134953-13-2Relevant academic research and scientific papers
The first report on the preparation of peptide nanofibers decorated with zirconium oxide nanoparticles applied as versatile catalyst for the amination of aryl halides and synthesis of biaryl and symmetrical sulfides
Ghorbani-Choghamarani, Arash,Taherinia, Zahra
, p. 9414 - 9423 (2017)
We have reported the preparation of peptide nanofibers decorated with zirconium oxide nanoparticles for the first time as a novel, non-toxic, inexpensive and recyclable catalyst for the amination of aryl halides and synthesis of biaryl and symmetrical sulfides (via reaction of aryl halides with S8 or 2-thiobarbituric acid as sulfur transfer reagents). The structure of the catalyst was studied by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), atomic absorption spectroscopy (AAS), UV-visible absorption and fluorescence spectroscopy.
Improved synthesis of thiofluorescein
Russkikh,Konstantinova,Berezhnaya,Gerasimova,Shelkovnikov
, p. 57 - 60 (2005)
Thiofluorescein was synthesized in a preparative yield by successive demethylation of 3,3′-dimethoxydiphenyl sulfide to 3,3′- dihydroxydiphenyl sulfide and condensation of the latter with phthalic anhydride in H2SO4. The title compound was also obtained in a higher yield from 3,3′-dimethoxydiphenyl sulfide directly in a one-pot process combining the condensation in H2SO4 and demethylation in 2 Py·H2SO4. 2005 Pleiades Publishing, Inc.
Dechalcogenization of Aryl Dichalcogenides to Synthesize Aryl Chalcogenides via Copper Catalysis
Cao, Fei,Chen, Jinhong,Deng, Jiedan,Deng, Xuemei,Hou, Yongsheng,Shao, Xiangfeng,Shi, Tao,Wang, Yongqiang,Wang, Zhen,Wu, Lingxi,Yang, Jinru,Yang, Yuhang
, p. 2707 - 2712 (2020/03/11)
An application for dechalcogenization of aryl dichalcogenides via copper catalysis to synthesize aryl chalcogenides is disclosed. This approach is highlighted by the practical conditions, broad substrate scope, and good functional group tolerance with several sensitive groups such as aldehyde, ketone, ester, amide, cyanide, alkene, nitro, and methylsulfonyl. Furthermore, the robustness of this methodology is depicted by the late-stage modification of estrone and synthesis of vortioxetine. Remarkably, synthesis of more challenging organic materials with large ring tension under milder conditions and synthesis of some halogen contained diaryl sulfides which could not be synthesized using metal-catalyzed coupling reactions of aryl halogen are successfully accomplished with this protocol.
Trisaminomethane–cobalt complex supported on Fe3O4 magnetic nanoparticles as an efficient recoverable nanocatalyst for oxidation of sulfides and C–S coupling reactions
Ashraf, Muhammad Aqeel,Liu, Zhenling,Peng, Wan-Xi
, (2019/11/16)
In this work, trisaminomethane–cobalt complex immobilized onto the surface of Fe3O4 magnetic nanoparticles was successfully prepared via a simple and inexpensive procedure. The prepared nanocatalyst was considered a robust and clean nanoreactor catalyst for the oxidation and synthesis of sulfides under green conditions. This ecofriendly heterogeneous catalyst was characterized by Fourier transform infrared spectroscopy, X-ray diffractometry, energy-dispersive X-ray spectroscopy, inductively coupled plasma-atomic emission spectroscopy, thermogravimetric analysis, vibrating sample magnetometry, X-ray mapping, scanning electron microscopy, and transmission electron microscopy techniques. Use of green medium, easy separation and workup, excellent reusability of the nanocatalyst, and short reaction time are some outstanding advantages of this method.
