Výsledky vyhledávání - "Toktam Afrough"

Fast and efficient regioselective synthesis of a novel eight membered ring system, 5H-benzo[f]pyrimido[4,5-b][1,5]oxazocine

Autor: Toktam Afrough, Hossein Eshghi

Publikováno v: Monatshefte für Chemie - Chemical Monthly. 152:475-479

An efficient two-steps strategy for the regioselective synthesis of the benzo[f]pyrimido[4,5-b][1,5]oxazocine as a novel tricyclic system has been developed via inter- and intramolecular heterocyclization of 2,4-dichloro-5-(chloromethyl)-6-methylpyri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9280e1ce62e2e9aec5cee04573282cd7
https://doi.org/10.1007/s00706-021-02758-y

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An Efficient One-Pot and Regioselective Synthesis of Novel Heterocyclic Systems of 5,6-Dihydrobenzo[b]Pyrimido[5,4-f][1,4]Oxazepine

Autor: Fahimeh Assadzadeh, Hossein Eshghi, Toktam Afrough

An efficient and convenient one-pot two-step process for the regioselective synthesis of the novel tricyclic system 2-chloro-4-methyl-5,6-dihydrobenzo[b]pyrimido[5,4-f][1,4] oxazepine has been described via heterocyclization of 5-(chloromethyl)-2,4-d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ac8c8e9503a668c77f229a274c7d13e

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Synthesis, Characterization and In Vitro Antibacterial Evaluation of Novel 4-(1-(Pyrimidin-4-yl)Ethyl)-12H-Pyrimido[4′,5′:5,6][1,4]Thiazino[2,3-b]Quinoxaline Derivatives

Autor: Hossein Eshghi, Toktam Afrough, Mohammadreza Moghaddam-Manesh, Hamid Beyzaei, Mehdi Bakavoli

Publikováno v: Polycyclic Aromatic Compounds. 41:735-745

A new methodology for the synthesis of 4-(1-(pyrimidin-4-yl)ethyl)-12H-pyrimido[4′,5′:5,6][1,4]thiazino[2,3-b]quinoxaline derivatives 5a-g was introduced. Condensation of 5-bromo-4-[1-(5-bromo-2,6-...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::38d404196e3dabe392c3e50356d48dd2
https://doi.org/10.1080/10406638.2019.1614640

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A New Multicomponent Synthetic Route to Hexahydropyrido[2,3-d ]pyrimidine Derivatives

Autor: Toktam Afrough, Mehdi Bakavoli, Hossein Eshghi

Publikováno v: Journal of Heterocyclic Chemistry. 56:636-641

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e55872b7b56f80efd50971946cd1546a
https://doi.org/10.1002/jhet.3441

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Optimization of Chitosan-Gelatin Nanofibers Production: Investigating the Effect of Solution Properties and Working Parameters on Fibers Diameter

Autor: Ali Moradi, Jebrail Movaffagh, Zohreh Rozbeh, Nafise Amiri, Sayyed Abolghasem Sajadi Tabassi, Toktam Afrough

Publikováno v: BioNanoScience. 8:778-789

Electrospinning of chitosan-gelatin, using organic solvents, have already been reported. This study was designed to fabricate, characterize, and optimize electrospun chitosan-gelatin nanofibrous membranes using acetic acid as a more safe alternative

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3e8720a94699d6629cbd1c830ab2bab5
https://doi.org/10.1007/s12668-018-0540-5

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Synthesis and characterisation of new 3-methyl-6-[1-(pyrimidin-4-yl)ethyl]-5H-pyrimido[5,4-e][1,2,4]triazolo[3,4-b][1,3,4]thiadiazine derivatives

Autor: Hossein Eshghi, Toktam Afrough, Mehdi Bakavoli

Publikováno v: Journal of Chemical Research. 41:376-379

A new series of 3-methyl-6-[1-(pyrimidin-4-yl)ethyl]-5 H-pyrimido[5,4- e][1,2,4]triazolo[3,4- b][1,3,4]thiadiazine derivatives was synthesised through the condensation reaction of 5-bromo-4-[1-(5-bromo-2,6-dichloropyrimidin-4-yl)ethyl]-2-chloro-6-met

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d7de8a6205a86e86fc8fea891ac1bf9
https://doi.org/10.3184/174751917x14967701766978

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Regioselective synthesis of new 5H,10H-dipyrimido[2,1-b:4′,5′-d][1,3]thiazine: a combined experimental and computational study

Autor: Javad Tajabadi, Mehdi Bakavoli, Toktam Afrough, Joel T. Mague, Hossein Eshghi

Several derivatives of the novel tricyclic system ‘dipyrimido[2,1-b:4′,5′-d][1,3]thiazine’ were synthesized via inter- and intramolecular heterocyclization of 2,4-dichloro-5-(chloromethyl)-6-methylpyrimidine and 6-amino-4-aryl-2-thioxo-1,2,3,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ae7d0fdf0bc53d3608361cf405a6d7c

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ChemInform Abstract: Synthesis, Characterization and Theoretical Evaluations of HMDS Promoted Chemoselective O-Alkylation of Uracils

Autor: Hossein Eshghi, Toktam Afrough, Javad Tajabadi, Mehdi Bakavoli, Ali Shiri

Publikováno v: ChemInform. 45

The sodium salts of the conjugated bases of uracils undergo highly chemoselective O4-monoalkylation when treated with various alkyl halides in dry DMF, while the use of methyl iodide results in N1+N3-dimethylation. Theoretical evaluations of the chem

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::002b589185edc7b79b56b84c77f842e9
https://doi.org/10.1002/chin.201404166

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Corrigendum to 'Synthesis, characterization and theoretical evaluations of HMDS promoted chemoselective O-alkylation of uracils' [Tetrahedron 69 (2013) 8470–8476]

Autor: Mehdi Bakavoli, Ali Shiri, Toktam Afrough, Javad Tajabadi, Hossein Eshghi

Publikováno v: Tetrahedron. 69:9166

The text in page 1, column 1, paragraph 3 has been corrected as follows: The chemoselectivity in the alkylation of uracils has recently been reviewed by Krzyszto Walezac et al. Most chemical efforts in uracil chemistry has been devoted towards select

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f3503e0c5bd59224164b8b8df2de5fad
https://doi.org/10.1016/j.tet.2013.08.039

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