AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST

A simple and efficient procedure for synthesis of 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) by one-pot three-component condensation of aromatic aldehydes, ethyl acetoacetate, and phenylhydrazine/hydrazine hydrate under solvent-free conditions in the presence of [Et3NH][HSO4] as catalyst is desc...

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Detalles Bibliográficos
Autores principales:	ZHOU,ZHONGQIANG, ZHANG,YULIANG
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2015
Materias:	4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols) [Et3NH][HSO4] Solvent-free Multicomponent reaction
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300003
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spelling	oai:scielo:S0717-970720150003000032015-12-04AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYSTZHOU,ZHONGQIANGZHANG,YULIANG 4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols) [Et3NH][HSO4] Solvent-free Multicomponent reaction A simple and efficient procedure for synthesis of 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) by one-pot three-component condensation of aromatic aldehydes, ethyl acetoacetate, and phenylhydrazine/hydrazine hydrate under solvent-free conditions in the presence of [Et3NH][HSO4] as catalyst is described. The present protocol offers several advantages such as using a reusable and cost-effective ionic liquid, high yields, simple procedure, easy work-up and eco-friendly reaction conditions.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.60 n.3 20152015-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300003en10.4067/S0717-97072015000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols) [Et3NH][HSO4] Solvent-free Multicomponent reaction
spellingShingle	4,4'-(Arylmethylene)bis(1H-pyrazol-5-ols) [Et3NH][HSO4] Solvent-free Multicomponent reaction ZHOU,ZHONGQIANG ZHANG,YULIANG AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
description	A simple and efficient procedure for synthesis of 4,4'-(arylmethylene)bis(1H-pyrazol-5-ols) by one-pot three-component condensation of aromatic aldehydes, ethyl acetoacetate, and phenylhydrazine/hydrazine hydrate under solvent-free conditions in the presence of [Et3NH][HSO4] as catalyst is described. The present protocol offers several advantages such as using a reusable and cost-effective ionic liquid, high yields, simple procedure, easy work-up and eco-friendly reaction conditions.
author	ZHOU,ZHONGQIANG ZHANG,YULIANG
author_facet	ZHOU,ZHONGQIANG ZHANG,YULIANG
author_sort	ZHOU,ZHONGQIANG
title	AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
title_short	AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
title_full	AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
title_fullStr	AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
title_full_unstemmed	AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST
title_sort	eco-friendly one-pot synthesis of 4,4'-(arylmethylene)bis(1h-pyrazol-5-ols) using [et3nh][hso4] as a recyclable catalyst
publisher	Sociedad Chilena de Química
publishDate	2015
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072015000300003
work_keys_str_mv	AT zhouzhongqiang anecofriendlyonepotsynthesisof44arylmethylenebis1hpyrazol5olsusinget3nhhso4asarecyclablecatalyst AT zhangyuliang anecofriendlyonepotsynthesisof44arylmethylenebis1hpyrazol5olsusinget3nhhso4asarecyclablecatalyst AT zhouzhongqiang ecofriendlyonepotsynthesisof44arylmethylenebis1hpyrazol5olsusinget3nhhso4asarecyclablecatalyst AT zhangyuliang ecofriendlyonepotsynthesisof44arylmethylenebis1hpyrazol5olsusinget3nhhso4asarecyclablecatalyst
_version_	1718445538069708800

AN ECO-FRIENDLY ONE-POT SYNTHESIS OF 4,4'-(ARYLMETHYLENE)BIS(1H-PYRAZOL-5-OLS) USING [Et3NH][HSO4] AS A RECYCLABLE CATALYST

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