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A new route for the synthesis of functionalized benzothiadiazine 1,1-dioxide derivatives via intramolecular C–H activation reactions of N,N′,N′′-trisubstituted guanidines and benzenesulfonylchloride
, Article Journal of Sulfur Chemistry ; Volume 39, Issue 6 , 2018 , Pages 646-655 ; 17415993 (ISSN) ; Nematpour, M ; Rezaee, E ; Jahani, M ; Tabatabai, S. A ; Sharif University of Technology
Taylor and Francis Ltd
2018
Abstract
In this study, a simple and appropriate procedure for the synthesis of functionalized benzothiadiazine 1,1-dioxide with good yields via the Cu-catalyzed intramolecular C–H activation reaction from benzenesulfonylchloride and N,N′,N′′-trisubstitutedguanidines, generated by copper(II) oxide-catalyzed hydroamination of carbodiimides, is reported. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group
One-pot synthesis of highly functionalized benzo [1,3] thiazine from isocyanides, aniline, and heterocumulene via Cu-catalyzed intramolecular C-H activation reactions
, Article Journal of the Chinese Chemical Society ; Volume 66, Issue 11 , 2019 , Pages 1537-1541 ; 00094536 (ISSN) ; Nematpour, M ; Rezaee, E ; Jahani, M ; Tabatabai, S. A ; Sharif University of Technology
Chinese Chemical Society Taiwan
2019
Abstract
A one-pot synthesis of functionalized benzo thiazine derivatives via a Cu-catalyzed, multicomponent reaction of isocyanides, aniline, and heterocumulenes in acetonitrile at room temperature was developed. Transition metal-catalyzed activation of C-H bonds under mild copper-catalytic reaction conditions, using simple and available starting materials, also obtaining a pure product with high yield without applying column chromatography are the major advantages of the applied method among the other ones used for this purpose. The structures are confirmed spectroscopically (1H- and 13C-NMR, IR, and EI-MS) and through elemental analyses. © 2019 The Chemical Society Located in Taipei & Wiley-VCH...
A novel copper-catalyzed synthesis of n-monosubstituted 2-alkynimi-damides from 1-alkynes and trichloroacetamidines
, Article Letters in Organic Chemistry ; Volume 17, Issue 9 , 2020 , Pages 704-708 ; Nematpour, M ; Rezaee, E ; Jahani, M ; Tabatabai, S. A ; Sharif University of Technology
Bentham Science Publishers
2020
Abstract
A one-pot Cu-catalyzed synthesis of functionalized alkynyl imidamide by terminal alkynes, trichloroacetonitrile and aniline or benzyl amine is reported. The compounds were produced via coupling reaction of terminal alkynes with trichloroacetamidine. This method was performed under mild, ligand-free conditions and easy work-up method. © 2020, Bentham Science Publishers. All rights reserved
Synthesis of poly-substituted thiophenes in the realm of sulfonylketenimines chemistry
, Article Journal of Sulfur Chemistry ; Volume 41, Issue 2 , 2020 , Pages 146-153 ; Sedaghat, A ; Nematpour, M ; Jahani, M ; Tabatabai, S. A ; Sharif University of Technology
Taylor and Francis Ltd
2020
Abstract
An efficient synthesis of highly substituted thiophenes was developed by means of sulfonylketenimines in a multi-step reaction including heterocumulene system containing sulfur and nitro-alkanes with acidic α-hydrogen. The speed and ease of conducting this four-component reaction under mild conditions and using available materials makes it an ideal method to synthesize high purity substituted thiophenes with sulfonamide moiety. All structures synthesized are confirmed by the instrumental analysis (EI-MS, IR and 1H /13C-NMR). © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group