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 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).

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 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 .

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 Efficient Synthesis and Characterization of Anthracene based 1,3,5-Trisubstituted Pyrazoline Derivatives

2021 ◽  
Vol 33 (3) ◽  
pp. 600-604
Author(s):  
Thechano Merry ◽  
Prabhakar Maddela
Keyword(s):  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Benzoyl Chloride ◽  
Synthesis And Characterization ◽  
Efficient Synthesis ◽  
Analysis Methods

A new series of anthracene scaffold containing 1,3,5-trisubstituted pyrazoline derivatives (3a-p) were synthesized and well characterized by 1H NMR, 13C NMR, FTIR, mass spectroscopic and elemental analysis methods. The reactions were carried out from anthracenyl pyrazolines (1a-p) and benzoyl chloride (2) in presence of anhydrous K2CO3 in acetone under reflux conditions for 2-7 h. The obtained yields were good to excellent (80-94%).

scholarly journals Synthesis and characterization of some 1,2,4-triazole-3(4h)-thiones obtained from intramolecular cyclization of new 1-(4-(4-x-phenylsulfonyl)benzoyl)-4-(4-iodophenyl)- thiosemicarbazides

2010 ◽  
Vol 75 (11) ◽  
pp. 1463-1471 ◽  
Author(s):  
Olga Cretu ◽  
Stefania Barbuceanu ◽  
Gabriel Saramet ◽  
Constantin Draghici
Keyword(s):  
Benzoic Acid ◽  
1H Nmr ◽  
Intramolecular Cyclization ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Spectral Methods ◽  
Heterocyclic Compounds ◽  
Synthesis And Characterization ◽  
Naoh Solution

This paper presents new heterocyclic compounds from the class of 1,2,4-triazole-3(4H)-thione which were obtained by intramolecular cyclization, in basic media of the some acylthiosemicarbazides containing diphenylsulfone moieties. The new 1-(4-(4-X-phenylsulfonyl)benzoyl)-4- (4-iodophenyl)-thiosemicarbazides (7a-c) were obtained by the reaction of 4-(4-X-phenylsulfonyl)-benzoic acid hydrazides (6a-c) (X=H, Cl or Br) with 4-iodophenylisothiocyanate. The cyclization of the acylthiosemicarbazides 7a-c in the presence of an 8 % NaOH solution resulted in the formation of the new 5-(4-(4-X-phenylsulfonyl)phenyl)-4-(4-iodophenyl)-2H-1,2,4-triazole-3(4H)-thiones (8a-c). The structures of the newly synthesized compounds were elucidated by spectral methods (IR, UV-Vis, 1H-NMR, 13C-NMR and MS spectroscopy) and elemental analysis.

Synthesis and Spectral Characterization of New S-Alkylated 1,2,4-Triazoles as Potential Biological Agents

2017 ◽  
Vol 68 (10) ◽  
pp. 2436-2439
Author(s):  
Stefania Felicia Barbuceanu ◽  
Laura Ileana Socea ◽  
Constantin Draghici ◽  
Elena Mihaela Pahontu ◽  
Theodora Venera Apostol ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Spectral Data ◽  
1H Nmr ◽  
Elemental Analysis ◽  
13C Nmr ◽  
Ethyl Bromide ◽  
Spectral Characterization ◽  
Basic Medium ◽  
Phenacyl Bromide

In the work we presented the behavior of 5-(4-(4-X-phenylsulfonyl)phenyl)-4-(n-propyl)-2H-1,2,4-triazole-3(4H)-thiones (X= Cl or Br) with some alkylation agents. Thus, new S-alkylated 1,2,4-triazole derivatives were synthesized by reaction of the corresponding 1,2,4-triazole-3-thione derivatives with different �-halogenated compounds (ethyl bromide, ethyl chloroacetate or phenacyl bromide), in basic medium. The structures of synthesized compounds were elucidated by spectral data (1H-NMR, 13C-NMR, mass spectrometry) and elemental analysis.

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 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.

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