CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)

The one-pot multicomponent synthesis of 4,4'-arylmethylene-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) was performed effectively by tandem Knoevenagel-Michael reaction of aryl aldehydes and 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one in the presence of a catalytic amount of cellulose sulfuric aci...

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Autores principales: MOSADDEGH,ELAHEH, HASSANKHANI,ASADOLLAH, BAGHIZADEH,AMIN
Lenguaje:English
Publicado: Sociedad Chilena de Química 2010
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400001
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spelling oai:scielo:S0717-970720100004000012011-05-25CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)MOSADDEGH,ELAHEHHASSANKHANI,ASADOLLAHBAGHIZADEH,AMIN Cellulose sulfuric acid biopolymer 4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols) 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one environmentally friendly The one-pot multicomponent synthesis of 4,4'-arylmethylene-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) was performed effectively by tandem Knoevenagel-Michael reaction of aryl aldehydes and 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one in the presence of a catalytic amount of cellulose sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst at reflux conditions. All of obtained compounds were characterized by FT IR, ¹H and 13C NMR. This new methodology is of interest due to minimizing the cost operational hazards and environmental pollution, high yields, short reaction time, cost effective and simple work-up.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.4 20102010-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400001en10.4067/S0717-97072010000400001
institution Scielo Chile
collection Scielo Chile
language English
topic Cellulose sulfuric acid
biopolymer
4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
environmentally friendly
spellingShingle Cellulose sulfuric acid
biopolymer
4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)
5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
environmentally friendly
MOSADDEGH,ELAHEH
HASSANKHANI,ASADOLLAH
BAGHIZADEH,AMIN
CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
description The one-pot multicomponent synthesis of 4,4'-arylmethylene-bis(3-methyl-1-phenyl-1H-pyrazol-5-ol) was performed effectively by tandem Knoevenagel-Michael reaction of aryl aldehydes and 5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one in the presence of a catalytic amount of cellulose sulfuric acid as an environmentally friendly biopolymer-based solid acid catalyst at reflux conditions. All of obtained compounds were characterized by FT IR, ¹H and 13C NMR. This new methodology is of interest due to minimizing the cost operational hazards and environmental pollution, high yields, short reaction time, cost effective and simple work-up.
author MOSADDEGH,ELAHEH
HASSANKHANI,ASADOLLAH
BAGHIZADEH,AMIN
author_facet MOSADDEGH,ELAHEH
HASSANKHANI,ASADOLLAH
BAGHIZADEH,AMIN
author_sort MOSADDEGH,ELAHEH
title CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
title_short CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
title_full CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
title_fullStr CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
title_full_unstemmed CELLULOSE SULFURIC ACID AS A NEW, BIODEGRADABLE AND ENVIRONMENTALLY FRIENDLY BIO-POLYMER FOR SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(3-METHYL-1-PHENYL-1H-PYRAZOL-5-OLS)
title_sort cellulose sulfuric acid as a new, biodegradable and environmentally friendly bio-polymer for synthesis of 4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1h-pyrazol-5-ols)
publisher Sociedad Chilena de Química
publishDate 2010
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400001
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AT baghizadehamin cellulosesulfuricacidasanewbiodegradableandenvironmentallyfriendlybiopolymerforsynthesisof44arylmethylenebis3methyl1phenyl1hpyrazol5ols
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