1
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Kelebekli L. Synthesis and hydrolysis of monocarbamate from allylic 1,4-dicarbamate: Bis-homodichloroinositol. Carbohydr Res 2022; 522:108681. [PMID: 36166876 DOI: 10.1016/j.carres.2022.108681] [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: 06/23/2022] [Revised: 09/01/2022] [Accepted: 09/16/2022] [Indexed: 11/27/2022]
Abstract
The synthesis of novel bis-homodichloroinositol with a configuration similar to that of conduritol-D is reported for the first time. The photooxygenation of cis-dichloro-diene obtained using cyclooctatetraene as the starting molecule afforted the tricyclic endoperoxide. The reduction of the endoperoxide with thiourea gave the corresponding allylic cis-diol. Formation of the bis-carbamate groups with p-TsNCO of allylic cis-diol followed by the [(dba)3Pd2CHCl3] in the presence of trimethylsilyl azide, gave a new monocarbamate as well as oxazolidinone derivative. Oxidation of the double bond in the monocarbamate with osmium tetraoxide followed by acetylation furnished the desired monocarbamate triacetate. Eventually, the desired halogenated bicyclo[4.2.0] inositol (bis-homodichloroinositol) were obtained in high yield by hydrolysis of the acetate groups and monocarbanate group by potassium carbonate in methanol. Characterization of all the synthesized compounds were performed by FT-IR, 1H NMR, 13C NMR, COSY (2D-NMR), HRMS, and Elemental Analysis techniques.
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Affiliation(s)
- Latif Kelebekli
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, 52200, Ordu, Turkey.
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2
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Barotcu AZ, Karanfil A, Şahin E, Kelebekli L. Stereoselective synthesis of novel bis-homoinositols with bicyclo[4.2.0]octane motifs. Carbohydr Res 2022; 519:108611. [PMID: 35716487 DOI: 10.1016/j.carres.2022.108611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 06/03/2022] [Accepted: 06/06/2022] [Indexed: 11/29/2022]
Abstract
Starting from cyclooctatetraene, bis-homoconduritols with cis-inositol and allo-inositol (or bicyclo[4.2.0]octane motif) structures were synthesized. Photooxygenation of trans-7,8-dibromo-bicyclo[4.2.0]octa-2,4-diene allowed the preparation of tricyclic endoperoxide. The compound diacetate was obtained by reduction of endoperoxide with thiourea followed by acetylation reaction. Removal of halides with zinc dust in acetic acid yielded the dien-diacetate, a key compound of the designed molecules. OsO4 oxidation of diendiacetate followed by acetylation gave the corresponding hexaacetates. Finally, the novel desired bis-homoinositols were obtained in high yield by the ammonolysis of acetate groups. The structures of all synthesized compounds were characterized by spectroscopic methods.
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Affiliation(s)
- Ayşenur Zeren Barotcu
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, 52200, Ordu, Turkey
| | - Abdullah Karanfil
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, 52200, Ordu, Turkey
| | - Ertan Şahin
- Department of Chemistry, Faculty of Sciences, Ataturk University, 25240, Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, 52200, Ordu, Turkey.
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3
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Structural analysis of halogenated bicyclo[4.2.0] inositols, biological activities and molecular docking studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131357] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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4
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Zhigarev VA, Gringolts ML, Filatova MP, Finkelshtein ES. Synthesis and Metathesis Polymerization of New Monomer 7-Trimethylsilyltricyclo[4.2.2.02,5]deca-3,9-diene. POLYMER SCIENCE SERIES B 2021. [DOI: 10.1134/s1560090421050195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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De S, Jash M, Chowdhury C. Palladium(ii) catalysed cascade strategy for the synthesis of dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10-ols/-10(15H)-ones: easy access to 1,3,5,7-cyclooctatetraenes (COTs). Chem Commun (Camb) 2020; 56:15659-15662. [PMID: 33289730 DOI: 10.1039/d0cc06538b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
An atom-economic Pd(ii)-catalysed cascade cyclisation of 2-(biphenylethynyl)anilines tethered to an aldehyde or cyano group leads to the formation of dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10-ols 6 or dibenzo[5,6:7,8]cycloocta[1,2-b]indol-10(15H)-ones 8 with high yields (up to 95%). The reaction proceeds via amino-palladation of the alkyne followed by nucleophilic addition onto the aldehyde/cyano group. Treatment of 6 with p-TsOH·H2O smoothly provided cyclooctatetraene (COT) derivatives 7.
