scholarly journals Synthesis and Characterization of Benzylidene Derivatives of Benzothiazole

2021 ◽  
Vol 9 (VIII) ◽  
pp. 506-511
Author(s):  
Pallavi Dhakoniya
Keyword(s):  
Spectral Data ◽  
Synthesis And Characterization ◽  
Lawesson’S Reagent ◽  
Benzothiazole Derivatives ◽  
Lawesson's Reagent ◽  
Derivatives Of

A series of some novel benzothiazole derivatives were synthesized from the 2-(4-aminophenyl) benzothiazol-5-ol, which was synthesized by the Jacobson method using Lawesson’s reagent. Benzylidene derivatives (P201-P205) were synthesized by catalyzed condensation and acylation method,named as 2-(4-((4 hydroxybenzylidene)amino) phenyl) benzothiazole-5-ol (P201), 2-(4-((4- methoxybenzylidene) amino)phenyl)benzothiazole-5ol(P202),2-(4-((4-chlorobenzylidene) amino)phenyl)benzothiazole-5-ol(P203), (4-((furan-2-ylmethylene) amino)phenyl)benzothiazole-5-ol(P204), Dimethyl(4(5hydroxy benzothiazol2yl)phenyl)carbonimidodithioate(P205)The structures of the compounds were confirmed by NMR and IR spectral data.

scholarly journals Synthesis and Characterization of Some Trivalent and Tetravalent Derivatives of 2- Hydroxy-1-naphthoic Acid

2004 ◽  
Vol 1 (2) ◽  
pp. 110-114 ◽  
Author(s):  
Deepti Joshi ◽  
T. K. Joshi
Keyword(s):  
Spectral Data ◽  
Elemental Analysis ◽  
Molar Ratio ◽  
Synthesis And Characterization ◽  
Spectral Measurements ◽  
Mass Spectral ◽  
Naphthoic Acid ◽  
Derivatives Of

The trivalent derivatives (B, Al, As, Sb & Fe) and tetravalent derivatives (Si, Ti & Se) of 2-hydroxy-1-naphthoic acid have been prepared by the interaction of their corresponding isopropoxide with letter in different molar ratioviz. 1:3 &1:4 in benzene medium. The prepared compounds generally obtained as coloured solids and amongst them those containing isopropoxy groups were found to be hygroscopic. All these compound were characterized by azeotrope and elemental analysis as well as by IR, PMR and mass spectral measurements. These spectral data have facilitated in elucidating the mode of bonding of the said metals and non-metals in these compounds with 2-hydroxy-1-naphthoic acid.

The synthesis and characterization of new aminoadamantane derivatives of hexachloro-cyclo-triphosphazene

Polyhedron ◽  
2008 ◽  
Vol 27 (9-10) ◽  
pp. 2077-2082 ◽  
Author(s):  
Radka Kočí Voznicová ◽  
Jan Taraba ◽  
Jiří Příhoda ◽  
Milan Alberti
Keyword(s):  
Synthesis And Characterization ◽  
Derivatives Of

Synthesis and characterization of novel 2,5-diphenyl-1,3,4-oxadiazole derivatives of anthracene and its application as electron transporting blue emitters in OLEDs

2011 ◽  
Vol 161 (9-10) ◽  
pp. 869-880 ◽  
Author(s):  
M. Ananth Reddy ◽  
G. Mallesham ◽  
Anup Thomas ◽  
Kola Srinivas ◽  
V. Jayathirtha Rao ◽  
...  
Keyword(s):  
Synthesis And Characterization ◽  
Oxadiazole Derivatives ◽  
Blue Emitters ◽  
Derivatives Of

SYNTHESIS AND CHARACTERIZATION OF HETEROCYCLIC CHALCONES CONTAINING HALOGENATED THIOPHENES

2015 ◽  
Vol 77 (3) ◽  
Author(s):  
Helmi Mohammed Al-Maqtari ◽  
Joazaizulfazli Jamalis ◽  
Hasnah Mohd Sirat
Keyword(s):  
Sodium Hydroxide ◽  
Spectral Data ◽  
13C Nmr ◽  
Basic Medium ◽  
Synthesis And Characterization ◽  
Schmidt Reaction ◽  
Synthetic Compounds ◽  
1H And 13C Nmr ◽  
Heterocyclic Aldehydes

Heterocyclic chalcones containing halogenated thiophenes were synthesized. The first step was to synthesize 3-acetyl-2,5-dichlorothiophene and 2-acetyl-5-chlorothiophene as heterocyclic ketones by using Friedel-Crafts acylation. The ketones were then used to synthesize thiophene chalcones through Claisen-Schmidt reaction with the respective heterocyclic aldehydes such as 5-bromothiophene-2-carbaldehyde, 3-methyl-2-thiophene carboxaldehyde and 2-thiophene carboxaldehyde with 3-acetyl-2,5-dichlorothiophene or 2-acetyl-5-chlorothiophene in presence of basic medium, sodium hydroxide to form the corresponding chalcones. Structures of the synthetic compounds were confirmed by IR, MS, 1H and 13C NMR spectral data.

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