Disperse Dyes Based on Thiazole, Their Dyeing Application on Polyester Fiber and Their Antimicrobial Activity

Various diazotized aryl amines were coupled with N-(4-nitrophenyl)-2-[(4-phenyl-1,3-thiazol-2-yl)amino]acetamide to give the corresponding various azo disperse dyes (D1-D13). These dyes were applied to polyester fiber by HTHP method and their fastness properties were evaluated. Dyes were characterized by IR, elemental analysis, and NMR spectral studies. These dyes showed very good antibacterial and antifungal activities.

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Design, Synthesis, and Antimicrobial Evaluation of Novel Pyrazoles and Pyrazolyl 1,3,4-Thiadiazine Derivatives

Molecules ◽

10.3390/molecules23092092 ◽

2018 ◽

Vol 23 (9) ◽

pp. 2092 ◽

Cited By ~ 10

Author(s):

Ibrahim Radini

Keyword(s):

Antimicrobial Activity ◽

Minimum Inhibitory Concentration ◽

Elemental Analysis ◽

Inhibitory Concentration ◽

Diazonium Salts ◽

Design Synthesis ◽

Antifungal Activities ◽

Antibacterial And Antifungal Activities ◽

Antimicrobial Evaluation ◽

Antibacterial And Antifungal

A novel series of pyrazolyl 1,3,4-thiadiazines 5a–c, 8a–c, 12, 15a–c, 17a–c, and 20 was prepared from the reaction of pyrazole-1-carbothiohydrazide 1a,b with 2-oxo-N′-arylpropanehydrazonoyl chloride, 2-chloro-2-(2-arylhydrazono)acetate, and 3-bromoacetylcoumarin. Moreover, the regioselective reaction of 5-pyrazolone-1-carbothiohydrazide 1a with 4-substituted diazonium salts and 4-(dimethylamino)benzaldehyde gave the corresponding hydrazones 21a–c and 22. The newly prepared compounds were characterized by spectroscopy and elemental analysis. Many new synthesized compounds showed considerable antimicrobial activity against tested microorganisms. Hydrazones 21a–c and 22 showed remarkable antibacterial and antifungal activities. 4-(2-(p-tolyl)hydrazineylidene)-pyrazole-1-carbothiohydrazide 21a displayed the highest antibacterial and antifungal activities with minimum inhibitory concentration (MIC) values lower than standard drugs chloramphenicol and clotrimazole, in the range of 62.5–125 and 2.9–7.8 µg/mL, respectively.

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Dyeing of hydrophobic fabrics with disperse dyes

Journal of the Serbian Chemical Society ◽

10.2298/jsc0106367m ◽

2001 ◽

Vol 66 (6) ◽

pp. 367-376 ◽

Cited By ~ 7

Author(s):

Hari Maradiya ◽

Vithal Patel

Keyword(s):

Absorption Spectroscopy ◽

Elemental Analysis ◽

Cellulose Triacetate ◽

Spectral Studies ◽

Disperse Dyes ◽

Fastness Properties ◽

Visible Absorption ◽

Dyed Fabrics ◽

Yellowish Orange ◽

Visible Absorption Spectroscopy

A series of disperse dyes has been synthesized by diazotisation of 2,6-dibromo-4-nitroaniline and coupled with various N-arylmaleimides. The dyes were characterized by IR spectral studies, visible absorption spectroscopy and elemental analysis. All the dyes were applied as disperse dyes on nylon, cellulose triacetate and polyester fabrics. These dyeswere found to give yellowish orange to deep brown shades with very good depth, levelness and brightness on different fabrics. The percentage dye bath exhaustion and fixation on fabrics were found to be very good. The light, washing, rubbing, perspiration and sublimation fastness properties of the dyed fabrics were found to be good to excellent.

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Synthesis and Antimicrobial Activity of 7-Hydroxy-3',4'-Methylenedioxy- and 7-Benzyloxy-3',4'-Methylenedioxy Flavanones

Journal of Scientific Research ◽

10.3329/jsr.v9i3.31229 ◽

2017 ◽

Vol 9 (3) ◽

pp. 297-306 ◽

Cited By ~ 1

Author(s):

R. Ali ◽

A. Rahim ◽

A. Islam

Keyword(s):

Antimicrobial Activity ◽

Antibacterial Activity ◽

Antifungal Activity ◽

Elemental Analysis ◽

The Other ◽

Antifungal Activities ◽

Fungal Strains ◽

Antibacterial And Antifungal Activities ◽

Other Hand ◽

Antibacterial And Antifungal

7-Hydroxy-3',4'-methylenedioxy- and 7-benzyloxy-3',4'-methylenedioxy flavanones have been synthesized starting from 2,4-dihydroxyacetophenone. Subsequently biocidal activities of the flavanones have been investigated along with their corresponding chalcones against some bacterial and fungal strains. 2'-Hydroxy-4'-benzyloxy-3,4-methylenedioxy chalcone (5) and its corresponding flavanone (7) showed good antibacterial and antifungal activities against some selected bacterial and fungal strains. On the other hand, 2',4'-dihydroxy-3,4-methylenedioxy chalcone (4) showed no antibacterial and antifungal activities while its corresponding flavanone (6) showed a little antibacterial activity only at higher concentration but did not show antifungal activity. The synthesized chalcones and flavanones have been characterized using UV-Vis, IR and 1H NMRspectral data together with elemental analysis.

