Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O

An efficient synthesis of a new series of 5-amino-7-aryl-6-cyano-4H-pyrano[3,2-b]pyrrole derivatives from the reaction of 3-hydroxypyrrole, malononitrile, and various aromatic aldehydes using ZrOCl2·8H2O, an environmentally friendly catalyst under a thermal solvent-free green procedure is described....

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Main Authors: A. Mohammed Hussain, S. Sheik Mansoor, K. Aswin, K. Logaiya, S. P.N. Sudhan
Format: Article
Language:English
Published: Chemical Society of Ethiopia 2014-01-01
Series:Bulletin of the Chemical Society of Ethiopia
Subjects:
Online Access:http://www.ajol.info/index.php/bcse/article/view/100117
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spelling doaj-be5248dc275044a08da3a5491743767c2020-11-24T23:44:18ZengChemical Society of EthiopiaBulletin of the Chemical Society of Ethiopia1011-39241726-801X2014-01-012819110010.4314/bcse.v28i1.11Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2OA. Mohammed HussainS. Sheik MansoorK. AswinK. LogaiyaS. P.N. SudhanAn efficient synthesis of a new series of 5-amino-7-aryl-6-cyano-4H-pyrano[3,2-b]pyrrole derivatives from the reaction of 3-hydroxypyrrole, malononitrile, and various aromatic aldehydes using ZrOCl2·8H2O, an environmentally friendly catalyst under a thermal solvent-free green procedure is described. This simple protocol offer advantages such as shorter reaction times, simple work-up and excellent yield. The catalyst ZrOCl2·8H2O can be reused. The reusability of the catalyst has been studied for the synthesis of 5-amino-7-aryl-6-cyano-4H-pyrano[3,2-b]pyrrole. All the compounds were screened for their antibacterial and antifungal activity. DOI:http://dx.doi.org/10.4314/bcse.v28i1.11http://www.ajol.info/index.php/bcse/article/view/100117ZrOCl2·8H2OPyranopyrroleMalononitrile3-HydroxypyrroleSolvent-free
collection DOAJ
language English
format Article
sources DOAJ
author A. Mohammed Hussain
S. Sheik Mansoor
K. Aswin
K. Logaiya
S. P.N. Sudhan
spellingShingle A. Mohammed Hussain
S. Sheik Mansoor
K. Aswin
K. Logaiya
S. P.N. Sudhan
Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
Bulletin of the Chemical Society of Ethiopia
ZrOCl2·8H2O
Pyranopyrrole
Malononitrile
3-Hydroxypyrrole
Solvent-free
author_facet A. Mohammed Hussain
S. Sheik Mansoor
K. Aswin
K. Logaiya
S. P.N. Sudhan
author_sort A. Mohammed Hussain
title Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
title_short Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
title_full Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
title_fullStr Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
title_full_unstemmed Synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4H- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable ZrOCl2•8H2O
title_sort synthesis and in vitro antimicrobial evaluation of 5-amino-7-aryl-6-cyano-4h- pyrano[3,2,b]pyrrole derivatives catalyzed by reusable zrocl2•8h2o
publisher Chemical Society of Ethiopia
series Bulletin of the Chemical Society of Ethiopia
issn 1011-3924
1726-801X
publishDate 2014-01-01
description An efficient synthesis of a new series of 5-amino-7-aryl-6-cyano-4H-pyrano[3,2-b]pyrrole derivatives from the reaction of 3-hydroxypyrrole, malononitrile, and various aromatic aldehydes using ZrOCl2·8H2O, an environmentally friendly catalyst under a thermal solvent-free green procedure is described. This simple protocol offer advantages such as shorter reaction times, simple work-up and excellent yield. The catalyst ZrOCl2·8H2O can be reused. The reusability of the catalyst has been studied for the synthesis of 5-amino-7-aryl-6-cyano-4H-pyrano[3,2-b]pyrrole. All the compounds were screened for their antibacterial and antifungal activity. DOI:http://dx.doi.org/10.4314/bcse.v28i1.11
topic ZrOCl2·8H2O
Pyranopyrrole
Malononitrile
3-Hydroxypyrrole
Solvent-free
url http://www.ajol.info/index.php/bcse/article/view/100117
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