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Affiliation(s)
- Sukanya De
- Organic and Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, Kolkata-700032, India.
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6
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Aksu K, Akincioglu H, Gulcin I, Kelebekli L. Concise syntheses and some biological activities of dl-2,5-di-O-methyl-chiro-inositol, dl-1,4-di-O-methyl-scyllo-inositol, and dl-1,6-dibromo-1,6-dideoxy-2,5-di-O-methyl-chiro-inositol. Arch Pharm (Weinheim) 2020; 354:e2000254. [PMID: 32997390 DOI: 10.1002/ardp.202000254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 11/11/2022]
Abstract
The regio- and stereospecific synthesis of O-methyl-chiro-inositols and O-methyl-scyllo-inositol was achieved, starting from p-benzoquinone. After preparing dimethoxy conduritol-B as a key compound, regiospecific bromination of the alkene moiety of dimethoxy conduritol-B and acid-catalyzed ring opening of dimethoxydiacetate conduritol-B epoxide with Ac2 O afforded the desired new chiro-inositol derivatives and scyllo-inositol derivative, respectively. Spectroscopic methods were employed for the characterization of all synthesized compounds. The novel inositols (11-17) had effective inhibition profiles against human carbonic anhydrase isoenzymes I and II (hCA I and II) and acetylcholinesterase (AChE). The novel inositols 11-17 were found to be effective inhibitors against AChE, hCA I, and hCA II enzymes. Ki values were calculated in the range of 87.59 ± 7.011 to 237.95 ± 17.75 μM for hCA I, 65.08 ± 12.39 to 538.98 ± 61.26 μM for hCA II, and 193.28 ± 43.13 to 765.08 ± 209.77 μM for AChE, respectively. Also, due to the inhibitory effects of the novel inositols 11-17 against the tested enzymes, these novel inositols are potential drug candidates to treat some diseases such as glaucoma, epilepsy, leukemia, and Alzheimer's disease.
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Affiliation(s)
- Kadir Aksu
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, Ordu, Turkey
| | - Hulya Akincioglu
- Department of Chemistry, Faculty of Sciences and Arts, Agri Ibrahim Cecen University, Agri, Turkey
| | - Ilhami Gulcin
- Department of Chemistry, Faculty of Sciences, Ataturk University, Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Faculty of Sciences and Arts, Ordu University, Ordu, Turkey
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7
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Karanfil A, Şahin E, Kelebekli L. Synthesis of novel tetrols from syn-bisepoxide: Preparation of halogenated bicyclo[4.2.0] inositols. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131000] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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Kelebekli L, Aksu K, Şahin E. Regio- and stereospecific synthesis of dl-4,5-dibromo-4,5-dideoxy-3,6-O-methyl-chiro-inositol. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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10
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11
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Stereospecific synthesis of highly substituted novel carbasugar as carbonic anhydrase inhibitors: decahydronaphthalene-1,2,3,4,5,6,7-heptol. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.101] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Nasrallah DJ, Croatt MP. Rhodium(I)-Catalyzed [2+2+2+2] Cycloaddition of Diynes To Form Cyclooctatetraenes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402109] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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13
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Griffen JA, Kenwright SJ, Abou-Shehada S, Wharry S, Moody TS, Lewis SE. Benzoate dioxygenase fromRalstonia eutrophaB9 – unusual regiochemistry of dihydroxylation permits rapid access to novel chirons. Org Chem Front 2014. [DOI: 10.1039/c3qo00057e] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of benzoic acid by a microorganism expressing benzoate dioxygenase leads to the formation of an unusualipso,orthoarenecis-diol in sufficient quantities to be useful for synthesis.
