitrov
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev 9, 1113, Sofia, Bulgaria.
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Olyaei A, Sadeghpour M. Recent advances in the synthesis and synthetic applications of Betti base (aminoalkylnaphthol) and bis-Betti base derivatives. RSC Adv 2019; 9:18467-18497. [PMID: 35515249 PMCID: PMC9064815 DOI: 10.1039/c9ra02813g] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 02/14/2020] [Accepted: 05/30/2019] [Indexed: 11/21/2022] Open
Abstract
The multicomponent reaction between 2-naphthol, arylaldehydes and ammonia yields aminobenzylnaphthols in a process known as the Betti reaction, which was first uncovered at the beginning of the 20th century. Various methods have been reported for the synthesis of aminobenzylnaphthol (Betti base) and bis-Betti base derivatives using various types of naphthols, aromatic amines, heteroaromatic amines, and aliphatic and cyclic amines instead of ammonia or diamines and aliphatic and aromatic aldehydes or dialdehyde compounds under various conditions in recent years. The Betti reaction produces racemic and non-racemic aminobenzylnaphthol ligands. It is also clear that the most important area of application of the non-racemic aminonaphthols prepared in this manner is their use in asymmetric synthesis, either as chiral ligands or as chiral auxiliaries. The functional groups in these Mannich products offer many ring closure possibilities. Some of these products or the starting bifunctional compounds possess biological activity. Herein, we present a selection of the relevant studies on this topic.
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Affiliation(s)
- Abolfazl Olyaei
- Department of Chemistry, Payame Noor University (PNU) PO Box 19395-4697 Tehran Iran
| | - Mahdieh Sadeghpour
- Department of Chemistry, Takestan Branch, Islamic Azad University Takestan Iran
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Dikova K, Kostova K, Simova S, Linden A, Chimov A, Dimitrov V. Synthesis and crystal structures of chiral ferrocene and ruthenocene substituted aminomethylnaphthols obtained through Betti-condensation. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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7
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Eftekhari A, Foroughifar N, Hekmati M, Khobi M. Fe
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‐arginine magnetic nanoparticles: A novel and magnetically retrievable catalyst for the synthesis of 1′3‐diaryl‐2N‐azaphenalene. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Asghar Eftekhari
- Department of Organic ChemistryFaculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Naser Foroughifar
- Department of Chemistry, Tehran North BranchIslamic Azad University Tehran Islamic Republic of Iran
| | - Malak Hekmati
- Department of Organic ChemistryFaculty of Pharmaceutical Chemistry, Tehran Medical Sciences, Islamic Azad University Tehran Iran
| | - Mahdi Khobi
- Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research CenterTehran University of Medical Sciences Tehran Islamic Republic of Iran
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Toledo H, Amar M, Bar S, Iron MA, Fridman N, Tumanskii B, Shimon LJW, Botoshansky M, Szpilman AM. Synthesis and stability of cyclic α-hydrogen nitroxides. Org Biomol Chem 2015; 13:10726-33. [PMID: 26356203 DOI: 10.1039/c5ob01443c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Nitroxides (nitroxyl radicals) hold a unique place in science due to their stable radical nature. We have recently reported the first design concept providing a general solution to the problem of designing and preparing monocyclic α-hydrogen nitroxides. The initial studies were limited to aryl derivatives. We now report a wider study showing that alkyl substituents may be employed as well. In addition, we report several additional examples of aryl substituents and reveal some of the structural limitations with regard to nitroxide stability as a function of the α-carbon substituent.
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Affiliation(s)
- Hila Toledo
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Michal Amar
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Sukanta Bar
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Mark A Iron
- Department of Chemical Research Support, Weizmann Institute of Science, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Boris Tumanskii
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Linda J W Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Israel
| | - Mark Botoshansky
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
| | - Alex M Szpilman
- Schulich Faculty of Chemistry, Technion - Israel Institute of Technology, Israel.
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Amar M, Bar S, Iron MA, Toledo H, Tumanskii B, Shimon LJ, Botoshansky M, Fridman N, Szpilman AM. Design concept for α-hydrogen-substituted nitroxides. Nat Commun 2015; 6:6070. [DOI: 10.1038/ncomms7070] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2014] [Accepted: 12/09/2014] [Indexed: 12/12/2022] Open
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Mobinikhaledi A, Foroughifar N, Moghanian H, Mozaffari R. Convenient one-pot synthesis of N-acyl-1,3-diaryl-2-azaphenalene derivatives via solvent-free five-component condensation reactions. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1758-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Szatmári I, Fülöp F. Syntheses, transformations and applications of aminonaphthol derivatives prepared via modified Mannich reactions. Tetrahedron 2013. [DOI: 10.1016/j.tet.2012.11.055] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Foroughifar N, Mobinikhaledi A, Moghanian H, Mozafari R, Esfahani HRM. Ammonium Chloride–Catalyzed One-Pot Synthesis of Tetrahydrobenzo[α]xanthen-11-one Derivatives Under Solvent-Free Conditions. SYNTHETIC COMMUN 2011. [DOI: 10.1080/00397911.2010.515340] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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