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Synthesis and Antimicrobial Activity of Pyrimidine Salts with Chloranilic and Picric Acids

Journal of Chemistry ◽

10.1155/2013/727182 ◽

2013 ◽

Vol 2013 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

C. Mallikarjunaswamy ◽

D. G. Bhadregowda ◽

L. Mallesha

Keyword(s):

Antimicrobial Activity ◽

The Other ◽

Spectral Studies ◽

H Nmr ◽

Antibacterial And Antifungal Activities ◽

Elemental Analyses ◽

Ft Ir ◽

Uv Visible ◽

Antibacterial And Antifungal

Pyrimidine salts such as 2-methyl-5-nitro-phenyl-(4-pyridin-3-yl-pyrimidin-2-yl)-amine (1) and 4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-yl-amino)-phenyl-amine (2) with chloranilic and picric acids were synthesized, and theirin vitroantibacterial and antifungal activities were evaluated. The synthesized compounds were characterized by elemental analyses, UV-visible, FT-IR, and1H NMR spectral studies. Compound2aexhibited good inhibition towards antimicrobial activity compared to the other compounds.

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Synthesis and Biological Evaluation of 2-(3-Methyl-2-oxoquinoxalin-1(2H)-yl)-N'-(substituted phenyl-methyledene/ethylidene)acetohydrazides

E-Journal of Chemistry ◽

10.1155/2010/543125 ◽

2010 ◽

Vol 7 (4) ◽

pp. 1435-1439 ◽

Cited By ~ 1

Author(s):

Gopal Krishna Rao ◽

R. B. Kotnal ◽

P. N. Sanjay Pai

Keyword(s):

Antimicrobial Activity ◽

Minimum Inhibitory Concentration ◽

Inhibitory Concentration ◽

Aromatic Aldehydes ◽

Biological Evaluation ◽

Spectral Studies ◽

Antibacterial And Antifungal Activities ◽

Quinoxaline Derivatives ◽

Antibacterial And Antifungal ◽

Synthesis And Biological Evaluation

A series of quinoxaline derivatives was prepared and evaluated for antitubercular, antibacterial and antifungal activities. The title compounds were prepared by condensation of substituted aromatic aldehydes and substituted acetophenones with 2-(3-methyl-2-oxoquinoxalin-1(2H)-yl) acetohydrazide. Structures of all these compounds were confirmed by their spectral studies. Among synthesized compounds (4r, 4t, 4u, 4wand4x) have shown good anti tubercular activity (25 µg mL-1) when compared to reference drugs pyrazinamide (10 µg mL-1) and streptomycin (7.5 µg mL-1). In this study, few derivatives showed broad spectrum of antimicrobial activity at low concentration. The MICs (Minimum inhibitory concentration) of some compounds are 2-4 µg mL-1.

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Synthesis and Antimicrobial Activity of Some Novel Substituted Piperazinyl-quinazolin-3(4H)-ones

E-Journal of Chemistry ◽

10.1155/2008/410157 ◽

2008 ◽

Vol 5 (1) ◽

pp. 23-33 ◽

Cited By ~ 3

Author(s):

N. M. Raghavendra ◽

P. P. Thampi ◽

P. M. Gurubasavarajaswamy

Keyword(s):

Antimicrobial Activity ◽

Spectral Data ◽

Elemental Analysis ◽

Single Step ◽

Mass Spectral Data ◽

Antifungal Activities ◽

Mass Spectral ◽

Antibacterial And Antifungal Activities ◽

Antibacterial And Antifungal ◽

Single Step Reaction

Several substituted-quinazolin-3(4H)-ones were synthesized by condensation of 2-chloro-N-(4-oxo-substituted-quinazolin-3(4H)-yl)-acetamides with various substituted piperazines through single step reaction. Elemental analysis, IR,1HNMR and mass spectral data confirmed the structure of the newly synthesized compounds. Synthesized quinazolin-4-one derivatives were investigated for their antibacterial and antifungal activities.