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Affiliation(s)
- Julia A. Griffen
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah J. Kenwright
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Sarah Abou-Shehada
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
| | - Scott Wharry
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Thomas S. Moody
- Department of Biocatalysis and Isotope Chemistry
- Almac Group Ltd
- Craigavon, UK
| | - Simon E. Lewis
- Centre for Sustainable Chemical Technologies
- University of Bath
- Claverton Down, UK
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14
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Kelebekli L. Stereoselective Synthesis of Tricyclo[6.2.2.02,7]dodecane-3,6,9,10-tetrol via Selective Reduction of α,β-Unsaturated 1,4-DIKetone. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.754472] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Balcı N, Anıl B, Kelebekli L, Şahin E, Göksu S. Synthesis and Characterization of Novel Aryl Cyclitols: Polycyclitols. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.767347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Neslihan Balcı
- a Department of Chemistry , Ataturk University , Erzurum , Turkey
| | - Barış Anıl
- a Department of Chemistry , Ataturk University , Erzurum , Turkey
| | | | - Ertan Şahin
- a Department of Chemistry , Ataturk University , Erzurum , Turkey
| | - Süleyman Göksu
- a Department of Chemistry , Ataturk University , Erzurum , Turkey
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16
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El-Mansy MF, Sar A, Lindeman S, Donaldson WA. Generation of Molecular Complexity from Cyclooctatetraene: Preparation of Optically Active Protected Aminocycloheptitols and Bicyclo[4.4.1]undecatriene. Chemistry 2013; 19:2330-6. [DOI: 10.1002/chem.201203754] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Indexed: 11/11/2022]
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17
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Kelebekli L. Synthesis of Anti–-anti (anti–-syn)-3,4:8,9-Tetraacetoxy-11-Oxa-Tricyclo [4.4.1.01,6]Undecanes. JOURNAL OF CHEMICAL RESEARCH 2011. [DOI: 10.3184/174751911x12964930076566] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Synthesis of anti–-anti- and anti–-syn-3,4:8,9-tetraacetoxy-11-oxa-tricyclo[4.4.1.01,6] undecanes have been achieved starting from naphthalene. The Birch reduction of naphthalene gave 1,4,5,8-tetrahydro-naphthalene in high yield. 1,4,5,8-Tetrahydro-naphthalene was selectively oxidised with mCPBA to give 11-oxa-tricyclo[4.4.1.01,6]undeca-3,8-diene. OsO4 oxidation followed by acetylation furnished the corresponding tetraacetates.
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Affiliation(s)
- Latif Kelebekli
- Department of Chemistry, Faculty of Science and Arts, Ordu University, 52200 Ordu, Turkey
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18
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Kelebekli L, Kara Y, Celik M. Synthesis of a new class of aminocyclitol analogues with the conduramine D-2 configuration. Beilstein J Org Chem 2010; 6:15. [PMID: 20485597 PMCID: PMC2870711 DOI: 10.3762/bjoc.6.15] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2009] [Accepted: 02/07/2010] [Indexed: 11/23/2022] Open
Abstract
A new class of aminocyclitol derivatives with the bicyclo[4.2.0]octane skeleton was synthesized starting from cyclooctatetraene. Photooxygenation of trans-7,8-diacetoxy- and cis-7,8-dichlorobicyclo[4.2.0]octa-2,4-diene afforded the bicyclic endoperoxides. Reduction of the latter with thiourea followed by a Pd(0) catalyzed ionization/cyclization reaction gave the corresponding oxazolidinone derivatives. Oxidation of the double bond with KMnO₄ or OsO₄ followed by acetylation gave the acetate derivatives, the exact configuration of which was determined by spectroscopic methods. Hydrolysis of the oxazolidinone rings and removal of the acetate groups furnished the desired aminocyclitols.
