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Tuncel ST, Demir I, Erdem SS, Dogan I. Stable hemiaminals from axially chiral pyridine compounds. Chirality 2023; 35:365-375. [PMID: 36762682 DOI: 10.1002/chir.23545] [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: 08/12/2022] [Revised: 01/19/2023] [Accepted: 01/29/2023] [Indexed: 02/11/2023]
Abstract
In this study, we have synthesized a series of 3-(pyridin-2-yl)-2-(pyridin-2-ylimino)thiazolidin-4-ol derivatives regioselectively from 2-iminothiazolidin-4-ones using LiAlH4 at room temperature. Due to the presence of the restricted rotation around the N3-Caryl single bond, the formation of M/P isomers was observed. The OH group of the hemiaminal was found to orient itself on the same side with pyridyl nitrogen during this restricted rotation to form an intramolecular hydrogen bond, which was demonstrated by the computational DFT study. This orientation presumably inhibited the occurrence of dehydration and stabilized the molecule.
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Affiliation(s)
| | - Ilke Demir
- Department of Chemistry, Marmara University, Istanbul, Turkey
| | | | - Ilknur Dogan
- Department of Chemistry, Bogazici University, Istanbul, Turkey
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2
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Peng X, Rahim A, Peng W, Jiang F, Gu Z, Wen S. Recent Progress in Cyclic Aryliodonium Chemistry: Syntheses and Applications. Chem Rev 2023; 123:1364-1416. [PMID: 36649301 PMCID: PMC9951228 DOI: 10.1021/acs.chemrev.2c00591] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Indexed: 01/18/2023]
Abstract
Hypervalent aryliodoumiums are intensively investigated as arylating agents. They are excellent surrogates to aryl halides, and moreover they exhibit better reactivity, which allows the corresponding arylation reactions to be performed under mild conditions. In the past decades, acyclic aryliodoniums are widely explored as arylation agents. However, the unmet need for acyclic aryliodoniums is the improvement of their notoriously low reaction economy because the coproduced aryl iodides during the arylation are often wasted. Cyclic aryliodoniums have their intrinsic advantage in terms of reaction economy, and they have started to receive considerable attention due to their valuable synthetic applications to initiate cascade reactions, which can enable the construction of complex structures, including polycycles with potential pharmaceutical and functional properties. Here, we are summarizing the recent advances made in the research field of cyclic aryliodoniums, including the nascent design of aryliodonium species and their synthetic applications. First, the general preparation of typical diphenyl iodoniums is described, followed by the construction of heterocyclic iodoniums and monoaryl iodoniums. Then, the initiated arylations coupled with subsequent domino reactions are summarized to construct polycycles. Meanwhile, the advances in cyclic aryliodoniums for building biaryls including axial atropisomers are discussed in a systematic manner. Finally, a very recent advance of cyclic aryliodoniums employed as halogen-bonding organocatalysts is described.
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Affiliation(s)
- Xiaopeng Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
| | - Abdur Rahim
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Weijie Peng
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Feng Jiang
- College
of Pharmacy, Key Laboratory of Prevention and Treatment of Cardiovascular
and Cerebrovascular Diseases, Ministry of Education, Jiangxi Province
Key Laboratory of Biomaterials and Biofabrication for Tissue Engineering, Gannan Medical University, Ganzhou341000, P.R. China
| | - Zhenhua Gu
- Department
of Chemistry, University of Science and
Technology of China, 96 Jinzhai Road, Hefei230026, P. R. China
| | - Shijun Wen
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, 651 Dongfeng East Road, Guangzhou510060, P. R. China
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3
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Dagoneau D, Quinodoz P, Kolleth A, Bozoflou M, Horoz B, Catak S, Poisson PA, Lumbroso A, Sulzer-Mossé S, De Mesmaeker A. A Short and Versatile Approach for the Synthesis of Pyrrolizidinones. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dylan Dagoneau
