scholarly journals Synthesis, Characterization and Chelating Properties of 4-Butyrylsemicarbazone-1-phenyl-3-methyl-2-pyrazolin-5-one

2010 ◽  
Vol 7 (2) ◽  
pp. 357-362 ◽  
Author(s):  
J. D. Patel ◽  
P. J. Shah

4-Butyrylsemicarbazone-1-phenyl-3-methyl-2-pyrazolin-5-one (BUMP-SC) was prepared and its metal chelates of Cu2+, Ni2+, Co2+, Mn2+, Fe2+, Fe3+, Cr3+, UO2and OV were prepared. The ligands and its chelates were characterized by elemental analysis, metal:ligand (M:L) stoichiometry, IR-electronic spectral studies and magnetic properties. The compounds also were screened for their antimicrobial activity.

2009 ◽  
Vol 6 (2) ◽  
pp. 371-376 ◽  
Author(s):  
H. S. Patel ◽  
K. K. Oza

5-Chloromethyl-8-quinolinol was condensed stoichiometrically with benzotriazole in presence of potassium carbonate. The resulting 5-[1(H)-benzo triazole methylene]-8-quinolinol (BTMQ) was characterized by elemental analysis and spectral studies. The transition metal chelatesviz. Cu2+, Ni2+, Co3+, Mn2+and Zn2+of BTMQ were prepared and characterized by metal-ligand (M:L) ratio, IR and reflectance spectral studies and magnetic properties. The antifungal activity of BTMQ and its metal chelates was screened against various fungi. The results show that all these samples are good antifungal agents.


2009 ◽  
Vol 6 (4) ◽  
pp. 1247-1252 ◽  
Author(s):  
A. U. Patel

4-N,N-Diethylamino sulfonyl phenyl amine was synthesized by diazotization and coupled with 8-hydroxyquinoline. The resultant 5-(4-N,N-diethylamino sulfonyl phenyl azo)-8-hydorxy quinoline (DSAQ) was characterized by elemental analysis and spectral studies. The transition metal chelatesviz. Cu2+, Ni2+, Co2+, Mn2+and Zn2+of DSAQ were prepared and characterized by metal-ligand (M:L) ratio. IR and reflectance spectroscopy and magnetic properties. The anti fungal activity of DSAQ and its metal chelates was screened against various fungi. The results show that all these samples are good antifungal agents.


2009 ◽  
Vol 6 (4) ◽  
pp. 1017-1022 ◽  
Author(s):  
Divyesh K. Patel ◽  
Arun Singh

5-Chloromethyl-8-quinolinol was condensed stoichiometrically with 5-(4-chlorophenyl)-(1,3,4) thiadiazol-2-ylamine in the presence of sodium bicarbonate. The resulting 5-[4-chlorophenyl-(1,3,4)thiadiazol-2-ylamino methylene]-8-quinolinol (CTAQ) was characterized by elemental analysis and spectral studies. The transition metal chelatesviz. Cu2+, Ni2+, Co2+, Mn2+and Zn2+of CTAQ were prepared and characterized by metal-ligand (M:L) ratio, IR and reflectance spectroscopies and magnetic properties. The antifungal activity of CTAQ and its metal chelates was screened against various fungi. The results show that all these samples are good antifungal agents.


2006 ◽  
Vol 3 (3) ◽  
pp. 110-116 ◽  
Author(s):  
I. J. Patel ◽  
I. M. Vohra

5-Chloromethyl-8-quinolinol was condensed with 4-methyl piperazine in presence of sodium bicarbonate. The resulting 5-(4-methyl piper-azinylmethylene)-8-quinolinol (MPQ) was characterized by elemental analysis and spectral studies. The transition metal chelatesvizCu+2, Ni+2, Co+2, Mn+2, Zn+2, Cd+2, and Fe+3of MPQ were prepared and characterized by metal-ligand (M:L) ratio, IR and reflectance spectroscopies and magnetic properties. The antifungal activity of MPQ and its metal chelates was screened against various fungi. The results show that all these samples are good antifungal agents.


