scholarly journals Synthesis and characterization of some new coordination compounds of boron with mixed azines

2007 ◽  
Vol 72 (4) ◽  
pp. 367-374 ◽  
Author(s):  
Manish Godara ◽  
R. Maheshwari ◽  
S. Varshney ◽  
A.K. Varshney
Keyword(s):  
Antifungal Activity ◽  
1H Nmr ◽  
Coordination Compounds ◽  
Spectral Studies ◽  
Synthesis And Characterization ◽  
Elemental Analyses ◽  
Boron Complexes ◽  
11B Nmr

Some new boron complexes have been synthesized by the reaction of triisopropohxyborane with the mixed azines, prepared by the condensation of salicylaldehyde and hydrazine with aldehydes/ketones in a 1:1:1 mole ratio to give a new series of (OPri)2B(NO) type of complexes. Their structures were confirmed on the basis of elemental analyses, ultraviolet, infrared, 1H-NMR and 11B-NMR spectral studies. The ligands and their boron complexes were also screened for their antifungal activity. Several of these complexes were found to be quite active in this respect. .

Synthesis and Characterization of Some 4- Substituted Thiazolidinone Derivatives

2019 ◽  
Vol 10 (04) ◽  
pp. 631-636
Author(s):  
Zainab Ryad Magtoof ◽  
Mahmood Shakir Magtoof
Keyword(s):  
Schiff Bases ◽  
1H Nmr ◽  
13C Nmr ◽  
Mercaptoacetic Acid ◽  
Spectral Studies ◽  
Synthesis And Characterization

This study is concerned with the synthesis and characterization of 4-thiazolidinone derivatives (3a-3e). These compounds were prepared by reacting mercaptoacetic acid with the appropriate Schiff bases (imines) by heating at 50-60 °C in chloroform with moderate yields (51- 75 %). The structures of these 4-thiazolidinone derivatives were established on the basis of spectral studies using IR, 1H-NMR, 13C-NMR, and13C-NMR DEPT .

scholarly journals Synthesis and characterization of 2,3,13,14-tetramethyl (ethyl or p-tolyl)- 1,4,12,15-tetraazacyclodocosa-1,3,12,14-tetraene complexes of Mg(II), Ca(II), Sr(II) and Ba(II)

2002 ◽  
Vol 67 (7) ◽  
pp. 523-530 ◽  
Author(s):  
Raghu Prasad ◽  
Seema Gupta
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
Membered Ring ◽  
Spectral Studies ◽  
Synthesis And Characterization

2+2 Cyclocondensation of 1,7-diaminoheptane with ?-diketones, viz 2,3-butanedione, 3,4-hexanedione or 4,4?-dimethylbenzil, in the presence of Mg2+, Ca2+, Sr2+ and Ba2+ ions as templates yields a series of complexes of the type [ML(X2)](where L = N4 macrocycle having a 22-membered ring and X=Cl or NCS). The resulting complexes were characterized by elemental analysis conductance measurements and IR and 1H-NMR spectral studies.

scholarly journals The synthesis and characterization of some novel 5-chloro-2-(substituted alkoxy)-N-phenylbenzamide derivatives

2009 ◽  
Vol 74 (8-9) ◽  
pp. 847-855 ◽  
Author(s):  
Ioana Ienaşcu ◽  
Alfa Lupea ◽  
Iuliana Popescu ◽  
Mirabela Pădure ◽  
Alina Zamfir
Keyword(s):  
1H Nmr ◽  
13C Nmr ◽  
Methyl Ketone ◽  
Ethyl Esters ◽  
Biologically Active ◽  
Synthesis And Characterization ◽  
Ethyl Methyl ◽  
Elemental Analyses ◽  
Ethyl Methyl Ketone

To obtain biologically active compounds, the synthesis of some new derivatives with an o-hydroxybenzamide structure was performed. The ethyl esters 4-6 were obtained by the reaction of 5-chloro-2-hydroxy-N-phenylbenzamide and chloro-substituted acid ethyl esters 1-3 in ethyl methyl ketone. The obtained ethyl esters were condensed with hydrazine yielding the hydrazides 7-8. The hydrazones 11-14 were obtained by the reaction of the hydrazides and the chloro-substituted benzaldehydes 9-10. All the newly synthesized compounds were characterized by FTIR, 1H-NMR, 13C-NMR, MS and elemental analyses.

scholarly journals Synthesis and characterization of barbitones as antimicrobial agents

2006 ◽  
Vol 71 (6) ◽  
pp. 587-591 ◽  
Author(s):  
H.G. Sangani ◽  
K.B. Bhimani ◽  
R.C. Khunt ◽  
A.R. Parikh
Keyword(s):  
Antimicrobial Activity ◽  
Barbituric Acid ◽  
Antimicrobial Agents ◽  
Spectral Studies ◽  
Synthesis And Characterization ◽  
Mass Spectral ◽  
Elemental Analyses ◽  
Bacteria And Fungi

Barbitones (3) were synthesised by the condensation of chalcones (2) with barbituric acid. The structure of the synthesized compounds were assigned on the basis of elemental analyses, IR, NMR and mass spectral studies. All the products were evaluated for their in vitro antimicrobial activity against various strains of bacteria and fungi.

