96460-77-4Relevant academic research and scientific papers
Nanoporous Cu doped ZnS nanoparticles an efficient photo catalyst for the chemoselective synthesis of 2-substituted azoles via C-N arylation/ CSp3– H oxidation/ cyclization/dehydration sequence in visible light
Dandia, Anshu,Bansal, Sarika,Sharma, Ruchi,Kumar Mahawar, Dinesh,Rathore, Kuldeep S.,Lal Meena, Mohan,Parewa, Vijay
, (2019/12/09)
ZnS and Cu:ZnS nanoparticles were prepared by aqueous chemical method and characterized by several analytical tools. Nanoparticles have an average size of about ~ 18 nm and possess highly open mesopores, moderate surface area, and uniform morphology. UV–vis spectra designate that doping of Cu shifted the optical response of the ZnS nanoparticles in to a visible region. These Cu:ZnS nanoparticles were employed as a photocatalyst for chemoselective synthesis of 2-substituted azoles by the reaction of benzyl bromides and 1,2-Diaminobenzene or 2-Mercaptoaniline in visible light. Analogous experiments confirmed that the reaction were proceeds through one pot C–N arylation/ CSp3– H oxidation/ cyclization/dehydration sequence. The enhanced catalytic activity by doping could be attributed to the presence of trapping level generated by copper doping which augments the relaxation time of electron and holes so that they are easily available for the reaction. The method was also applicable for the synthesis of quinazolin-4(3H)-ones.
MWCNTs-ZrO2 as a reusable heterogeneous catalyst for the synthesis of N-heterocyclic scaffolds under green reaction medium
Halder, Bipasa,Banerjee, Flora,Nag, Ahindra
, (2020/07/24)
A simple, efficient, and facile heterogeneous multi-walled carbon nanotubes-zirconia nanocomposite (MWCNTs-ZrO2) has been synthesized using natural feedstock coconut juice (água-de-coco do Ceará). The synthesized catalyst was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, and X-ray photoelectron spectroscopy analysis. The heterogeneous nanocomposite has been used for one-pot synthesis of various N-heterocyclic compounds like pyrazoles, 1,2-disubstituted benzimidazoles, 2-arylbenzazoles, and 2,3-dihydroquinazolin-4(1H)-ones under green reaction medium at room temperature. This novel method has several advantages, such as short reaction time, simple work-up, excellent yield, and green reaction conditions. The catalyst was recycled up to four times without significant loss in catalytic activity.
Design, synthesis and evaluation of benzothiazole derivatives as multifunctional agents
Andreotti, Elisa,Baldisserotto, Anna,Balzarini, Jan,Buzzi, Raissa,Dissette, Valeria,Djuidje, Ernestine Nicaise,Liekens, Sandra,Manfredini, Stefano,Sciabica, Sabrina,Serra, Elena,Vertuani, Silvia
, (2020/06/22)
Oxidative stress is the product or aetiology of various multifactorial diseases; on the other hand, the development of multifunctional compounds is a recognized strategy for the control of complex diseases. To this end, a series of benzothiazole derivatives was synthesized and evaluated for their multifunctional effectiveness as antioxidant, sunscreen (filter), antifungal and antiproliferative agents. Compounds were easily synthesized via condensation reaction between 2-aminothiophenols and different benzaldehydes. SAR study, particularly in position 2 and 6 of benzothiazoles, led to the identification of 4g and 4k as very interesting potential compounds for the design of multifunctional drugs. In particular, compound 4g is the best blocker of hERG potassium channels expressed in HEK 293 cells exhibiting 60.32percent inhibition with IC50 = 4.79 μM.