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Synthesis and application of 2-aminothiadiazole disperse dyes for nylon fabrics

Journal of the Serbian Chemical Society ◽

10.2298/jsc0102087r ◽

2001 ◽

Vol 66 (2) ◽

pp. 87-93

Author(s):

Maradiya Raghav ◽

Vithal Patel

Keyword(s):

Elemental Analysis ◽

Spectral Studies ◽

Disperse Dyes ◽

Fastness Properties ◽

Light Fastness ◽

Nylon Fabric ◽

Wide Range

Some disperse dyes based on 2-amino-5-mercapto-1,3,4-thiadiazole have been prepared by coupling with various N-arylacrylamides. The dyes were characterized by IR spectral studies and elemental analysis. All the dyes were applied as disperse dyes on nylon fabric. These dyes have been found to give a wide range of color shades with very good depth and levelness on fabrics. The percentage dye bath exhaustion and fixation on the fabric have been found to be very good. The dyied fabrics showed moderate to good light fastness and very good to excellent washing, rubbing, persperation and sublimation fastness properties.

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Synthesis, Physicochemical Properties and Antimicrobial Activities of Nickel(II) Complexes of 4,4,4-Trifluoro-1-(2-Naphthyl)-1,3-Butanedione and Their Adducts

International Journal of Chemistry ◽

10.5539/ijc.v10n4p1 ◽

2018 ◽

Vol 10 (4) ◽

pp. 1

Author(s):

Helen Oluwatola Omoregie

Keyword(s):

Antimicrobial Activity ◽

Magnetic Susceptibility ◽

Physicochemical Properties ◽

Elemental Analysis ◽

Antimicrobial Activities ◽

Octahedral Geometry ◽

Spectral Measurements ◽

Antifungal Activities ◽

Antibacterial And Antifungal Activities ◽

Antibacterial And Antifungal

Nickel(II) complex of 4,4,4-trifluoro-1-(2-Naphthyl)-1,3-butanedione(tfnb) and its 2,2′-bipyridine (bipy), ethylenediamine (en) and 1,10-phenanthroline (phen) adducts were synthesized and characterized by elemental analysis, infrared, electronic spectral, magnetic susceptibility measurements and antimicrobial activities. Three other nickel(II) compounds were synthesized along with these compounds. The bands in the 1651-1513 cm-1 have been assigned as ν(C=O) + ν(C=C). The infrared and electronic spectral measurements are indicative of a probable six-coordinate octahedral geometry for all the nickel(II) complexes and adducts. The antimicrobial activity shows that [Ni(tfnb)2]2H2O complex and its adducts have no antibacterial and antifungal activities.

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Chemical Composition and Antimicrobial Activity of the Essential Oil from Flowers of Eryngium triquetrum (Apiaceae) Collected Wild in Sicily

Natural Product Communications ◽

10.1177/1934578x1601100737 ◽

2016 ◽

Vol 11 (7) ◽

pp. 1934578X1601100

Author(s):

Simona Casiglia ◽

Maurizio Bruno ◽

Sergio Rosselli ◽

Felice Senatore

Keyword(s):

Antimicrobial Activity ◽

Chemical Composition ◽

Essential Oil ◽

Antifungal Activities ◽

Antibacterial And Antifungal Activities ◽

Art Works ◽

Main Components ◽

Antibacterial And Antifungal ◽

Historical Art

The chemical composition of the essential oil from flowers of Eringium triquetrum Vahl. collected in Sicily was evaluated by GC and GC-MS. The main components were pulegone (50.6%), piperitenone (30.5%) and menthone (7.0%). Comparison of this oil with other studied oils of Eringium species is discussed. The oil showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

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Phytochemical investigation and in vitro antimicrobial activity of Richardia scabra

Bangladesh Journal of Pharmacology ◽

10.3329/bjp.v11i2.24666 ◽

2016 ◽

Vol 11 (2) ◽

pp. 248 ◽

Cited By ~ 1

Author(s):

Kathirvel Poonkodi ◽

Subban Ravi

Keyword(s):

Antimicrobial Activity ◽

Diffusion Method ◽

Bacterial Strains ◽

Weed Species ◽

Antibacterial And Antifungal Activities ◽

Agar Plug ◽

Phytochemical Investigation ◽

Antibacterial And Antifungal ◽

Simple Sugar

The present study was aimed to evaluate the phytochemical screening and antimicrobial activity of the petroleum ether and methanol extracts from the mature leaves of Richardia scabra from India. Disc diffusion method was used to determine the zone inhibition of the tested samples for antibacterial and agar plug method was used to determine the antifungal activity, while the microtube-dilution technique was used to determine the minimum inhibitory concentration. Both extracts showed significant antibacterial and antifungal activities when tested against 10 bacterial and four fungal strains. The minimum inhibitory concentrations of the methanol extract of R. scabra ranged between 12.5–100 μg/mL for bacterial strains. Alkaloids, steroids, flavonoids, fatty acids, terpenoids and simple sugar were detected as phytoconstituents of extracts. To the best of our knowledge, this is the first report against antimicrobial activity of common weed species R. scabra found in India.

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