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Affiliation(s)
- Latif Kelebekli
- Atatürk University, Faculty of Science, Department of Chemistry, TR-25240, Erzurum, Turkey
| | - Yunus Kara
- Atatürk University, Faculty of Science, Department of Chemistry, TR-25240, Erzurum, Turkey
| | - Murat Celik
- Atatürk University, Faculty of Science, Department of Chemistry, TR-25240, Erzurum, Turkey
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19
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Kelebekli L, Celik M, Kara Y. A Novel and Stereospecific Synthesis of Aminocyclitol: N-Tosyldihydroconduramine E2. JOURNAL OF CHEMICAL RESEARCH 2010. [DOI: 10.3184/030823410x12628681698796] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A stereospecific synthesis of N-tosyldihydroconduramine E2, a new aminocyclitol, has been synthesised starting from cyclohexa-1,3-diene. The photooxygenation of cyclohexa-1,3-diene afforded the bicyclic endoperoxide. Reduction of the endoperoxide with thiourea and then reaction of the bis-carbamate with p-TsNCO followed by a palladium-catalysed ionisation/cyclisation reaction, gave a vinyl oxazolidin-2-one. Oxidation of the double bond in the oxazolidin-2-one with KMnO4 followed by acetylation, gave the oxazolidinone-diacetates. Hydrolysis of the oxazolidinone ring and removal of the acetate groups gave the desired aminocyclitol, N-tosyldihydroconduramine E2.
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Affiliation(s)
- Latif Kelebekli
- Department of Chemistry, Ordu University, Ordu, Turkey
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Murat Celik
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Yunus Kara
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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20
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Wender P, Christy J, Lesser A, Gieseler M. The Synthesis of Highly Substituted Cyclooctatetraene Scaffolds by Metal-Catalyzed [2+2+2+2] Cycloadditions: Studies on Regioselectivity, Dynamic Properties, and Metal Chelation. Angew Chem Int Ed Engl 2009; 48:7687-90. [DOI: 10.1002/anie.200903859] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Wender P, Christy J, Lesser A, Gieseler M. The Synthesis of Highly Substituted Cyclooctatetraene Scaffolds by Metal-Catalyzed [2+2+2+2] Cycloadditions: Studies on Regioselectivity, Dynamic Properties, and Metal Chelation. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200903859] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Oztaskin N, Kelebekli L, Goksu S, Anil B, Sahin E. Synthesis and Characterisation of 2,3,4a,6,8a-penta-acetoxy decahydronaphthalene from 1,2,3,4-tetrahydronaphthalen-2-ol. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x431337] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
2,3,4a,6,8a-Penta-acetoxy decahydronaphthalene has been synthesised starting from 1,2,3,4-tetrahydronaphthalen-2-ol. The Birch reduction of 1,2,3,4-tetrahydronaphthalen-2-ol gave a high yield of 1,2,3,4,5,8-hexahydronaphthalen-2-ol which was acetylated. The OsO4 oxidation of the 1,2,3,4,5,8-hexahydronaphthalen-2-yl acetate followed by further acetylation gave the pentaacetates.
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Affiliation(s)
- Necla Oztaskin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
- Faculty of Education, University of Ağri Ibrahim Çeçen,04200 Agri, Turkey
| | - Suleyman Goksu
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Ertan Sahin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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23
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Balci N, Kelebekli L, Goksu S, Anil B, Sahin E. Synthesis and Characterisation of 2,3a,5,6,7a-pentaacetoxy-octahydro-1H-indene from indan-2-ol. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x430211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A synthesis of 2,3a,5,6,7a-pentaacetoxyoctahydro-1 H-indene has been achieved starting from indan-2-ol. The Birch reduction of indan-2-ol gave 4,7-dihydro-2-indanol in high yield which when followed by acetylation, resulted in the corresponding acetates. The OsO4 oxidation of the 2-acetoxy-4,7-dihydroindane followed by acetylation furnished the desired pentaacetates in high yield.
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Affiliation(s)
- Neslihan Balci
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Latif Kelebekli
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
- Faculty of Education, Ağrι Ibrahim Çeçen University, 04200 Ağrι, Turkey
| | - Suleyman Goksu
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Baris Anil
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
| | - Ertan Sahin
- Department of Chemistry, Atatürk University, 25240 Erzurum, Turkey
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24
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Valente P, Avery TD, Taylor DK, Tiekink ERT. Synthesis and chemistry of 2,3-dioxabicyclo[2.2.2]octane-5,6-diols. J Org Chem 2009; 74:274-82. [PMID: 19035821 DOI: 10.1021/jo8020506] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
1,4-Disubstituted 2,3-dioxabicyclo[2.2.2]oct-5-enes were dihydroxylated with osmium tetroxide to yield diols anti to the peroxide linkage in a highly selective manner. Reduction of the peroxide bond furnished cyclohexane-1,2,3,4-tetraols with toxocarol relative stereochemistry in excellent yield. This new methodology was employed to synthesize the natural product (1S,2R,3S,4R,5R)-2-methyl-5-(propan-2-yl)cyclohexane-1,2,3,4-tetrol (1) in a short sequence from (R)-alpha-phellandrene. Moreover, during the study of the chemistry of 2,3-dioxabicyclo[2.2.2]octane-5,6-diols a hitherto unknown rearrangement was discovered which has wide applicability for the synthesis of 1,4-dicarbonyls, including optically enriched synthons. A broad range of mechanistic investigations applicable to this rearrangement are also reported.