Microwave assisted aqueous phase synthesis of benzothiazoles and benzimidazoles in the presence of Ag2O
Sakram,Rambabu,Ashok,Sonyanaik,Ravi
, p. 2737 - 2743 (2017/03/22)
A simple and high yielding method for synthesized benzothiazoles and benzimidazole in water under micro wave irradiation by the reaction of 2-amino thiophenol and o-phenylenediamine with various aromatic aldehydes in the presence of Ag2O. Agsu
The immunomodulation potential of the synthetic derivatives of benzothiazoles: Implications in immune system disorders through in vitro and in silico studies
Khan, Khalid Mohammed,Mesaik, Mohammad A.,Abdalla, Omer M.,Rahim, Fazal,Soomro, Samreen,Halim, Sobia A.,Mustafa, Ghulam,Ambreen, Nida,Khalid, Ahmad Shukralla,Taha, Muhammad,Perveen, Shahnaz,Alam, Muhammad Tanveer,Hameed, Abdul,Ul-Haq, Zaheer,Ullah, Hayat,Rehman, Zia Ur,Siddiqui, Rafat Ali,Voelter, Wolfgang
, p. 21 - 28 (2015/12/05)
Benzothiazole and its natural or synthetic derivatives have been used as precursors for several pharmacological agents for neuroprotective, anti-bacterial, and anti-allergic activities. The objecctive of the present study was to evaluate effects of benzot
Yttrium-catalyzed heterocyclic formation via aerobic oxygenation: A green approach to benzothiazoles
Fan, Li-Yan,Shang, Ying-Hui,Li, Xiang-Xiong,Hua, Wen-Jun
supporting information, p. 77 - 80 (2015/01/30)
The YCl3-catalyzed aerobic oxidative cyclization reaction for the synthesis of benzothiazoles has been developed. This method provides a practical, effective and green synthetic approach to benzothiazoles which are important units in many biologically active compounds.
An efficient aqueous phase synthesis of benzimidazoles/benzothiazoles in the presence of β-cyclodextrin
Katla, Ramesh,Chowrasia, Rakhi,Manjari, Padma Sunitha,Domingues, Nelson Luís C.
, p. 41716 - 41720 (2015/05/27)
Benzimidazoles/benzothiazoles were synthesized in water under neutral conditions by the reaction of aromatic aldehydes, o-phenylenediamine/2-amino thiophenol mediated by β-cyclodextrin in high yields. β-Cyclodextrin can be recovered and reused without sig
Antileishmanial activities of benzothiazole derivatives
Rahim, Fazal,Samreen,Taha, Muhammad,Saad, Syed Muhammad,Perveen, Shahnaz,Khan, Momin,Alam, Muhammad Tanveer,Khan, Khalid Mohammed,Choudhary, M. Iqbal
, p. 157 - 161 (2015/05/20)
Benzothiazole derivatives 1-22 were synthesized from 2-aminothiophenol and all synthetic compounds were screened for in vitro antileishmanial activity. These compound showed different types activities against leishmania with IC50 values ranging
NOVEL COMPOUND HAVING SKIN-WHITENING, ANTI-OXIDIZING AND PPAR ACTIVITIES AND MEDICAL USE THEREFOR
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Paragraph 0151-0159; 0160, (2014/02/16)
Provided are a novel compound having skin-whitening, anti-oxidizing and PPAR activities and a medical use thereof, and the compound has skin-whitening activities for the suppression of tyrosinase, and accordingly, is useful for use in skin-whitening pharmaceutical composition or cosmetic products; has anti-oxidant activities, and accordingly, is useful for the prevention and treatment of skin-aging; and has PPAR activities, and in particular, PPARα and PPARγ activities, and accordingly, is useful for use in pharmaceutical compositions or health foods which are effective for the prevention and treatment of obesity, metabolic disease, or cardiovascular disease.
IMMUNOSUPPRESSIVE COMPOUNDS
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Paragraph 0023, (2015/01/07)
The invention feature series of benzothiazole derivatives as potent immunosuppressive and antiinflammatory agents. Eight compounds 2, 4, 5, 8, 9, 10, 12, and 18 showed potent inhibitory activity on PHA-activated T-cell proliferation. Compounds 2, 4, 8, and 18 were found to have a potent inhibitory activity with IC50 values ranging 50 values 1.9, 5050), respectively.