Synthesis and nano-Pd catalyzed chemoselective oxidation of symmetrical and unsymmetrical sulfides
Li, Xing,Du, Jia,Zhang, Yongli,Chang, Honghong,Gao, Wenchao,Wei, Wenlong
, p. 3048 - 3055 (2019/03/21)
A highly chemoselective, efficient and nano-Pd catalyzed protocol for the rapid construction of sulfoxides and sulfones via the oxidation of symmetrical and unsymmetrical sulfides using H2O2 as an oxidant has been developed, respectively. The ready availability of starting materials, easy recovery and reutilization of the catalyst, wide substrate scope, and high yields make this protocol an attractive alternative. The process also involves the metal-free and microwave-promoted synthesis of symmetrical diarylsulfides, and FeCl3-mediated preparation of symmetrical diaryldisulfides through the reaction of arenediazonium tetrafluoroborates with Na2S·9H2O as a sulfur source. In addition, unsymmetrical sulfides were generated via the K2CO3-mediated reaction of arenediazonium tetrafluoroborates with symmetrical disulfides.
Preparation and Characterization of Ni-Modified Graphene Oxide Complex as an Efficient Catalyst for the Synthesis of Sulfides via Reaction of Arylhalides with S8 or Thiourea
Ghafouri-Nejad, Raziyeh,Hajjami, Maryam,Nejat, Razieh
, (2018/01/27)
In this work, complex of Ni-modified graphene oxide was prepared and characterized using FT-IR spectroscopy, SEM, XRD, TGA and ICP-OES techniques. This compound used as an efficient and recoverable catalyst for the C–S coupling reaction using sulfur-transfer reagents (S8 or thiourea). The catalyst was easily separated using a simple filtration and reusable without significant loss of their catalytic efficiency.
Zirconium oxide complex anchored on boehmite nanoparticles as highly reusable organometallic catalyst for C–S and C–O coupling reactions
Ghorbani-Choghamarani, Arash,Seydyosefi, Zeinab,Tahmasbi, Bahman
, (2018/07/31)
Boehmite nanoparticles were prepared by a simple and inexpensive procedure in water using commercially available materials without inert atmosphere. Then, the surface of the boehmite nanoparticles was modified using 3-mercaptopropyltrimethoxysilane and subsequently zirconium oxide was supported on the modified surface. Zirconium oxide supported on boehmite nanoparticles (Pr.S-ZrO@boehmite) was characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and inductively coupled plasma technique. The catalytic application of Pr.S-ZrO@boehmite was studied in C–O and C–S coupling reactions for synthesis of valuable compounds such as ether and sulfide derivatives. All products were obtained in good to excellent yields and the catalyst could be recovered and reused several times without significant loss of catalytic efficiency. Furthermore, zirconium oxide is rarely used as catalyst for cross-coupling reactions.
An efficient and recyclable catalytic system for carbon–sulfur coupling reaction and synthesis of 5-substituted 1H-tetrazoles
Ghorbani-Choghamarani, Arash,Moradi, Zahra,Azadi, Gouhar
, p. 237 - 251 (2018/01/04)
In this research paper, efficient and economical protocols for the synthesis of symmetrical sulfides and 5-substituted 1H-tetrazoles have been reported using Fe3O4@SBTU@Ni(II) as a heterogeneous and recoverable nanocatalyst. The noticeable features of this catalytic system are: operational simplicity, environmentally benign, easier work-up procedure, green and efficient synthetic entry to excellent yield of products in a high reusability and applicability to various starting materials and, therefore, cost efficiency.
Ligand-free copper-catalysed direct synthesis of diaryl sulfides and diaryl disulfides in wet poly(ethylene glycol)
Nowrouzi, Najmeh,Abbasi, Mohammad,Latifi, Hadis
, (2017/03/01)
An improved protocol has been developed for the one-pot CuI-catalysed preparation of symmetric diaryl sulfides from their available aryl halides in the presence of thiourea as sulfur transfer agent and in the absence of both ligand and organic solvent. This catalytic system was also used for the high-yielding preparation of diaryl disulfides in the presence of C2Cl6 as oxidant.
Fe-Cu catalyzed synthesis of symmetrical and unsymmetrical diaryl thioethers using 1,3-benzoxazole-2-thiol as a sulfur surrogate
Tber,Hiebel,El Hakmaoui,Akssira,Guillaumet,Berteina-Raboin
, p. 72030 - 72036 (2016/08/09)
An efficient Fe-Cu catalyzed approach is herein developed using 1,3-benzoxazole-2-thiol as a thiol surrogate for the synthesis of symmetrical and unsymmetrical diaryl thioethers. This method provides an odorless and inexpensive strategy which can be applied to various aryl and nitrogen containing aryl halides in moderate to excellent yields up to 90%.
