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Synthesis, Characterization and Antimicrobial Activity of Some Schiff Bases of 2-amino-4-(4-chlorophenyl)–n-(3-furan-2-ylmethyl carboxamido) thiophenes


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1 Department of Pharmaceutical Chemistry, PES College of Pharmacy, Bangalore-50, Karnataka, India
     

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2-amino-4-(4-chlorophenyl)-N-(3-furan-2-ylmethyl carboxamido) thiophenes was synthesized using versatile Gewald reaction .First step is preparation of furfuryl cyanoacetamide which was carried out by condensation of furfuryl amine and ethyl cyano acetate which was then reacted with p-chloro acetophenone, sulphur, diethyl amine to give 2-amino-4-(4- chlorophenyl)-N-(3-furan-2-yl methyl carboxamido) thiophene (SM-4) later the compound was treated with twelve different substituted aryl aldehydes to yield twelve new Schiff bases(SM 4a-4l). The compounds were characterized IR, 1H NMR and mass spectral data and screened for antimicrobial activity.

Keywords

Synthesis, Thiophenes, Schiff Bases, Spectral Analysis, Antimicrobial Activity
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  • Synthesis, Characterization and Antimicrobial Activity of Some Schiff Bases of 2-amino-4-(4-chlorophenyl)–n-(3-furan-2-ylmethyl carboxamido) thiophenes

Abstract Views: 376  |  PDF Views: 5

Authors

Monica Arora
Department of Pharmaceutical Chemistry, PES College of Pharmacy, Bangalore-50, Karnataka, India
J. Saravanan
Department of Pharmaceutical Chemistry, PES College of Pharmacy, Bangalore-50, Karnataka, India
S. Mohan
Department of Pharmaceutical Chemistry, PES College of Pharmacy, Bangalore-50, Karnataka, India
Shivaji Bhattacharjee
Department of Pharmaceutical Chemistry, PES College of Pharmacy, Bangalore-50, Karnataka, India

Abstract


2-amino-4-(4-chlorophenyl)-N-(3-furan-2-ylmethyl carboxamido) thiophenes was synthesized using versatile Gewald reaction .First step is preparation of furfuryl cyanoacetamide which was carried out by condensation of furfuryl amine and ethyl cyano acetate which was then reacted with p-chloro acetophenone, sulphur, diethyl amine to give 2-amino-4-(4- chlorophenyl)-N-(3-furan-2-yl methyl carboxamido) thiophene (SM-4) later the compound was treated with twelve different substituted aryl aldehydes to yield twelve new Schiff bases(SM 4a-4l). The compounds were characterized IR, 1H NMR and mass spectral data and screened for antimicrobial activity.

Keywords


Synthesis, Thiophenes, Schiff Bases, Spectral Analysis, Antimicrobial Activity

References