2010 ◽  
Vol 7 (3) ◽  
pp. 775-778
Author(s):  
Nalin P. Patani ◽  
M. V. Hathi

The Schiff base complexes derived from 2-furancarboxaldehyde and N-methyl-2-amino phenol have been prepared and characterized using several physical techniques, like elemental analysis, thermogravimetric analysis, magnetic moment measurements, infrared and resonance spectra.N-Methyl-2-amino phenol was condensed stoichiometrically with 2-furancarboxaldehyde in presence of methanol. The resulting 1,7-di(2-hydroxyphenyl) 1,7 di(N-methyl) aza-1,3,5 heptarine-3-ol hydrochloride was characterized by elemental analysis and spectral studies. The transition metal complexes of Cu2+, Zn2+, Ni2+, Co2+and Mn2+of the synthesized complexes were prepared. Metal ligand (M:L) ratio, IR, reflectance spectral studies, magnetic properties and antimicrobial activity of the synthesized complexes and its metal complexes were carried out.


2010 ◽  
Vol 7 (s1) ◽  
pp. S520-S526
Author(s):  
Aradhana Verma ◽  
S. A. Iqbal ◽  
Arun Singh ◽  
Liviu Mitu

5-Chloromethyl-8-quinolinol hydrochloride was condensed with 1-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-ol in presence of potassium carbonate. The resulting 5-((1-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-yloxy)methyl)quinolin-8-ol was characterized by elemental analysis and spectral studies. The transition metal chelates of the same were prepared with Cu2+, Ni2+, Co2+, Mn2+and Zn2+and characterized by IR and electronic spectral studies and magnetic properties. The antimicrobial activity of ligand and its metal chelates were screened against various gram positive and gram negative organisms. The results show that all these samples are more or less active agents against various organisms.


2019 ◽  
Vol 31 (5) ◽  
pp. 1087-1090 ◽  
Author(s):  
Pradip P. Deohate ◽  
Roshani S. Mulani

Microwave irradiative synthesis of triazine substituted pyrazoles i.e. (4-benzylideneamino-6-methyl-[1,3,5]-triazin-2-yl)-(5-methyl-2-substituted benzoyl/isonicotinoyl/cinnamoyl-pyrazol-3-yl)-amines have been achieved by the cyclocondensation of N-(4-benzylideneamino-6-methyl-[1,3,5]-triazin-2-yl)-3-oxo butyramide with substituted acid hydrazides. Synthesis of required butyramide was done by reacting 2,4-diamino-6-methyl-[1,3,5]-triazine with benzaldehyde and then condensing the product with ethyl acetoacetate. Structural investigation of synthesized compounds has been done by chemical transformation, elemental analysis and IR, 1H NMR, mass spectral studies. Study of antitubercular and antimicrobial activity of title compounds against some selected Gram-positive and Gram-negative microorganisms was performed to establish the relationship between structure and activity of compound.


2010 ◽  
Vol 7 (3) ◽  
pp. 745-750 ◽  
Author(s):  
K. Narasimha Sarma ◽  
M. C. S. Subha ◽  
K. Chowdoji Rao

The title compounds (7a-h) were prepared by esterification of indole-5-carboxylic acid (1) and subsequent treatment with hydrazine hydrate in methanolviathe hydrazide (3). Finally hydrazide (3) condensed with different substituted aldol (6) in acetic acid / PTSA catalytic media produced (3,5-subsituted-4,5-dihydropyrazol-1-yl)(1H-indol-5-yl)methanone (7a-h) in good yields. All the newly synthesized compounds are by elemental analysis and spectral studies and evaluated for antimicrobial activities.


2011 ◽  
Vol 8 (1) ◽  
pp. 443-448 ◽  
Author(s):  
R. H. Patel ◽  
B. L. Hiran

The ligand, 2-(2-furanylmethylaminocarbonyl)benzoic acid (FMBA) and it’s transition metal complexes have been synthesized and characterized by elemental analysis, spectral studies, magnetic moments and thermal studies. The antifungal activity of all the samples was monitored against common fungi.


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
S. K. Zadafiya ◽  
J. H. Tailor ◽  
G. M. Malik

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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