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)

dc.creatorMOSADDEGH,ELAHEH
dc.creatorHASSANKHANI,ASADOLLAH
dc.creatorBAGHIZADEH,AMIN
dc.date2010-12-01
dc.date.accessioned2017-03-07T16:35:05Z
dc.date.available2017-03-07T16:35:05Z
dc.identifierhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400001
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/404087
dc.descriptionThe 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.
dc.formattext/html
dc.languageen
dc.publisherSociedad Chilena de Química
dc.sourceJournal of the Chilean Chemical Society v.55 n.4 2010
dc.subjectCellulose sulfuric acid
dc.subjectbiopolymer
dc.subject4,4'-(arylmethylene)bis(3-methyl-1-phenyl-1H-pyrazol-5-ols)
dc.subject5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
dc.subjectenvironmentally friendly
dc.titleCELLULOSE 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)
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución