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 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.

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 heterocyclic substituted fluoran compounds

2007 ◽  
Vol 72 (11) ◽  
pp. 1039-1044
Author(s):  
Sachin Patel ◽  
Manish Patel ◽  
Ranjan Patel
Keyword(s):  
Sulphuric Acid ◽  
1H Nmr ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
Spectroscopic Methods ◽  
Keto Acid ◽  
Visible Spectroscopy ◽  
Uv Visible ◽  
Quinazolinone Derivatives

New quinazolinone-substituted fluoran compounds were synthesized by reaction of keto acid, 2?-carboxy-2-hydroxy-4-N-pyrrolidinylbenzophenone with different quinazolinone derivatives in the presence of conc. sulphuric acid. All the synthesized fluoran compounds were characterized by spectroscopic methods (IR, 1H-NMR and UV-visible spectroscopy) and elemental analysis. The fluoran compounds are colorless or nearly colorless and develop color on contact with electron-accepting compounds.

scholarly journals Synthesis and Characterization of Derivatives Based on 4, - Dimercaptobiphenyl

2012 ◽  
Vol 9 (4) ◽  
pp. 703-712
Author(s):  
Baghdad Science Journal
Keyword(s):  
Schiff Bases ◽  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Synthesis And Characterization

Starting from 4, - Dimercaptobiphenyl, a variety of phenolic Schiff bases (methylolic, etheric, epoxy) derivatives have been synthesized. All proposed structure were supported by FTIR, 1H-NMR, 13C-NMR Elemental analysis all analysis were performed in center of consultation in Jordan Universty.

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 poly(coumarin-urethane)s

1994 ◽  
Vol 6 (3) ◽  
pp. 257-262
Author(s):  
D I Brahmbbatt ◽  
L Jayabalan ◽  
Harshad D Patel
Keyword(s):  
Molecular Weight ◽  
Elemental Analysis ◽  
Vapour Pressure ◽  
Condensation Reaction ◽  
Average Molecular Weight ◽  
Spectral Studies ◽  
Synthesis And Characterization ◽  
Molecular Weight Determination ◽  
Number Average Molecular Weight

Poly(coumarin-urethane)s (PCUs) were prepared by the condensation reaction of 3,3'-dihydroxy-6,6'-methylcnebiscoumarin (DHMBC) with various diisocyanates. All the poly(coumarin-urethane)s were characterized by elemental analysis, IR spectral studies, number average molecular weight determination (by vapour pressure osmometry), viscosity studies and thermogravimetry.

scholarly journals Synthesis And Characterization Of Some New Acetylenic Mannich Bases Based On Biphenyl – 4,4 - Dithiol

2013 ◽  
Vol 10 (3) ◽  
pp. 712-723
Author(s):  
Baghdad Science Journal
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Thiol Group ◽  
Mannich Bases ◽  
Synthesis And Characterization ◽  
Wide Field ◽  
Active Hydrogen ◽  
Microbial Study

One of the most important , compound which have active hydrogen is the compound possessing (thiol group) Biphenyl-4,4-dithiol is agood example utilized in a wide field for preparation mannich bases , avariety of new acetylenic mannich bases have been Synthesized and all proposed structure were Supported by FTIR , 1H – NMR, 13C-NMR , Elemental analysis and microbial study .

scholarly journals Synthesis and Characterization of New Pyrazolopyrimidine Derivatives Incorporated to Benzothiaazole

2021 ◽  
Vol 10 (3) ◽  
pp. 2429-2437
Keyword(s):  
Hydrazine Hydrate ◽  
Spectral Data ◽  
Methyl Iodide ◽  
1H Nmr ◽  
Elemental Analysis ◽  
Synthesis And Characterization ◽  
Phenyl Isothiocyanate

Reaction of 2-Amino-6-methyl benzothiazole with 1-cyano-acetyl-3,5-dimethylpyrazole afforded cyanoacetamide derivative (2). Compound 2 was used as the precursor for the synthesis of novel aminopyrazole derivative (5) by reaction with phenyl isothiocyanate and methyl iodide followed by addition of hydrazine hydrate. Treatment of aminopyrazole (5) with different reagents gave pyrazolopyrimidine derivatives (7-12). The newly synthesized compounds were characterized by elemental analysis and the use of spectral data (IR, 1H NMR, and MS).

Synthesis and Characterization of 4-(3′-Chlorophenylamino)-6-Methoxy Quinazoline Derivatives

2013 ◽  
Vol 634-638 ◽  
pp. 1215-1218
Author(s):  
He Ping Yan ◽  
Du Shu Huang ◽  
Ju Cheng Zhang
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Synthesis And Characterization ◽  
Quinazoline Derivatives

Five compounds of 4-(3-Chlorophenylamino)-6-methoxy quinazoline compounds, including 7-(3-(o-tolyloxy)propoxy)-N-(3-chlorophenyl)-6-methoxyquinazolin-4-amine,7-(3-(m-tolyloxy) propoxy)-N-(3-chlorophenyl)-6-methoxyquinazolin-4-amine,7-(3-(p-tolyloxy)propoxy)-N-(3-chlorophenyl)-6-methoxyquinazolin-4-amine,7-(3-(2,6-dimethylphenoxy)propoxy)-N-(3-chlorophenyl)-6-methoxyquinazolin-4-amine,7-(3-phenoxypropoxy)-N-(3-chlorophenyl)-6-methoxyquinazolin-4-amine,were synthesized from N′-(5-(3-chloropropoxy)-2-cyano- 4-methoxyphenyl)- N, N-dimethylformamidine by cyclization，etheration, in the yield of 68.3%、53.8%、61.4%、75.6% and 87.4% respectively. Their structures were characterized by IR, 1H NMR, 13C NMR, MS and elemental analysis.

scholarly journals Synthesis and Characterization of New phenolic Schiff bases Derivatives Based on Terephthaladehyde

2013 ◽  
Vol 10 (3) ◽  
pp. 699-711
Author(s):  
Baghdad Science Journal
Keyword(s):  
Thermal Analysis ◽  
Schiff Bases ◽  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Synthesis And Characterization

A variety of new phenolic Schiff bases derivatives have been synthesized starting from Terephthaladehyde compound, all proposed structures were supported by FTIR, 1H-NMR, 13C-NMR, Elemental analysis, some derivatives evaluated by Thermal analysis (TGA).

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