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Affiliation(s)
- Peter Valente
- Department of Chemistry, The University of Adelaide, South Australia 5005, Australia
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25
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Baran A, Balci M. Stereoselective Synthesis of Bishomo-inositols as Glycosidase Inhibitors. J Org Chem 2008; 74:88-95. [DOI: 10.1021/jo801344f] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arif Baran
- Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey, and Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey
| | - Metin Balci
- Department of Chemistry, Middle East Technical University, 06531 Ankara, Turkey, and Department of Chemistry, Sakarya University, 54100 Sakarya, Turkey
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26
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Menzek A, Kelebekli L, Altundaş A, Şahin E, Polat F. Cycloaddition Reaction of 1,4-Dihydronaphthalene 1,4-Epoxide with Cyclooctatetraene:CopeRearrangement in an Adduct. Helv Chim Acta 2008. [DOI: 10.1002/hlca.200890257] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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27
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Sengül ME, Menzek A, Sahin E, Arik M, Saracoglu N. Synthesis of cyclopropane-annulated conduritol derivatives: norcaran-2,3,4,5-tetraoles. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.05.066] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Baran A, Günel A, Balci M. Synthesis of Bicyclo[2.2.2]octane-2,3,5,6,7,8 hexols (Bishomoinositols) as Glycosidase Inhibitors. J Org Chem 2008; 73:4370-5. [DOI: 10.1021/jo800553u] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arif Baran
- Departments of Chemistry, Middle East Technical University, 06531 Ankara, Turkey, Sakarya University, 54100 Sakarya, Turkey, and Sinop University, 57000, Sinop, Turkey
| | - Aslihan Günel
- Departments of Chemistry, Middle East Technical University, 06531 Ankara, Turkey, Sakarya University, 54100 Sakarya, Turkey, and Sinop University, 57000, Sinop, Turkey
| | - Metin Balci
- Departments of Chemistry, Middle East Technical University, 06531 Ankara, Turkey, Sakarya University, 54100 Sakarya, Turkey, and Sinop University, 57000, Sinop, Turkey
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29
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Kelebekli L. Regio- and stereospecific synthesis of a new benzoconduritol-C derivative. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x287104] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A stereospecific synthesis of 3-(2-bromophenoxy)-1,2,3,4-tetrahydronaphthalen-1,2,4-triol (benzoconduritol-C derivative) has been achieved by a fully regio- and stereospecific rhodium catalysed reaction of oxabenzonorbornadiene in the presence of 2-bromophenol.
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Affiliation(s)
- Latif Kelebekli
- Department of Chemistry, Faculty of Arts and Science, Atatürk University, 25240 Erzurum, Turkey
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Cantekin S, Çalışkan R, Şahin E, Balci M. Synthesis of Phenyl-Substituted Conduritol B and Its Mechanism of Formation. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790231] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Chaudhury S, Lindeman S, Donaldson WA. Generation of molecular complexity from cyclooctatetraene: synthesis of a protected 2-(3′-carboxy-2′-benzoylcyclopentyl)glycine. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.08.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kelebekli L, Çelik M, Şahin E, Kara Y, Balci M. Stereospecific synthesis of a new class of aminocyclitol with the conduramine D-2 configuration. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.07.108] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Horasan-Kishali N, Sahin E, Kara Y. Regio- and Stereocontrolled Synthesis of (2R*,3R*,4R*)-3,4-Dichloro-1,2,3,4,5,8-hexahydronaphthalen-2-yl Acetatevia TandemSN2′ Reactions. Helv Chim Acta 2006. [DOI: 10.1002/hlca.200690122] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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