Coordination Compounds of Some 3d-Transition Metal Ions with N1-[4-(4-bromo-phenylsulfonyl)-benzoyl]-N4-(4-methoxyphenyl)- thiosemicarbazide

2008 ◽  
Vol 59 (7) ◽  
Author(s):  
Madalina Angelusiu ◽  
Maria Negoiu ◽  
Stefania-Felicia Barbuceanu ◽  
Tudor Rosu
Keyword(s):  
Coordination Compounds ◽  
Magnetic Moments ◽  
Thermo Gravimetric Analysis ◽  
Electronic Spectroscopy ◽  
Transition Metal Ions ◽  
Synthesis And Characterization ◽  
Gravimetric Analysis ◽  
Thermo Gravimetric ◽  
New Compounds

The paper presents the synthesis and characterization of Cu(II), Co(II), Ni(II), Cd(II), Zn(II) and Hg(II) complexes with N1-[4-(4-bromo-phenylsulfonyl)-benzoyl]-N4-(4-methoxyphenyl)-thiosemicarbazide. The new compounds were characterized by IR, EPR, electronic spectroscopy, magnetic moments, thermo-gravimetric analysis and elemental analysis.

Synthesis and characterization of novel chiral derivatizing agents containing β-keto-anthracene adducts (KAAs) by 1H-NMR: aromatic influence and chiral alcohol absolute configuration determination

2019 ◽  
Vol 17 (3) ◽  
pp. 541-554
Author(s):  
Neeranuth Intakaew ◽  
Puracheth Rithchumpon ◽  
Chanatkran Prommin ◽  
Saranphong Yimklan ◽  
Nawee Kungwan ◽  
...  
Keyword(s):  
1H Nmr ◽  
Absolute Configuration ◽  
Synthesis And Characterization ◽  
Chiral Alcohols ◽  
Chiral Alcohol ◽  
Aromatic Rings ◽  
H Nmr ◽  
Chiral Derivatizing Agents

New chiral derivatizing agents and the effect of aromatic rings were investigated for absolute configuration of chiral alcohols via1H-NMR.

Synthesis and Characterization of Boron Complexes of Imidazo[1,5-a]pyridylalkyl Alcohols

2013 ◽  
Vol 42 (8) ◽  
pp. 828-830 ◽  
Author(s):  
Toshiaki Murai ◽  
Eri Nagaya ◽  
Keitaro Miyahara ◽  
Fumitoshi Shibahara ◽  
Toshifumi Maruyama
Keyword(s):  
Synthesis And Characterization ◽  
Boron Complexes

Synthesis and Characterization of N-butyl-N-methylimidazolium- D-(-)-tartrate Chiral Ionic Liquid

2012 ◽  
Vol 518-523 ◽  
pp. 3989-3992 ◽  
Author(s):  
Yang Zhang ◽  
Xiao Hua Tu ◽  
Cheng Ping Miao ◽  
Jian Yi Wu
Keyword(s):  
Ionic Liquid ◽  
1H Nmr ◽  
Ion Chromatography ◽  
13C Nmr ◽  
Nmr Spectra ◽  
Optical Rotation ◽  
Synthesis And Characterization ◽  
13C Nmr Spectra ◽  
Chiral Ionic Liquid

A novel CIL of N-butyl-N-methyl imidazolium-D-(-)-tartrate has been designed and synthesized by neutralization reaction. Its structure was characterized by 1H-NMR and 13C-NMR spectra, the optical rotation was characterized by polarimeter with the value of-15.0º, and the purity was characterized by ion chromatography with the value of 98.4%.

scholarly journals The synthesis and characterization of some new diazoamino derivatives

2010 ◽  
Vol 16 (1) ◽  
pp. 89-95
Author(s):  
Mihaela Mocanu
Keyword(s):  
1H Nmr ◽  
Bioactive Compounds ◽  
Elemental Analysis ◽  
Analysis Data ◽  
Biological Properties ◽  
Synthesis And Characterization ◽  
Elemental Analysis Data ◽  
Spectral Measurements ◽  
Inflammatory Processes

The sulfonamidic moiety is much encountered in structures of bioactive compounds. In the present paper the studies on the sulfonamidated aryloxyalkylcarboxylic acids are extended by their attaching on certain substrata able to confer some special biological properties to the final products, such as anti-tumor and antioxidant actions useful in treating inflammatory processes, ulcer, convulsions and diabetes, as well as a herbicidal action. The stepwise syntheses of the sulfonamidated aryloxyalkylcarboxylic acid derivatives and their characterization by elemental analysis data and IR, 1H-NMR and UV-Vis spectral measurements are described. The newly obtained compounds could show potential pharmaceutical and herbicide properties.

scholarly journals Synthesis and Characterization of some New 1,3,4-Oxadiazole derivatives based on 4-amino benzoic acid

2016 ◽  
Vol 13 (4) ◽  
pp. 762-769
Author(s):  
Baghdad Science Journal
Keyword(s):  
Schiff Base ◽  
Benzoic Acid ◽  
Spectral Data ◽  
1H Nmr ◽  
Synthesis And Characterization ◽  
Oxadiazole Derivatives ◽  
Ft Ir ◽  
Amino Benzoic Acid

Various of 2,5- disubstituted 1,3,4-oxadiazole (Schiff base, ?- lactam and azo) were synthesized from 2,5-di (4,4?-amino-1,3,4-oxadiazole which usequently synth-esized from mixture of 4- amino benzoic acid and hydrazine arch of polyphosphorus acid. The synthesized compounds were cherecterized by using some spectral data (UV, FT-IR , and 1H-NMR)

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