The imine residue [C=N = 1.268 (3) Å; conformation = E] is twisted [N-N-C-N = 87.8 (2)°] out of the plane (r.m.s. deviation = 0.016 Å) of the central 1,2,4-triazole ring in the title compound, C(30)H(34)F(2)N(6)S. A small twist also occurs between the imine and terminal benzene rings [N-C-C-C = -169.8 (2)°]. The piperazine ring (chair conformation) occupies a position almost normal to the central plane [N-N-C-N = 87.8 (2)°]. In the crystal, the mol-ecules are consolidated into a three-dimensional architecture via C-H⋯S, C-H⋯π and π-π inter-actions, the latter between centrosymmetrically related difluoro-benzene rings [inter-centroid distance = 3.9389 (18) Å].
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http://dx.doi.org/10.1107/S1600536812025135 | DOI Listing |
Langmuir
October 2024
Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore, Karnataka 562112, India.
This research work reports the synthesis of copper oxide (CuO) nanoparticles supported on activated carbon by a simple impregnation method using 2-propanol as a green solvent, followed by calcination. The synthesized CuO@C is used as an efficient heterogeneous nanocatalyst for the synthesis of 2-indazoles and quinazolines utilizing commercially available 2-bromobenzaldehydes, primary amines, and sodium azide under ligand-free and base-free conditions. The present methodology demonstrates the formation of new N-N, C-N, and C═N bonds under one-pot reaction conditions using PEG-400 as a green solvent.
View Article and Find Full Text PDFChemistry
November 2024
Department of Materials Sciences, Graduate School of Nanobioscience, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama, 236-0027, Japan.
We present the photoreaction of newly prepared bis(6,6'-dimethyl-2,2'-bipyridine)(oxalato)rhodium(III) ([Rh(N N)(ox)]) in CDOD. Photoirradiation of this complex causes the dissociation of ox, followed by the formation of the unprecedented Rh(III) complex with Rh-H and Rh-C σ bonds, [Rh(N N)(C N)(H)(CDOD)] (C N=[6,6'-dimethyl-2,2'-bipyridine]-3-yl-κC,κN). This hydride formation and cyclometallation spontaneously proceed owing to the conflict between the steric hindrance arising from the methyl groups of N N and the driving force for the structural change due to [Rh(N N)] formation.
View Article and Find Full Text PDFOrg Lett
August 2024
School of Environmental and Chemical Engineering, Wuyi University, Jiangmen 529020, China.
A novel [1+1+3] annulation of AgNOx, isocyanides, and isocyanates for the selective synthesis of 1,2,4-triazoles is presented herein. In this transformation, AgNOx and isocyanates are used as nitrogen sources instead of the traditional hydrazine or diazonium reagents. This process also involves N-O/C-H/C═N bond cleavage and the construction of new N-N/C-N bonds with a good substrate scope and functional group tolerance.
View Article and Find Full Text PDFACS Omega
November 2023
Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, Assam India.
An anionic mercury(II) complex of 2-(anthracen-9-ylmethylene)--phenylhydrazine carbothioamide () and two isomers of a neutral mercury(II) complex of the anion of the same ligand () were reported. The anionic complex had a monodentate ligand (a neutral form of the ligand) and chloride ligands. The two conformational isomers were of the neutral mercury(II) complex .
View Article and Find Full Text PDFJ Med Chem
July 2023
Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, Brno CZ-61200, Czech Republic.
Herein, we report a series of new octahedral iridium(III) complexes - of the type [Ir(N^N^N)(C^N)Cl]PF (N^N^N = 4'-(-tolyl)-2,2':6',2″-terpyridine; C^N = deprotonated 2-arylbenzimidazole backbone) to introduce new metal-based compounds for effective inhibition of metastatic processes in triple-negative breast cancer (TNBC). The results show that the structural modifications within the C^N scaffold strongly impact the antimetastatic properties of these complexes in TNBC cells. Furthermore, testing the antimetastatic effects of the investigated Ir complexes revealed that the highest antimetastatic activity in TNBC cells is exhibited by complex .
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