- Syngenta Crop Protection AG Crop Protection Research, Research Chemistry Schaffhauserstrasse 101 4332 Stein SWITZERLAND
| | - Pierre Quinodoz
- Syngenta Crop Protection AG Research Chemistry Stein SWITZERLAND
| | - Amandine Kolleth
- Syngenta Crop Protection AG Research Chemistry Stein SWITZERLAND
| | - Mert Bozoflou
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | - Beyza Horoz
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | - Saron Catak
- Bogazici Universitesi Department of Chemistry Bebek 34342 Istanbul TURKEY
| | | | | | | | - Alain De Mesmaeker
- Syngenta Crop Protection AG Crop Protection Research, Research Chemistry Schaffhauserstrasse 101 4332 Stein SWITZERLAND
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4
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Sarigul Ozbek S, Dogan I. Axially chiral hemiaminals from nonracemic α-amino acid derivatives (thiohydantoins): Synthesis and isomer identification. Chirality 2020; 32:1299-1310. [PMID: 32770589 DOI: 10.1002/chir.23274] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/10/2020] [Accepted: 07/21/2020] [Indexed: 11/08/2022]
Abstract
Stable, nonracemic axially chiral hemiaminals (O,N-hemiacetals) have been synthesized stereoselectively from lithium aluminum hydride (LiAlH4 ) reductions of nonracemic 5-methyl- and 5-isopropyl-3-(o-aryl)-2-thioydantoins in tetrahydrofuran (THF) at room temperature in 10 min. Predominantly S-configured hemiaminals at C-4 of the heterocyclic ring were produced from the S-configured thiohydantoins at C-5 (by 80% when the C5 substituent is methyl and by 97% when it is isopropyl). The configuration at C-5 was retained during the reduction reaction. The stereochemical outcome of the axially chiral hemiaminals resulted from their conformational preferences.
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Affiliation(s)
- Sevgi Sarigul Ozbek
- Faculty of Pharmacy, Acıbadem Mehmet Ali Aydınlar University, İstanbul, Turkey
| | - Ilknur Dogan
- Department of Chemistry, Boğziçi University, İstanbul, Turkey
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5
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Haslak ZP, Agopcan Cinar S, Sarigul Ozbek S, Monard G, Dogan I, Aviyente V. Elucidation of the atroposelectivity in the synthesis of axially chiral thiohydantoin derivatives. Org Biomol Chem 2020; 18:2233-2241. [PMID: 32022073 DOI: 10.1039/c9ob02556a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, Sarigul and Dogan have synthesized a number of enantiomerically enriched axially chiral atropoisomeric 2-thiohydantoins by the reaction of l-amino acid ester salts and o-aryl isothiocyanates in the presence of triethyl amine (TEA) in dichloromethane. The non-axially chiral derivative 5-methyl-3-phenyl-2-thiohydantoin gave a racemic product whereas the axially chiral 5-methyl-3-o-bromophenyl-2-thiohydantoin was less prone to racemize at C5 of the heterocyclic ring. In this study, we present a computational study (M06-2X/6-311+G(d,p) for C, H, O, N and S; M06-2X/6-311++G(3df,3pd) for Br) in order to propose plausible mechanisms for the racemization and cyclization steps for 2-thiohydantoin derivatives. The study includes rationalization based on steric as well as the electrostatic effects to elucidate the epimerization differences at C5.
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Affiliation(s)
- Zeynep Pinar Haslak
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, 34342, Turkey. and Université de Lorraine, CNRS, LPCT, F-54000 Nancy, France and Faculty of Science and Letters, Piri Reis University, Tuzla, Istanbul, 34940, Turkey
| | - Sesil Agopcan Cinar
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, 34342, Turkey.
| | - Sevgi Sarigul Ozbek
- Faculty of Pharmacy, Acibadem Mehmet Ali Aydinlar University, Atasehir, Istanbul, 34752, Turkey
| | - Gérald Monard
- Université de Lorraine, CNRS, LPCT, F-54000 Nancy, France
| | - Ilknur Dogan
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, 34342, Turkey.
| | - Viktorya Aviyente
- Department of Chemistry, Bogaziçi University, Bebek, Istanbul, 34342, Turkey.
