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Shetty, Nitinkumar S.,Khazi, Imtiyaz Ahmed M.,Ahn, Chul-Jin Korean Chemical Society 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
A series of new 6-aryl-3-(3,4-dimethoxy-phenyl)-2-phenylsulfanyl-imidazo[2,1-b]-thiazole (5a-c) and 6-aryl-2-benzenesulfonyl-3-(3,4-dimethoxy-phenyl)imidazo[2,1-b]- thiazole (6a-c) have been prepared and characterized by analytical and spectral methods. The title compounds 5a-c and 6a-c were obtained by the reaction of 4-(3,4-dimethoxy-phenyl)-5-phenylsulfanyl-thiazol-2-ylamine (3) and 5-benzenesulfonyl-4-(3,4-dimethoxy -phenyl)thiazol-2-ylamine (4) with various phenacyl bromides in anhydrous ethanol. These newly synthesized compounds (5a-c and 6a-c) were screened for their anthelmintic and anti-inflammatory activities, where they have displayed better activities.
Reversibly Thermochromic Cyclic Dipeptide Nanotubes
Seo, Min Jeong,Song, Jisoo,Kantha, Chandra,Khazi, Mohammed Iqbal,Kundapur, Umesha,Heo, Jung-Moo,Kim, Jong-Man American Chemical Society 2018 Langmuir Vol.34 No.28
<P>Owing to their capability of forming extensive hydrogen bondings and the facile introduction of chirality, cyclic dipeptides (CDPs) have gained great attention as scaffolds for functional supramolecules. Surprisingly, introduction of a photopolymerizable diacetylene (DA) moiety to the CDP afforded nanotubular structures with enhanced stability and reversible thermochromism. A series of CDP-containing DAs (CDP-DAs) are prepared by coupling 10,12-pentacosadiynoic acid with CDPs, cyclo(-Gly-Ser) and cis/trans cyclo(-Ser-Ser). Fabrication of CDP-DA self-assemblies in a polar chloroform and methanol solvent mixture affords nanotubes comprising single-wall and multiwall structures. The self-assembly behavior and morphology characteristic are examined by scanning electron microscopy and transmission electron microscopy. Next, X-ray diffraction analysis confirms well-ordered lamellar structures with a perfect agreement with the bilayer formation leading to the tubular structure via lamellar scrolling behavior. Upon UV irradiation, monomeric CDP-DA tubular assemblies result in the blue-colored CDP/polydiacetylene (PDA) nanotubes. Interestingly, CDP/PDA nanotubes exhibit a reversible blue-to-red color change for over 10 consecutive thermal cycles. The CDP-DA/PDA supramolecular system demonstrates potential applications in developing stimulus-responsive functional materials.</P> [FIG OMISSION]</BR>
Nitinkumar S. Shetty,Imtiyaz Ahmed M. Khazi,안철진 대한화학회 2010 Bulletin of the Korean Chemical Society Vol.31 No.8
A series of new 6-aryl-3-(3,4-dimethoxy-phenyl)-2-phenylsulfanyl-imidazo[2,1-b]-thiazole (5a-c) and 6-aryl-2-benzenesulfonyl-3-(3,4-dimethoxy-phenyl)imidazo[2,1-b]- thiazole (6a-c) have been prepared and characterized by analytical and spectral methods. The title compounds 5a-c and 6a-c were obtained by the reaction of 4-(3,4-dimethoxy-phenyl)-5-phenylsulfanyl-thiazol-2-ylamine (3) and 5-benzenesulfonyl-4-(3,4-dimethoxy -phenyl)thiazol-2-ylamine (4) with various phenacyl bromides in anhydrous ethanol. These newly synthesized compounds (5a-c and 6a-c) were screened for their anthelmintic and anti-inflammatory activities, where they have displayed better activities.
Bathula, C.,Badgujar, S.,Belavagi, N. S.,Lee, S. K.,Kang, Y.,Khazi, I. A. Springer Science + Business Media 2016 Journal of fluorescence Vol.26 No.1
<P>This paper reports on the synthesis and characterization of novel donor-acceptor (D-A) conjugated polymers containing triisopropylsilylethyny(TIPS)benzo[1,2-b:4,5-b']dithiophene-diketopyrrolopyrrole (P1 and P2) through Stille co-polymerization method. Thermal stability, optical and electrochemical properties of these polymers were determined. Optical band gaps of the polymers as calculated from their film onset absorption edges were found to be 1.46 and 1.44 eV, respectively. Electrochemical studies revealed HOMO and LUMO energy levels to be -5.22, -5.60 eV, and -3.76, -4.16 eV, respectively. The polymers were thermally stable up to 400-440 A degrees C. Optoelectronic studies indicated that these materials to be promising candidates in solar cell applications.</P>
Pawan Kumar,Ki-Hyun Kim,Jechan Lee,Jin Shang,Mohammed Iqbal Khazi,Naresh Kumar,Grzegorz Lisak 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.84 No.-
Recently, the potential application of metal-organic frameworks (MOFs) has been recognized for removaland sensing of various organic pollutants (e.g., nitroaromatic compounds, pesticides, polycyclic aromaticcompounds, and herbicides) due to their unique tunable and versatile properties. In this paper, wereviewed the recent experimental and computational efforts to develop MOFs for adsorption removal,catalytic conversion, and sensing of nitroaromatic compounds. To this end, wefirst classifiednitroaromatic compounds in association with their toxicity. Then, we reviewed current advances madein the application of MOFs towards removal of nitroaromatic compounds (based on adsorption/catalysis)and their sensing applications. Furthermore, the discussion was made for the practical performance ofMOFs for such applications. Finally, the future prospects for MOFs are described in thefields of adsorptionremoval, catalytic conversion, and sensing of nitroaromatic compounds.