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SYNTHESIS OF 1-n-ALKYL-3-METHYL- AND 1-n-ALKYL-3- PHENYL-5-PYRAZOLONES AND FORMYL DERIVATIVES

dc.creatorBELMAR,J.
dc.creatorALDERETE,J.
dc.creatorZUÑIGA,C.
dc.creatorJIMÉNEZ,C.
dc.creatorJIMÉNEZ,V.
dc.creatorNÚÑEZ,H.
dc.creatorGRANDY,R.
dc.creatorYORI,A.
dc.date2001-12-01
dc.date.accessioned2020-02-17T15:28:12Z
dc.date.available2020-02-17T15:28:12Z
dc.identifierhttps://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000400010
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/127801
dc.description3-Methyl- and 3-phenyl-5-pyrazolones were alkylated and formylated. The phenyl derivative was less reactive towards alkylation. However in the formylation step 1-n-alkyl-3-methyl- and 1-n-alkyl-3-phenyl-5-pyrazolones showed no difference in reactivity. The alkylated products exist as 5-pyrazolones in chloroform solutions and in dimethylsulfoxide their structure is a 5-hydroxy-pyrazole. Chloroform and dimethyl sulfoxide solutions of 4-formyl derivatives have a structure that is better described as 4-hydroxymethylene-5-pyrazolone
dc.formattext/html
dc.languageen
dc.publisherSociedad Chilena de Química
dc.relation10.4067/S0366-16442001000400010
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourceBoletín de la Sociedad Chilena de Química v.46 n.4 2001
dc.subjectpyrazolones
dc.subjecttautomers
dc.subjectalkylpyrazolones
dc.subjectormylpyrazolones
dc.titleSYNTHESIS OF 1-n-ALKYL-3-METHYL- AND 1-n-ALKYL-3- PHENYL-5-PYRAZOLONES AND FORMYL DERIVATIVES


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