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6
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7
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Gunal SE, Gurses GS, Erdem SS, Dogan I. Synthesis of stable tetrahedral intermediates (hemiaminals) and kinetics of their conversion to thiazol-2-imines. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.003] [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]
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8
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Karakus N, Demirel M. The trans–cis and the azide–tetrazole ring-chain isomerization of 2-azido-1,3-azoles: Quantum chemical study. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.03.041] [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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9
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Guasch L, Sitzmann M, Nicklaus MC. Enumeration of ring-chain tautomers based on SMIRKS rules. J Chem Inf Model 2014; 54:2423-32. [PMID: 25158156 PMCID: PMC4170818 DOI: 10.1021/ci500363p] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A compound
exhibits (prototropic) tautomerism if it can be represented by two
or more structures that are related by a formal intramolecular movement
of a hydrogen atom from one heavy atom position to another. When the
movement of the proton is accompanied by the opening or closing of
a ring it is called ring–chain tautomerism. This type of tautomerism
is well observed in carbohydrates, but it also occurs in other molecules
such as warfarin. In this work, we present an approach that allows
for the generation of all ring–chain tautomers of a given chemical
structure. Based on Baldwin’s Rules estimating the likelihood
of ring closure reactions to occur, we have defined a set of transform
rules covering the majority of ring–chain tautomerism cases.
The rules automatically detect substructures in a given compound that
can undergo a ring–chain tautomeric transformation. Each transformation
is encoded in SMIRKS line notation. All work was implemented in the
chemoinformatics toolkit CACTVS. We report on the application of our
ring–chain tautomerism rules to a large database of commercially
available screening samples in order to identify ring–chain
tautomers.
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Affiliation(s)
- Laura Guasch
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Frederick National Laboratory for Cancer Research , Frederick, Maryland 21702, United States
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Lumbroso A, Catak S, Sulzer-Mossé S, De Mesmaeker A. Cycloaddition of keteniminium with terminal alkynes toward cyclobuteniminium and their use in Diels–Alder reactions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.059] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Agopcan Cinar S, Ercan S, Erol Gunal S, Dogan I, Aviyente V. The origin of exo-stereoselectivity of norbornene in hetero Diels–Alder reactions. Org Biomol Chem 2014; 12:8079-86. [DOI: 10.1039/c4ob01217h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Najahi E, Vanthuyne N, Nepveu F, Jean M, Alkorta I, Elguero J, Roussel C. Atropisomerization in N-aryl-2(1H)-pyrimidin-(thi)ones: A Ring-Opening/Rotation/Ring-Closure Process in Place of a Classical Rotation around the Pivot Bond. J Org Chem 2013; 78:12577-84. [DOI: 10.1021/jo402149f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ennaji Najahi
- Université de Toulouse, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
- IRD, UMR 152, 31062 Toulouse cedex 9, France
| | - Nicolas Vanthuyne
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
| | - Françoise Nepveu
- Université de Toulouse, UPS, PHARMA-DEV, UMR 152, 118 Route de Narbonne, 31062 Toulouse cedex 9, France
- IRD, UMR 152, 31062 Toulouse cedex 9, France
| | - Marion Jean
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
| | - Ibon Alkorta
- Instituto de Quimica Medica (IQM-CSIC), Juan de
la Cierva, 3, 28006 Madrid, Spain
| | - José Elguero
- Instituto de Quimica Medica (IQM-CSIC), Juan de
la Cierva, 3, 28006 Madrid, Spain
| | - Christian Roussel
- Aix Marseille Université, Centrale Marseille, CNRS,
iSm2 UMR 7313, 13397, Marseille, France
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13
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Menges N, Sari O, Abdullayev Y, Erdem SS, Balci M. Design and synthesis of pyrrolotriazepine derivatives: an experimental and computational study. J Org Chem 2013; 78:5184-95. [PMID: 23647431 DOI: 10.1021/jo4001228] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pyrrole derivatives having carbonyl groups at the C-2 position were converted to N-propargyl pyrroles. The reaction of those compounds with hydrazine monohydrate resulted in the formation of 5H-pyrrolo[2,1-d][1,2,5]triazepine derivatives. The synthesis of these compounds was accomplished in three steps starting from pyrrole. On the other hand, attempted cyclization of a pyrrole ester substituted with a propargyl group at the nitrogen atom gave, unexpectedly, the six-membered cyclization product, 2-amino-3-methylpyrrolo[1,2-a]pyrazin-1(2H)-one as the major product. The expected cyclization product with a seven-membered ring, 4-methyl-2,3-dihydro-1H-pyrrolo[2,1-d][1,2,5]triazepin-1-one was formed as the minor product and was converted quantitatively to the major product. The formation mechanism of the products was investigated, and the results obtained were also supported by theoretical calculations.
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Affiliation(s)
- Nurettin Menges
- Department of Chemistry, Middle East Technical University, 06800 Ankara, Turkey
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