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

Author
BELMAR,J.

ALDERETE,J.

ZUÑIGA,C.

JIMÉNEZ,C.

JIMÉNEZ,V.

NÚÑEZ,H.

GRANDY,R.

YORI,A.

Full text
https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0366-16442001000400010
Abstract
3-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
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Artes, Arquitectura y UrbanismoCiencias Agrarias, Forestales y VeterinariasCiencias Exactas y NaturalesCiencias SocialesDerechoEconomía y AdministraciónFilosofía y HumanidadesIngenieríaMedicinaMultidisciplinarias
Institutions
Universidad de ChileUniversidad Católica de ChileUniversidad de Santiago de ChileUniversidad de ConcepciónUniversidad Austral de ChileUniversidad Católica de ValparaísoUniversidad del Bio BioUniversidad de ValparaísoUniversidad Católica del Nortemore

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